ID |
Date |
Author |
Type |
Category |
Subject |
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152
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Sat Oct 29 10:18:41 2016 |
Gabriele | General | Measurements | S1600447 before and after annealing |
The plot above compares the measured Q for #447 (second batch, flat machined during production), before and after annealing. The annealing improves significantly all Q's.
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153
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Sun Oct 30 17:05:47 2016 |
Gabriele | General | Measurements | S1600448 before and after annealing |
The plot above compares the measured Q for #448 (second batch, flat machined during production), before and after annealing. The annealing improves significantly all Q's. |
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154
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Mon Oct 31 12:51:13 2016 |
Gabriele | General | Measurements | Simulation of dilution factor and measured loss angles |
I made a COMSOL simulation of our wafer (75 mm with flats, 1 mm thick) with a 1 micron thick coating (Tantala), and computed the dilution factor (E_coating / E_total). The result is shown in the plot below:
The dilution factor is slighly mode dependent, around a value of 5.7e-3.
The Q we measured on the latest two annealed wafers are in the range of 5e6 - 10e6 for the good modes, meaning that the total loss angle (subtrate, surface and edge combined) is 1e-7 - 2e-7.
Assuming an undoped tantala coating with loss angle of 4e-4 (http://authors.library.caltech.edu/55765/2/1501.06371.pdf), the disk loss angle after coating will be 2.2e-6, a factor 5 to 10 higher than our uncoated and annealed wafers.
So we can use the wafers as they are for our measurements.
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155
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Tue Nov 1 15:34:49 2016 |
Alena, Calum | General | | Annealing run |
Annealing run (449-453) on 3" wafers - Crime 11/01/2016 https://dcc.ligo.org/T1600507 |
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156
|
Fri Nov 4 08:11:57 2016 |
Gabriele | General | Measurements | S1600450 |
2016-11-04
- 8:08am in chamber
- 8:38am pumping down
- 11:50am QUIET 1162320651 (11:50:34) + 30s, EXCITATION at 1162320710 this excitation didn't wotk very well
- 12:40pm EXCITATION at 1162323596, again it doesn't look good
- 2:00pm: measured Q are very low, it's very hard to excite the first mode. Stopping pumps
- 2:41pm, venting
- 2:45pm, removing sample
Results
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2527.2 2.4665e+06 2.4648e+06 2.4683e+06
4401.5 1.6292e+06 1.6026e+06 1.6567e+06
4467.5 2.0848e+05 2.0822e+05 2.0874e+05
6713.6 4.6050e+05 4.6008e+05 4.6092e+05
6724.0 2.0244e+06 2.0163e+06 2.0326e+06
14079.4 3.7887e+06 3.7784e+06 3.7992e+06
15977.6 2.5322e+06 2.5321e+06 2.5322e+06
16204.9 7.6919e+05 7.6917e+05 7.6922e+05
24542.5 6.0480e+05 6.0479e+05 6.0482e+05
26955.4 1.7958e+06 1.7958e+06 1.7958e+06
28775.0 9.3100e+05 9.3098e+05 9.3102e+05
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| Attachment 3: ringdowns.png
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157
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Fri Nov 4 08:13:25 2016 |
Gabriele | Electronics | General | Power outage? |
This morning I found the cymac and the workstation rebooted, so I suspected a power cut in the last days. However, the function generator and the power supply for the QPD were off. So somebody must have turned them off.
Please write those actions in the elog! |
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158
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Fri Nov 4 11:31:11 2016 |
Gabriele | Electronics | Configuration | Autocenter control and model modifications |
Removed the peak meter lock from the model, since it's not used
Added and EPICS binary bit to control the autocenter, added corresponding buttons to the MEDM screen.
Now the GUI stops the autocentering when acquiring the reference spectrum.
The auto_excite.py also stops the autocentering 35 seconds before the excitation and until 35 second after the excitation, to provide for two reference quiet periods.
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159
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Fri Nov 4 14:56:35 2016 |
Gabriele | General | Measurements | S1600451 |
2016-11-04
- 2:45pm: re-aligned optical setup to horizontal reference
- 2:55pm: installed in chamber, balanced
- 2:56pm, starting roughing pump
- 3:06pm, starting turbo pump
- 4:37pm, excitation at GPS 1162337817: apparently I excited too much and the QPD signals are saturating!
- 7:58pm: new excitation, amplitude 1kV, duration ~20s. Stopped at ~1162349974. This excitation looks good
- 9:07pm:Started auto_excite.py script. It will wait 5 hours, then perfom two excitation with above parameters, separated by 3 hours
- excitations at 1162372099 and 1162382978
2016-11-05
Results
2016-11-04
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1097.0 1.1219e+07 1.1201e+07 1.1236e+07
2515.7 6.3988e+06 6.2433e+06 6.5622e+06
4379.6 9.6150e+06 9.6117e+06 9.6182e+06
4440.9 3.8684e+06 3.8668e+06 3.8701e+06
6678.8 2.7195e+05 2.7170e+05 2.7220e+05
6696.5 2.9698e+06 2.9684e+06 2.9712e+06
6750.6 1.3442e+07 1.3387e+07 1.3497e+07
6811.9 1.9344e+06 1.9288e+06 1.9402e+06
9403.6 1.4946e+05 1.4945e+05 1.4946e+05
10095.6 2.4035e+06 2.4001e+06 2.4069e+06
10237.1 6.5129e+05 6.4697e+05 6.5567e+05
12545.2 1.1434e+06 1.1392e+06 1.1476e+06
12662.5 1.7179e+06 1.7114e+06 1.7245e+06
15901.4 1.5770e+05 1.5769e+05 1.5770e+05
15914.3 2.6775e+06 2.6703e+06 2.6846e+06
16104.5 1.1722e+07 1.1685e+07 1.1760e+07
18110.0 2.1021e+06 2.0988e+06 2.1054e+06
18430.2 9.4278e+05 9.4276e+05 9.4281e+05
18594.0 4.3087e+06 4.3033e+06 4.3142e+06
21119.0 2.6590e+05 2.6589e+05 2.6590e+05
23305.8 2.9146e+06 2.9069e+06 2.9224e+06
24386.0 5.3982e+06 5.3779e+06 5.4187e+06
24654.5 1.2901e+06 1.2900e+06 1.2901e+06
24705.0 1.0320e+06 1.0319e+06 1.0320e+06
25798.0 2.0084e+06 2.0083e+06 2.0084e+06
26123.0 4.1997e+06 4.1996e+06 4.1998e+06
26831.0 5.9972e+05 5.9971e+05 5.9973e+05
28145.0 6.7827e+06 6.7546e+06 6.8110e+06
28555.7 3.7397e+06 3.7397e+06 3.7398e+06
28642.1 3.2190e+06 3.2189e+06 3.2190e+06
29175.0 2.3940e+06 2.3939e+06 2.3940e+06
29190.7 9.6877e+05 9.6876e+05 9.6879e+05
29885.0 1.1788e+06 1.1788e+06 1.1788e+06
30847.0 9.0157e+06 9.0155e+06 9.0158e+06
32238.4 2.3676e+06 2.3676e+06 2.3677e+06
32489.6 1.8718e+06 1.8718e+06 1.8719e+06
2016-11-05 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1097.5 1.0150e+07 1.0127e+07 1.0174e+07
2515.7 5.5427e+06 5.5405e+06 5.5448e+06
4341.0 3.9407e+06 3.9204e+06 3.9613e+06
4379.5 3.7580e+06 3.7570e+06 3.7589e+06
4418.3 4.0055e+06 3.9839e+06 4.0272e+06
4479.5 1.8248e+05 1.8246e+05 1.8250e+05
6640.4 3.1482e+06 3.1137e+06 3.1834e+06
6678.8 2.9326e+06 2.9319e+06 2.9334e+06
6696.5 1.2999e+07 1.2995e+07 1.3004e+07
6712.1 1.8502e+06 1.8416e+06 1.8589e+06
6750.6 1.8423e+06 1.8418e+06 1.8428e+06
6789.1 1.8641e+06 1.8557e+06 1.8726e+06
6812.0 1.2882e+05 1.2875e+05 1.2888e+05
9403.7 2.2149e+06 2.2119e+06 2.2178e+06
10095.7 6.7624e+05 6.7532e+05 6.7716e+05
10237.1 8.8267e+05 8.8113e+05 8.8423e+05
12545.3 1.7193e+06 1.7154e+06 1.7231e+06
12662.9 1.3162e+05 1.3162e+05 1.3163e+05
14015.5 7.8470e+06 7.6850e+06 8.0159e+06
14749.0 8.7237e+05 8.7234e+05 8.7240e+05
15901.5 2.6799e+06 2.6757e+06 2.6840e+06
16104.6 1.8324e+06 1.8309e+06 1.8340e+06
18109.3 9.6584e+05 9.6582e+05 9.6587e+05
18430.3 4.5212e+06 4.5195e+06 4.5229e+06
18659.2 2.5315e+06 2.5315e+06 2.5316e+06
19997.4 6.2817e+05 6.2816e+05 6.2819e+05
20036.5 1.3129e+06 1.3129e+06 1.3130e+06
20278.0 6.2428e+05 6.2426e+05 6.2429e+05
21119.1 3.4785e+06 3.4784e+06 3.4786e+06
22490.4 4.4881e+06 4.4880e+06 4.4882e+06
23305.9 5.3494e+06 5.3429e+06 5.3559e+06
24386.2 1.3629e+06 1.3628e+06 1.3629e+06
24654.4 9.2395e+05 9.2393e+05 9.2397e+05
24704.5 1.9166e+06 1.9132e+06 1.9201e+06
26123.2 6.4702e+05 6.4700e+05 6.4703e+05
26831.0 5.9846e+06 5.9684e+06 6.0009e+06
28555.8 2.9833e+06 2.9832e+06 2.9833e+06
28642.1 2.1156e+06 2.1156e+06 2.1157e+06
28742.9 1.0233e+07 1.0233e+07 1.0233e+07
29175.0 9.1788e+05 9.1786e+05 9.1789e+05
29191.0 1.1637e+06 1.1637e+06 1.1637e+06
29885.1 8.3480e+06 8.3478e+06 8.3481e+06
30846.5 2.2345e+06 2.2345e+06 2.2345e+06
31607.5 3.6183e+05 3.6183e+05 3.6184e+05
32489.4 5.7409e+06 5.7408e+06 5.7410e+06
2016-11-05 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1098.0 8.1698e+06 8.1032e+06 8.2374e+06
2477.0 5.0803e+06 4.9987e+06 5.1646e+06
2515.6 5.5435e+06 5.5413e+06 5.5458e+06
4341.1 3.6399e+06 3.6069e+06 3.6736e+06
4379.6 3.7430e+06 3.7422e+06 3.7439e+06
4418.0 3.6883e+06 3.6647e+06 3.7122e+06
4440.9 1.8011e+05 1.8009e+05 1.8013e+05
6678.7 2.9283e+06 2.9246e+06 2.9320e+06
6696.5 1.2927e+07 1.2908e+07 1.2946e+07
6750.6 1.8937e+06 1.8911e+06 1.8963e+06
6812.1 1.3790e+05 1.3789e+05 1.3791e+05
9365.0 2.2626e+06 2.2625e+06 2.2627e+06
9403.7 2.2105e+06 2.2094e+06 2.2117e+06
10095.5 6.4293e+05 6.4290e+05 6.4296e+05
10237.2 9.2890e+05 9.2885e+05 9.2894e+05
12545.3 1.7237e+06 1.7080e+06 1.7398e+06
15901.4 2.6697e+06 2.6697e+06 2.6698e+06
15914.5 1.1338e+07 1.1245e+07 1.1432e+07
16104.5 1.7841e+06 1.7840e+06 1.7841e+06
18109.5 9.4816e+05 9.4814e+05 9.4819e+05
18430.3 4.6575e+06 4.6555e+06 4.6594e+06
21119.1 3.7468e+06 3.7338e+06 3.7599e+06
23305.9 5.3687e+06 5.3582e+06 5.3792e+06
24386.1 1.3616e+06 1.3616e+06 1.3616e+06
24654.5 9.7495e+05 9.7493e+05 9.7497e+05
24704.4 1.9229e+06 1.9229e+06 1.9230e+06
26831.1 5.8344e+06 5.8342e+06 5.8345e+06
28556.0 3.0677e+06 3.0676e+06 3.0677e+06
29175.2 8.7856e+05 8.7855e+05 8.7858e+05
29190.8 1.1455e+06 1.1454e+06 1.1455e+06
29885.1 8.9158e+06 8.9157e+06 8.9160e+06
30846.6 2.1943e+06 2.1943e+06 2.1944e+06
32489.5 5.2642e+06 5.2641e+06 5.2642e+06
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|
160
|
Fri Nov 4 16:16:23 2016 |
Alena | General | General | Annealing run |
Annealing run (454-459) on 3" wafers - Crime 11/02/2016 https://dcc.ligo.org/LIGO-T1600510
Annealing run (460-465) on 3" wafers - Crime 11/04/2016 https://dcc.ligo.org/T1600513-x0 |
|
161
|
Sat Nov 5 10:49:17 2016 |
Gabriele | General | Measurements | S1600452 |
2015-11-05
- 10:45am in chamber and balanced
- 10:48am roughing pump on
- 10:56am turbo pump on
- 1:00pm: excitation. Quiet before 1162411289, excite (2 kV, 10s), quiet after 1162411438
- 4:07pm: excitation. Quiet before 1162422382, excite (2kV, 20s), quiet after 1162422445
- 5:08pm: pumps off
Results
The first mode at 1 kHz couldn't be measured. Not clear why.
2016-11-05 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2488.7 6.2525e+06 6.2046e+06 6.3012e+06
2527.3 7.2443e+06 7.2391e+06 7.2496e+06
2567.0 9.8492e+04 9.8472e+04 9.8511e+04
4363.0 3.4808e+06 3.4060e+06 3.5590e+06
4401.4 5.8009e+06 5.7966e+06 5.8052e+06
4427.7 1.6106e+05 1.6104e+05 1.6108e+05
4466.5 1.7637e+05 1.7623e+05 1.7651e+05
4505.0 1.6860e+05 1.6858e+05 1.6862e+05
6713.4 4.4123e+06 4.4106e+06 4.4139e+06
6725.3 1.7867e+07 1.7854e+07 1.7880e+07
6750.5 1.9213e+06 1.9079e+06 1.9348e+06
6789.1 2.3629e+06 2.3617e+06 2.3642e+06
6827.7 1.9619e+06 1.9487e+06 1.9754e+06
9454.4 3.0169e+06 3.0136e+06 3.0203e+06
10138.7 8.3140e+06 8.3026e+06 8.3255e+06
10290.4 8.9211e+05 8.9206e+05 8.9215e+05
12615.5 6.3311e+05 6.3308e+05 6.3313e+05
12738.9 2.4194e+05 2.4193e+05 2.4195e+05
14078.0 8.8470e+06 8.8231e+06 8.8710e+06
15974.6 1.5678e+06 1.5649e+06 1.5707e+06
16198.2 6.8727e+05 6.8725e+05 6.8729e+05
18512.9 4.6128e+06 4.5972e+06 4.6286e+06
20103.2 5.6830e+05 5.6829e+05 5.6831e+05
20153.5 1.0308e+06 1.0308e+06 1.0309e+06
21211.0 2.7134e+06 2.7133e+06 2.7135e+06
23409.3 7.0470e+06 7.0469e+06 7.0472e+06
24533.4 1.5102e+06 1.5101e+06 1.5102e+06
25926.0 9.7012e+05 9.7010e+05 9.7014e+05
26951.6 9.2671e+06 9.2669e+06 9.2673e+06
28680.1 5.3425e+06 5.3424e+06 5.3426e+06
28777.7 3.7576e+06 3.7575e+06 3.7576e+06
29370.5 6.4020e+05 6.4019e+05 6.4021e+05
31459.5 1.3127e+06 1.3127e+06 1.3128e+06
2016-11-05 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2525.0 7.0757e+06 7.0674e+06 7.0841e+06
2526.3 7.0794e+06 7.0710e+06 7.0879e+06
4401.5 5.5472e+06 5.4910e+06 5.6046e+06
4465.8 1.9017e+05 1.9015e+05 1.9019e+05
6713.5 4.1401e+06 4.1258e+06 4.1545e+06
6789.1 2.3060e+06 2.3003e+06 2.3117e+06
9454.4 3.1170e+06 3.0629e+06 3.1730e+06
10290.5 9.9500e+05 9.9495e+05 9.9505e+05
14077.6 8.3035e+06 8.2846e+06 8.3225e+06
15975.0 1.7004e+06 1.7004e+06 1.7005e+06
16198.4 9.3526e+05 9.3523e+05 9.3529e+05
23409.0 6.9232e+06 6.8897e+06 6.9570e+06
26951.5 8.9906e+06 8.9904e+06 8.9907e+06
28680.0 5.1012e+06 5.1011e+06 5.1012e+06 |
| Attachment 3: ringdowns.png
|
|
| Attachment 4: Qs_errorbars.png
|
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162
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Sat Nov 5 17:40:35 2016 |
Gabriele | General | Measurements | S1600453 |
2015-11-05
2015-11-06
- 9:34am: pumps off
- 10:08 removed from chamber
Results
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1098.1 1.5137e+07 1.5118e+07 1.5156e+07
2481.0 8.4768e+06 8.3498e+06 8.6077e+06
2519.4 7.9043e+06 7.9003e+06 7.9082e+06
2559.9 1.8115e+06 1.8024e+06 1.8206e+06
4388.9 4.7996e+06 4.7985e+06 4.8006e+06
4455.9 2.1908e+05 2.1905e+05 2.1910e+05
6696.4 4.0144e+06 4.0126e+06 4.0163e+06
6710.7 1.5767e+07 1.5747e+07 1.5787e+07
6772.8 2.6200e+06 2.6164e+06 2.6237e+06
9432.4 3.1762e+06 3.1742e+06 3.1782e+06
10116.4 4.2917e+06 4.2915e+06 4.2920e+06
10271.0 2.6169e+05 2.6168e+05 2.6170e+05
12587.8 2.4988e+06 2.4972e+06 2.5005e+06
14047.1 3.0949e+06 3.0846e+06 3.1052e+06
15936.5 3.3676e+06 3.3470e+06 3.3884e+06
15946.1 1.0214e+07 1.0164e+07 1.0264e+07
16166.6 2.3195e+06 2.3112e+06 2.3279e+06
18475.0 3.6992e+06 3.6991e+06 3.6993e+06
18525.5 2.4106e+06 2.4106e+06 2.4107e+06
20112.0 1.0591e+06 1.0591e+06 1.0591e+06
23361.8 6.6258e+06 6.6139e+06 6.6378e+06
24486.5 1.9252e+06 1.9252e+06 1.9253e+06
26010.0 1.0992e+06 1.0991e+06 1.0992e+06
26897.0 9.2142e+06 9.1310e+06 9.2990e+06
28618.0 3.6201e+06 3.6200e+06 3.6201e+06
28714.7 3.0597e+06 3.0597e+06 3.0598e+06
28804.0 1.2547e+07 1.2485e+07 1.2610e+07
29322.4 1.7786e+06 1.7786e+06 1.7786e+06
31536.4 1.9114e+06 1.9113e+06 1.9114e+06 |
|
163
|
Sun Nov 6 10:14:51 2016 |
Gabriele | General | Measurements | S1600456 |
2016-11-06
- 10:12am: installed in chamber, balanced
- 10:14am: roughing pump on
- 10:22am: turbo pump on
- 12:40pm: excitation:
- quiet before excitation 1162501864+30
- quiet after excitation 1162501946+30
- 4pm excitation
-
6:05pm: In both ringdowns the first mode at 1 kHz wasn't properly excited. I moved the laser beam on a different spot. Using brodband noise I still couldn't get it to ring up. So I injected bandlimited noise 1000-1200 Hz with amplitude of 10000. Mode are up.
Quiet time after injection from 1162519598
-
8:07pm, again band-limited excitation, quiet time after 1162526818
2016-11-07
Results
2016-11-05 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2509.1 4.0579e+06 4.0553e+06 4.0606e+06
2549.8 8.5490e+05 8.4709e+05 8.6286e+05
4370.0 1.6497e+06 1.6492e+06 1.6501e+06
4437.0 2.2329e+05 2.2310e+05 2.2347e+05
6666.4 2.6788e+06 2.6756e+06 2.6819e+06
6680.0 7.6174e+06 7.6026e+06 7.6322e+06
6743.0 1.8669e+06 1.8664e+06 1.8673e+06
6807.3 2.9358e+05 2.9335e+05 2.9382e+05
9389.2 2.3737e+06 2.3726e+06 2.3748e+06
10070.3 8.5206e+05 8.5202e+05 8.5211e+05
10225.0 6.2779e+05 6.2776e+05 6.2782e+05
12529.9 1.3218e+06 1.3217e+06 1.3218e+06
13983.0 1.5269e+06 1.5269e+06 1.5270e+06
15863.5 1.8321e+06 1.8320e+06 1.8321e+06
15875.4 5.0350e+06 5.0348e+06 5.0351e+06
16091.5 1.0913e+06 1.0912e+06 1.0913e+06
18389.0 5.3468e+06 5.3357e+06 5.3580e+06
21074.0 3.7649e+06 3.7648e+06 3.7650e+06
23252.3 3.0067e+06 2.9999e+06 3.0135e+06
24371.4 1.2491e+06 1.2490e+06 1.2491e+06
26778.6 2.5593e+06 2.5592e+06 2.5593e+06
28482.4 2.6427e+06 2.6426e+06 2.6427e+06
28579.0 1.8244e+06 1.8244e+06 1.8245e+06
28678.4 6.4318e+06 6.4317e+06 6.4319e+06
31701.4 1.3385e+06 1.3384e+06 1.3385e+06
2019-11-06 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2509.0 4.3643e+06 4.3445e+06 4.3843e+06
4370.1 2.0745e+06 2.0560e+06 2.0935e+06
4437.0 3.5763e+05 3.4927e+05 3.6641e+05
6666.5 2.8583e+06 2.8327e+06 2.8845e+06
6680.0 9.7911e+06 9.7594e+06 9.8230e+06
6743.0 1.9479e+06 1.9265e+06 1.9698e+06
6807.3 5.0716e+05 4.9331e+05 5.2179e+05
9389.2 2.6386e+06 2.6104e+06 2.6675e+06
10070.3 1.0634e+06 1.0633e+06 1.0634e+06
10225.1 1.0434e+06 1.0433e+06 1.0434e+06
12529.9 1.6029e+06 1.5749e+06 1.6318e+06
13983.3 2.7379e+06 2.7016e+06 2.7751e+06
15863.7 2.2082e+06 2.2082e+06 2.2083e+06
15875.4 3.2435e+06 3.2434e+06 3.2436e+06
23252.2 3.6506e+06 3.6505e+06 3.6507e+06
24371.5 2.0111e+06 2.0110e+06 2.0111e+06
26779.0 2.1974e+05 2.1973e+05 2.1974e+05
28579.1 2.7341e+06 2.7341e+06 2.7342e+06
28679.0 6.2394e+06 6.2393e+06 6.2395e+06
31701.0 2.2893e+06 2.2893e+06 2.2893e+06
2016-11-06 First mode
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1094.0 1.0221e+07 1.0194e+07 1.0249e+07
1115.0 1.5958e+06 1.5885e+06 1.6031e+06
|
| Attachment 9: ringdowns_1st.png
|
|
| Attachment 10: Qs_errorbars_1st.png
|
|
|
164
|
Mon Nov 7 10:39:08 2016 |
Gabriele | General | Measurements | S1600457 |
2016-11-07
- 10:30am, re-aligned optical system to horizontal reference
- 10:37am, in chamber balanced
- 10:38am, started roughing pump
- 10:52am, started turbo pump, pressure was <2 Torr
- disk got briefly excited when the pump was at ~60 Hz, and again at ~200 Hz,
- centered QPD with picomotors at 10:54am,49
- pump at 500 Hz at 10:55am, no more disk excitations.
- IGM on at 10:55am, disk moved briefly afterwards, not sure if correlated since the IGM controlled is still showing "STARTING".
- Disk definitely moved at 10:57:40, when the IGM controller started showing pressure.
IGM switched off at 10:58:45am, disk is not going back!
- QPD recentered using picomotors.
- IGM on again at 11:00am, no disk displacement this time.
- 12:20pm:
- quiet time before excitation 1162585209
- excitation
- quiet time after excitation 1162585348
- 1:49pm: excitation again, 2kV, quiet time after 1162585348
- In both the previous excitations the QPD got misaligned at the beginning, resulting in not very good ring-downs
- Another trial at 1162597014, amplitud 1.5kV. Somebody switched on the light in the lab...
- pumps stopped at 4:09pm
Results
2016-11-07 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1109.0 6.0358e+06 6.0221e+06 6.0496e+06
2543.3 2.8271e+06 2.8234e+06 2.8309e+06
2581.0 9.1904e+05 9.1711e+05 9.2097e+05
2619.5 7.6167e+05 7.4294e+05 7.8136e+05
3413.6 1.1513e+06 1.1511e+06 1.1514e+06
4390.0 2.5891e+06 2.5308e+06 2.6501e+06
4428.7 2.4948e+06 2.4938e+06 2.4958e+06
4467.4 2.6014e+06 2.5551e+06 2.6494e+06
6754.1 1.9049e+06 1.8972e+06 1.9126e+06
6770.9 6.5053e+06 6.4828e+06 6.5279e+06
6825.1 9.5015e+05 9.4829e+05 9.5201e+05
10206.7 7.1637e+06 7.1482e+06 7.1792e+06
12689.2 1.3788e+06 1.3788e+06 1.3789e+06
14169.7 5.2321e+06 5.1965e+06 5.2682e+06
16078.8 1.3844e+06 1.3844e+06 1.3844e+06
16089.5 7.6177e+06 7.5997e+06 7.6358e+06
16289.4 1.1658e+06 1.1658e+06 1.1658e+06
18631.4 2.4582e+06 2.4581e+06 2.4582e+06
20268.5 9.5666e+05 9.5663e+05 9.5668e+05
21348.3 1.2590e+07 1.2590e+07 1.2590e+07
23561.2 2.9089e+06 2.9088e+06 2.9090e+06
27121.0 5.1018e+06 5.1017e+06 5.1019e+06
2016-11-07 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1109.0 6.0358e+06 6.0221e+06 6.0496e+06
2543.3 2.8271e+06 2.8234e+06 2.8309e+06
2581.0 9.1904e+05 9.1711e+05 9.2097e+05
2619.5 7.6167e+05 7.4294e+05 7.8136e+05
3413.6 1.1513e+06 1.1511e+06 1.1514e+06
4390.0 2.5891e+06 2.5308e+06 2.6501e+06
4428.7 2.4948e+06 2.4938e+06 2.4958e+06
4467.4 2.6014e+06 2.5551e+06 2.6494e+06
6754.1 1.9049e+06 1.8972e+06 1.9126e+06
6770.9 6.5053e+06 6.4828e+06 6.5279e+06
6825.1 9.5015e+05 9.4829e+05 9.5201e+05
10206.7 7.1637e+06 7.1482e+06 7.1792e+06
12689.2 1.3788e+06 1.3788e+06 1.3789e+06
14169.7 5.2321e+06 5.1965e+06 5.2682e+06
16078.8 1.3844e+06 1.3844e+06 1.3844e+06
16089.5 7.6177e+06 7.5997e+06 7.6358e+06
16289.4 1.1658e+06 1.1658e+06 1.1658e+06
18631.4 2.4582e+06 2.4581e+06 2.4582e+06
20268.5 9.5666e+05 9.5663e+05 9.5668e+05
21348.3 1.2590e+07 1.2590e+07 1.2590e+07
23561.2 2.9089e+06 2.9088e+06 2.9090e+06
27121.0 5.1018e+06 5.1017e+06 5.1019e+06 |
|
165
|
Mon Nov 7 11:27:16 2016 |
Gabriele | General | Vacuum | Turbo pump excites some resonance at 58 Hz |
I looked into a couple of turbo pump switch on periods, and in both cases when the pump speed hits 58 Hz, a resonance is excited. I'm not sure what's resonating.
Today I let the roughing pump reduce the pressure to a level lower than usual, and this seems to mitigate the effect. The disk wasn't shaking as much as it did in previous pump-downs.
 
|
|
166
|
Mon Nov 7 16:59:10 2016 |
Gabriele | General | Measurements | S1600458 |
2016-11-07
- 4:46pm installed and balanced
- 4:47pm, roughing pump started
- 4:59pm turbo pump started
- 8:23pm: excitation, quiet time before 1162613072, excitation 1 kV, quiet time after 1162614126
- Three more excitations (1.5 kV, 20 seconds) planned for the night
-
Quiet time before excitation: 1162624994
Excitation at 1162625037 (20 s)
Quiet time after excitation: 1162625057
-
Quiet time before excitation: 1162635887
Excitation at 1162635930 (20 s)
Quiet time after excitation: 1162635950
-
Quiet time before excitation: 1162646780
Excitation at 1162646823 (20 s)
Quiet time after excitation: 1162646843
-
Not clear why, but the overnight excitation didn't go through.
Trying again amplitude 3kV, quiet time before 1162657046, quiet time after 1162657246
2016-11-08
Results
2016-11-07
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2551.8 3.7876e+06 3.7330e+06 3.8438e+06
4443.7 3.5381e+06 3.5361e+06 3.5400e+06
4511.3 2.3349e+05 2.3326e+05 2.3373e+05
6778.3 2.7169e+06 2.7161e+06 2.7178e+06
6790.6 8.5771e+06 8.4590e+06 8.6985e+06
6856.4 1.5505e+06 1.5497e+06 1.5513e+06
6918.0 5.2488e+04 5.2484e+04 5.2492e+04
9546.1 2.5680e+06 2.5632e+06 2.5729e+06
10236.2 1.5916e+06 1.5915e+06 1.5917e+06
10392.6 1.9989e+06 1.9988e+06 1.9990e+06
11331.0 1.2034e+06 1.2033e+06 1.2035e+06
12738.7 1.3389e+06 1.3365e+06 1.3414e+06
12865.9 5.5771e+05 5.5768e+05 5.5773e+05
14212.1 4.5965e+06 4.5963e+06 4.5966e+06
16123.7 2.8340e+06 2.8253e+06 2.8427e+06
16136.4 8.1131e+06 8.0328e+06 8.1950e+06
16357.3 2.3864e+06 2.3820e+06 2.3908e+06
18688.6 3.6459e+06 3.6459e+06 3.6460e+06
18865.2 2.2149e+06 2.2149e+06 2.2150e+06
20348.7 1.5629e+06 1.5628e+06 1.5629e+06
21415.2 1.7095e+06 1.7095e+06 1.7095e+06
21904.5 3.6954e+06 3.6953e+06 3.6955e+06
23630.5 1.3725e+06 1.3724e+06 1.3725e+06
23787.0 3.3216e+05 3.3215e+05 3.3216e+05
24771.6 1.1522e+06 1.1522e+06 1.1523e+06
25236.5 1.9997e+06 1.9996e+06 1.9997e+06
25543.0 5.9194e+05 5.9193e+05 5.9195e+05
25562.4 8.3780e+05 8.3778e+05 8.3782e+05
27208.6 2.2973e+06 2.2972e+06 2.2973e+06
28226.8 6.0508e+06 6.0507e+06 6.0509e+06
28228.5 5.1058e+06 5.1057e+06 5.1058e+06
28233.5 2.8462e+06 2.8461e+06 2.8462e+06
28946.1 3.0162e+06 3.0161e+06 3.0162e+06
29045.1 1.5018e+06 1.5018e+06 1.5018e+06
29139.3 4.5280e+06 4.5280e+06 4.5281e+06
29398.6 6.9469e+06 6.9468e+06 6.9470e+06
29622.5 1.2690e+06 1.2690e+06 1.2690e+06
30303.0 1.8432e+06 1.8431e+06 1.8432e+06
31149.4 1.0890e+06 1.0890e+06 1.0891e+06
32024.0 2.0661e+06 2.0660e+06 2.0661e+06
2016-11-08
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1112.6 6.0778e+06 6.0522e+06 6.1037e+06
2551.8 4.2832e+06 4.2750e+06 4.2915e+06
4405.0 3.7124e+06 3.6470e+06 3.7801e+06
4443.7 3.4543e+06 3.4532e+06 3.4554e+06
4511.3 2.3471e+05 2.3442e+05 2.3500e+05
6778.3 2.7676e+06 2.7667e+06 2.7685e+06
6790.5 9.3077e+06 9.2532e+06 9.3628e+06
6818.0 1.5965e+06 1.5964e+06 1.5966e+06
6856.4 1.5612e+06 1.5607e+06 1.5617e+06
6895.0 1.5618e+06 1.5617e+06 1.5619e+06
6918.3 5.5271e+04 5.5267e+04 5.5275e+04
9546.1 2.4813e+06 2.4792e+06 2.4834e+06
10236.1 1.4156e+06 1.4156e+06 1.4157e+06
10392.6 1.9300e+06 1.9232e+06 1.9369e+06
11331.6 1.4138e+06 1.4137e+06 1.4138e+06
12738.7 1.5267e+06 1.5254e+06 1.5281e+06
12865.8 6.3722e+05 6.3719e+05 6.3724e+05
14211.9 4.4968e+06 4.4967e+06 4.4970e+06
16123.6 2.6170e+06 2.6169e+06 2.6171e+06
16136.4 7.7399e+06 7.6976e+06 7.7827e+06
16357.2 1.9119e+06 1.9077e+06 1.9161e+06
18688.5 3.1745e+06 3.1745e+06 3.1746e+06
18865.0 2.0300e+06 2.0299e+06 2.0300e+06
20348.7 1.4390e+06 1.4390e+06 1.4391e+06
21415.1 1.6406e+06 1.6405e+06 1.6406e+06
23630.5 1.5226e+06 1.5225e+06 1.5226e+06
25237.0 2.5215e+06 2.5214e+06 2.5215e+06
25543.0 8.4456e+05 8.4455e+05 8.4458e+05
27208.5 2.8485e+06 2.8484e+06 2.8485e+06
28946.0 2.7426e+06 2.7426e+06 2.7427e+06
29622.3 1.2209e+06 1.2209e+06 1.2209e+06
|
|
167
|
Tue Nov 8 11:39:20 2016 |
Gabriele | General | Measurements | S1600459 |
2016-11-08
- 11:23, in chamber, balanced
- 11:25 roughing pump on
- 11:38 turbo pump on
- 1:38pm excitation (3kV, ~20s). Quiet time before: 1162677138, quiet time after 1162677462
- 3:27pm excitation. (3kV, 30s). Quiet time after 1162682879
- 4:37pm, pumps stopped
Results
2016-11-08 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1108.3 1.5638e+07 1.5570e+07 1.5708e+07
2503.6 7.2192e+06 6.8796e+06 7.5940e+06
2542.2 7.3800e+06 7.3760e+06 7.3839e+06
4389.0 5.3514e+06 5.3121e+06 5.3913e+06
4427.6 5.3885e+06 5.3869e+06 5.3901e+06
4466.2 5.4399e+06 5.4000e+06 5.4803e+06
4495.0 2.1932e+05 2.1899e+05 2.1966e+05
6754.2 3.8355e+06 3.8326e+06 3.8383e+06
6767.2 1.3227e+07 1.3213e+07 1.3240e+07
6793.5 2.1749e+06 2.1747e+06 2.1751e+06
6832.1 2.1373e+06 2.1366e+06 2.1380e+06
6870.6 2.2276e+06 2.2274e+06 2.2278e+06
9512.8 2.9775e+06 2.9723e+06 2.9828e+06
10200.3 2.5862e+06 2.5812e+06 2.5913e+06
10357.0 1.7162e+06 1.7161e+06 1.7163e+06
12694.6 5.9843e+05 5.9841e+05 5.9845e+05
14162.4 4.9621e+06 4.9386e+06 4.9860e+06
16069.7 1.1980e+06 1.1979e+06 1.1980e+06
16080.1 2.6316e+06 2.6237e+06 2.6395e+06
16301.9 1.4163e+06 1.4162e+06 1.4163e+06
18623.9 3.6294e+06 3.6258e+06 3.6330e+06
20280.4 8.2385e+05 8.2383e+05 8.2387e+05
23548.3 4.6763e+06 4.6762e+06 4.6764e+06
24690.0 1.1723e+06 1.1723e+06 1.1724e+06
25694.0 5.4900e+05 5.4899e+05 5.4901e+05
27116.0 2.5536e+06 2.5536e+06 2.5537e+06
28845.1 1.6430e+06 1.6430e+06 1.6430e+06
29041.5 2.5349e+06 2.5348e+06 2.5349e+06
29519.0 2.5811e+06 2.5811e+06 2.5812e+06
30419.5 1.8440e+06 1.8439e+06 1.8440e+06
31263.4 1.5940e+06 1.5940e+06 1.5941e+06
32136.9 4.5330e+06 4.5330e+06 4.5331e+06
2016-11-08 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1108.4 1.3404e+07 1.3360e+07 1.3447e+07
2542.2 6.9483e+06 6.9392e+06 6.9574e+06
4389.0 4.5933e+06 4.5528e+06 4.6345e+06
4427.6 5.0578e+06 5.0565e+06 5.0591e+06
4466.1 4.7063e+06 4.6660e+06 4.7473e+06
4495.1 2.2376e+05 2.2324e+05 2.2427e+05
6754.3 3.5768e+06 3.5759e+06 3.5777e+06
6767.1 1.2441e+07 1.2411e+07 1.2470e+07
6793.7 1.9583e+06 1.9581e+06 1.9584e+06
6832.2 2.0323e+06 2.0318e+06 2.0329e+06
6870.7 2.0027e+06 2.0026e+06 2.0029e+06
9512.8 2.7522e+06 2.7497e+06 2.7546e+06
10200.4 2.4866e+06 2.4793e+06 2.4938e+06
10357.0 1.6884e+06 1.6837e+06 1.6931e+06
12694.7 6.2234e+05 6.2231e+05 6.2236e+05
14162.3 5.4381e+06 5.4299e+06 5.4463e+06
16069.8 1.1596e+06 1.1595e+06 1.1596e+06
16080.2 2.5075e+06 2.5002e+06 2.5148e+06
16302.0 1.3303e+06 1.3302e+06 1.3303e+06
18624.0 3.6265e+06 3.6207e+06 3.6322e+06
20280.6 7.8640e+05 7.8638e+05 7.8642e+05
21342.5 6.1946e+06 6.1945e+06 6.1948e+06
23548.5 3.9191e+06 3.9190e+06 3.9191e+06
24690.1 1.0713e+06 1.0713e+06 1.0713e+06
28845.3 1.6909e+06 1.6909e+06 1.6910e+06
29041.7 2.6668e+06 2.6668e+06 2.6669e+06
29518.6 2.4022e+06 2.4022e+06 2.4022e+06
30419.3 1.5929e+06 1.5929e+06 1.5930e+06
31263.0 1.4750e+06 1.4750e+06 1.4751e+06
32136.8 4.1712e+06 4.1711e+06 4.1713e+06
|
|
168
|
Tue Nov 8 17:09:20 2016 |
Gabriele | General | Measurements | S1600460 |
2016-11-08
2016-11-09
Results
2016-11-08 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1119.5 6.6404e+05 6.4444e+05 6.8484e+05
2504.0 5.3952e+06 5.3663e+06 5.4245e+06
2505.5 5.4008e+06 5.3791e+06 5.4226e+06
2510.6 1.0237e+06 9.9922e+05 1.0495e+06
2537.5 5.5690e+05 5.5679e+05 5.5701e+05
2545.0 9.5810e+05 9.5676e+05 9.5944e+05
2552.0 7.5631e+05 7.5616e+05 7.5646e+05
2582.3 1.0468e+06 1.0373e+06 1.0565e+06
3377.5 1.2974e+06 1.2972e+06 1.2975e+06
4361.5 2.9905e+06 2.9870e+06 2.9940e+06
4390.0 1.5871e+05 1.5869e+05 1.5873e+05
4428.9 1.6234e+05 1.6226e+05 1.6242e+05
4467.5 1.6373e+05 1.6371e+05 1.6375e+05
6653.7 3.0794e+06 3.0779e+06 3.0809e+06
6670.1 1.0338e+07 1.0326e+07 1.0350e+07
6730.4 1.4921e+06 1.4893e+06 1.4949e+06
6798.0 3.5459e+05 3.5456e+05 3.5461e+05
9372.3 2.1885e+06 2.1875e+06 2.1895e+06
10055.0 1.6518e+06 1.6517e+06 1.6519e+06
10210.3 2.7007e+05 2.7005e+05 2.7008e+05
12507.3 1.6391e+06 1.6391e+06 1.6392e+06
13961.7 7.0939e+06 7.0387e+06 7.1500e+06
15837.2 2.0382e+06 2.0365e+06 2.0399e+06
15850.6 5.9047e+06 5.8559e+06 5.9543e+06
16064.1 1.8247e+06 1.8246e+06 1.8247e+06
18532.6 3.1042e+05 3.1041e+05 3.1043e+05
18797.0 1.8528e+06 1.8527e+06 1.8528e+06
19983.2 1.3315e+06 1.3196e+06 1.3436e+06
21043.9 6.7756e+06 6.3946e+06 7.2047e+06
22640.6 2.6064e+06 2.6063e+06 2.6064e+06
23218.7 4.4360e+06 4.4359e+06 4.4361e+06
24331.4 1.2956e+06 1.2955e+06 1.2956e+06
26268.9 5.9110e+05 5.9109e+05 5.9111e+05
26740.4 3.9234e+06 3.9234e+06 3.9235e+06
28436.5 2.8936e+06 2.8858e+06 2.9014e+06
28636.0 2.4942e+06 2.4941e+06 2.4942e+06
29140.0 5.9494e+05 5.9493e+05 5.9495e+05
30906.6 2.0991e+06 2.0991e+06 2.0991e+06
32340.0 1.9250e+06 1.9250e+06 1.9250e+06
2016-11-08 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1112.1 1.0416e+06 1.0354e+06 1.0479e+06
2224.6 1.0526e+06 1.0498e+06 1.0555e+06
2506.2 6.2467e+06 6.2222e+06 6.2715e+06
2511.0 9.1074e+05 8.9608e+05 9.2589e+05
2544.9 9.2936e+05 9.2745e+05 9.3127e+05
2579.0 9.3199e+05 9.2088e+05 9.4336e+05
2583.3 9.1765e+05 9.1228e+05 9.2308e+05
2778.1 2.6436e+06 2.6213e+06 2.6664e+06
3657.0 9.4905e+05 9.4892e+05 9.4918e+05
4323.0 2.7441e+06 2.6975e+06 2.7924e+06
4361.4 2.9870e+06 2.9852e+06 2.9887e+06
5618.3 9.7528e+05 9.7519e+05 9.7536e+05
6653.7 2.9851e+06 2.9799e+06 2.9903e+06
6670.0 1.0065e+07 1.0049e+07 1.0081e+07
6691.7 1.4940e+06 1.4774e+06 1.5110e+06
6723.0 9.4356e+04 9.4349e+04 9.4363e+04
6730.5 1.5010e+06 1.5000e+06 1.5021e+06
6737.7 9.3824e+04 9.3817e+04 9.3831e+04
6769.0 1.4817e+06 1.4683e+06 1.4954e+06
6797.8 3.4621e+05 3.4618e+05 3.4623e+05
7842.6 1.3638e+06 1.3637e+06 1.3639e+06
9372.2 2.1002e+06 2.0979e+06 2.1025e+06
10055.0 1.6575e+06 1.6417e+06 1.6735e+06
10210.0 2.7696e+05 2.7694e+05 2.7697e+05
12507.3 1.5841e+06 1.5824e+06 1.5858e+06
13961.5 6.9382e+06 6.8656e+06 7.0122e+06
15837.2 1.9985e+06 1.9964e+06 2.0006e+06
15850.6 5.9234e+06 5.9232e+06 5.9236e+06
16064.0 1.7705e+06 1.7704e+06 1.7705e+06
18361.4 2.5816e+06 2.5815e+06 2.5817e+06
19983.2 1.3972e+06 1.3907e+06 1.4038e+06
21043.9 9.7066e+06 8.8724e+06 1.0714e+07
22640.9 2.8173e+06 2.8173e+06 2.8174e+06
23218.7 4.2100e+06 4.2099e+06 4.2101e+06
24331.1 1.2336e+06 1.2336e+06 1.2336e+06
28436.4 2.7860e+06 2.7860e+06 2.7861e+06
28635.6 2.7569e+06 2.7568e+06 2.7569e+06
|
|
169
|
Wed Nov 9 09:56:50 2016 |
Gabriele | General | Measurements | S1600461 |
2016-11-09
- 9:45am in chamber, balanced
- 9:46am roughing pump on
- 9:57am turbo pump on
- 1:02pm: quiet time before excitation 1162760526, excitation ampl. 3kV, duration ~20s, quiet time after 1162760661
- 2:25pm, another excitation, quiet time after 1162765583
- 3:30pm, pumps off
Results
2016-11-08 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1112.3 1.5917e+07 1.5885e+07 1.5948e+07
1944.9 2.7053e+07 2.6225e+07 2.7935e+07
2512.9 5.8309e+05 5.8297e+05 5.8321e+05
2551.4 6.1779e+05 6.1606e+05 6.1953e+05
4444.4 6.9722e+05 6.9646e+05 6.9798e+05
4471.6 1.6717e+05 1.6715e+05 1.6719e+05
4502.5 5.2860e+04 5.2854e+04 5.2866e+04
4510.2 1.7001e+05 1.6995e+05 1.7008e+05
4518.0 5.2761e+04 5.2755e+04 5.2767e+04
4548.8 1.6907e+05 1.6906e+05 1.6909e+05
6741.5 1.6607e+06 1.6606e+06 1.6608e+06
6780.0 1.6527e+06 1.6523e+06 1.6531e+06
6803.6 9.9399e+06 9.9362e+06 9.9437e+06
6818.5 1.6635e+06 1.6633e+06 1.6636e+06
6856.0 1.2917e+06 1.2866e+06 1.2968e+06
9548.9 6.6037e+05 6.5927e+05 6.6147e+05
10252.2 1.1877e+07 1.1873e+07 1.1881e+07
10406.4 9.5454e+05 9.5449e+05 9.5458e+05
12742.3 2.5129e+05 2.5128e+05 2.5130e+05
14231.9 5.2480e+05 5.2478e+05 5.2482e+05
16143.0 2.1547e+06 2.1546e+06 2.1547e+06
16165.5 9.9736e+06 9.9305e+06 1.0017e+07
16324.1 2.0684e+06 2.0684e+06 2.0685e+06
16362.7 2.0847e+06 2.0838e+06 2.0857e+06
16401.2 2.0931e+06 2.0931e+06 2.0932e+06
18713.5 3.0002e+06 3.0001e+06 3.0002e+06
20305.5 3.7687e+05 3.7686e+05 3.7688e+05
20356.6 5.7487e+05 5.7486e+05 5.7488e+05
21448.8 5.5873e+06 5.5759e+06 5.5988e+06
23660.7 3.4572e+06 3.4454e+06 3.4690e+06
24779.6 6.1454e+05 6.1453e+05 6.1455e+05
27248.5 4.3485e+06 4.3485e+06 4.3486e+06
29080.9 3.2828e+06 3.2828e+06 3.2829e+06
29192.0 1.1073e+07 1.0994e+07 1.1153e+07
29668.3 1.1949e+06 1.1949e+06 1.1949e+06
31978.4 3.9904e+06 3.9904e+06 3.9905e+06
2016-11-09 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1112.3 1.5872e+07 1.5840e+07 1.5903e+07
1945.0 2.9329e+07 2.8527e+07 3.0177e+07
2224.4 1.6491e+07 1.6262e+07 1.6727e+07
2512.9 7.2946e+05 7.2513e+05 7.3384e+05
2551.5 7.7884e+05 7.7715e+05 7.8054e+05
4444.4 6.8441e+05 6.8422e+05 6.8459e+05
4471.6 1.7717e+05 1.7715e+05 1.7719e+05
4502.5 6.9790e+04 6.9783e+04 6.9798e+04
4510.3 1.7365e+05 1.7357e+05 1.7373e+05
4517.7 6.9972e+04 6.9964e+04 6.9980e+04
4548.8 1.7984e+05 1.7982e+05 1.7986e+05
6741.5 1.7916e+06 1.7915e+06 1.7917e+06
6780.0 1.8821e+06 1.8817e+06 1.8825e+06
6803.6 1.1061e+07 1.1050e+07 1.1071e+07
6818.5 1.8161e+06 1.8160e+06 1.8163e+06
6855.9 1.3496e+06 1.3472e+06 1.3521e+06
9549.0 6.6677e+05 6.6557e+05 6.6798e+05
10252.1 1.1961e+07 1.1945e+07 1.1977e+07
10406.4 9.8990e+05 9.8647e+05 9.9336e+05
12742.4 2.3726e+05 2.3725e+05 2.3727e+05
12829.0 3.7039e+05 3.7038e+05 3.7041e+05
12860.0 1.6576e+05 1.6576e+05 1.6577e+05
12867.9 3.7196e+05 3.6849e+05 3.7549e+05
12875.0 1.6658e+05 1.6657e+05 1.6658e+05
14231.9 5.1978e+05 5.1976e+05 5.1980e+05
16143.0 2.2069e+06 2.2068e+06 2.2069e+06
16165.5 1.0126e+07 1.0110e+07 1.0143e+07
16324.3 2.0036e+06 2.0035e+06 2.0036e+06
16362.7 2.0305e+06 2.0295e+06 2.0316e+06
16401.4 2.0320e+06 2.0319e+06 2.0320e+06
20356.7 5.8725e+05 5.8724e+05 5.8727e+05
21449.0 7.7227e+06 7.6377e+06 7.8096e+06
23660.8 3.2698e+06 3.2604e+06 3.2792e+06
24779.8 6.2124e+05 6.2123e+05 6.2125e+05
27248.5 4.2218e+06 4.2217e+06 4.2219e+06
29081.0 3.3153e+06 3.3152e+06 3.3153e+06
29192.1 1.0923e+07 1.0847e+07 1.1000e+07
29668.0 1.2406e+06 1.2406e+06 1.2407e+06
31978.4 3.5580e+06 3.5580e+06 3.5581e+06
|
| Attachment 3: ringdowns.png
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|
|
170
|
Wed Nov 9 15:32:11 2016 |
Gabriele | General | Noise hunting | Noise below 2 kHz is not due to the roughing pump, but to the clean air filters |
The two spectra below show basically no difference (blue roughing pump on, red, roughing pump off)
Instead, below is another comparison: blue same as before, standard condition, red with one of the two clean air filters momentarily off. There is some clear improvement. The second filter is too hard to switch off!
|
|
171
|
Wed Nov 9 16:25:21 2016 |
Gabriele | General | Measurements | S1600463 |
2016-11-09
- 4:24pm, in chamber, balanced
- 4:25pm, roughing pump on
- 4:37, turbo pump on
- 6:44pm: excitation 3kV, ~30s. Quiet time before 1162781217, quiet time after 1162781428
- 9:12pm; excitation 3kV, ~30s, Quiet time before 1162789967, quiet time after 1162790079
- two more excitations planned for the night
2016-11-10
Results
2016-11-09 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1099.5 1.0066e+07 1.0046e+07 1.0086e+07
2521.9 5.7421e+06 5.7384e+06 5.7458e+06
4392.7 3.5549e+06 3.5484e+06 3.5613e+06
4458.8 1.1698e+05 1.1608e+05 1.1790e+05
6701.0 3.0215e+06 3.0192e+06 3.0239e+06
6719.8 1.1624e+07 1.1611e+07 1.1637e+07
6777.1 1.8900e+06 1.8890e+06 1.8910e+06
9438.3 2.4180e+06 2.4002e+06 2.4362e+06
10129.8 1.2106e+06 1.2093e+06 1.2120e+06
10284.4 1.3457e+06 1.3388e+06 1.3527e+06
12595.2 1.6405e+06 1.6305e+06 1.6507e+06
14065.3 8.5283e+06 8.5246e+06 8.5320e+06
15952.1 1.8901e+06 1.8839e+06 1.8964e+06
15966.8 7.1163e+06 7.1087e+06 7.1239e+06
16177.1 1.5698e+06 1.5615e+06 1.5782e+06
21197.9 6.1736e+06 6.1661e+06 6.1812e+06
23390.2 3.3534e+06 3.3460e+06 3.3608e+06
24497.3 1.4166e+06 1.4166e+06 1.4166e+06
25987.4 6.7031e+05 6.7029e+05 6.7032e+05
26935.8 3.9783e+06 3.9417e+06 4.0156e+06
28641.0 2.5059e+06 2.4891e+06 2.5229e+06
28845.9 4.8941e+06 4.8735e+06 4.9149e+06
29758.0 6.6465e+06 6.6350e+06 6.6580e+06
2016-11-09 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1099.5 9.7632e+06 9.7168e+06 9.8100e+06
2521.9 5.2682e+06 5.2631e+06 5.2733e+06
4392.7 3.3298e+06 3.3290e+06 3.3307e+06
4458.8 1.1263e+05 1.1219e+05 1.1307e+05
6700.9 2.8184e+06 2.8131e+06 2.8237e+06
6719.7 1.1530e+07 1.1520e+07 1.1540e+07
6777.1 1.8290e+06 1.8255e+06 1.8325e+06
9438.4 2.2950e+06 2.2714e+06 2.3191e+06
10129.8 1.1372e+06 1.1363e+06 1.1381e+06
10284.4 1.3204e+06 1.3176e+06 1.3231e+06
12595.2 1.5333e+06 1.5294e+06 1.5373e+06
14065.3 7.9394e+06 7.9358e+06 7.9431e+06
15952.1 9.8727e+05 9.8514e+05 9.8941e+05
15966.8 5.4806e+06 5.4721e+06 5.4892e+06
16177.1 1.5194e+06 1.5113e+06 1.5275e+06
23390.1 3.1415e+06 3.1342e+06 3.1489e+06
24497.0 1.3865e+06 1.3865e+06 1.3865e+06
26935.7 4.8356e+06 4.8222e+06 4.8491e+06
28641.0 2.3571e+06 2.3347e+06 2.3799e+06
28845.9 4.6321e+06 4.6008e+06 4.6638e+06
29757.9 4.3171e+06 4.2818e+06 4.3530e+06
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172
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Thu Nov 10 10:03:17 2016 |
Gabriele | General | Measurements | S1600465 |
2016-11-10
- 10:01am, in chamber, balanced
- 10:03am, roughing pump on
- 10:23am, turbo pump on
- 12:16pm excitation (3kV, ~20s), quiet time before 1162844853, quiet time after 1162844912.
- This was lost because the frame disk was full and the wiper.pl script was not running!!! The crontab was pointing to x1 instead of x3
- I deleted some old frame files and updated the crontab. The problem should be fixed now
- 1:50pm, excitation (3kV, ~30s), quiet time before 1162850776, quiet time after 1162850868
- 2:50pm, excitation (1.9kV, ~30s), quiet time before 1162853341, quiet time after 1162853481
- 3:40pm, pumps off
Results
Q's are low!
2016-11-10 A
 
  
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1095.0 1.2015e+06 1.1994e+06 1.2036e+06
2472.1 1.2645e+06 1.2565e+06 1.2726e+06
2510.4 1.2525e+06 1.2519e+06 1.2531e+06
2548.4 7.3296e+05 7.3138e+05 7.3454e+05
2587.0 7.5560e+05 7.4510e+05 7.6639e+05
4371.3 1.0427e+06 1.0421e+06 1.0432e+06
4433.9 1.8185e+05 1.8162e+05 1.8209e+05
6667.0 8.1669e+05 8.1586e+05 8.1753e+05
6680.7 3.9680e+06 3.9658e+06 3.9703e+06
6739.0 1.0240e+06 1.0235e+06 1.0244e+06
6799.2 4.1092e+05 4.1047e+05 4.1137e+05
9388.7 7.9932e+05 7.9878e+05 7.9987e+05
10217.9 1.7660e+05 1.7609e+05 1.7713e+05
11445.0 5.8959e+04 5.8957e+04 5.8962e+04
12527.0 4.6659e+05 4.6255e+05 4.7070e+05
13982.6 1.1515e+06 1.1474e+06 1.1556e+06
15869.2 3.1943e+05 3.1778e+05 3.2111e+05
15877.7 3.0831e+05 3.0830e+05 3.0832e+05
16084.0 1.8992e+05 1.8991e+05 1.8992e+05
23254.4 1.8849e+05 1.8848e+05 1.8849e+05
26771.4 1.1868e+06 1.1776e+06 1.1960e+06
28495.1 3.9945e+05 3.9944e+05 3.9945e+05
28679.0 6.9279e+05 6.9278e+05 6.9280e+05
2016-11-10 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1095.0 1.1892e+06 1.1858e+06 1.1927e+06
2472.0 1.2834e+06 1.2655e+06 1.3017e+06
2510.4 1.2882e+06 1.2870e+06 1.2894e+06
2548.4 7.5857e+05 7.5706e+05 7.6009e+05
2558.0 5.0671e+05 4.6908e+05 5.5088e+05
2586.7 7.6939e+05 7.5984e+05 7.7918e+05
4371.3 1.0269e+06 1.0262e+06 1.0276e+06
4433.9 1.8067e+05 1.8050e+05 1.8085e+05
6667.0 8.1092e+05 8.0996e+05 8.1188e+05
6680.7 3.9209e+06 3.9199e+06 3.9219e+06
6739.1 1.0166e+06 1.0162e+06 1.0169e+06
6777.0 9.9454e+05 9.7718e+05 1.0125e+06
6799.4 4.1306e+05 4.1258e+05 4.1354e+05
9388.7 7.9169e+05 7.9094e+05 7.9243e+05
10218.0 1.7477e+05 1.7442e+05 1.7512e+05
11445.0 6.0272e+04 6.0269e+04 6.0274e+04
12526.8 4.6954e+05 4.6279e+05 4.7648e+05
13982.6 1.1871e+06 1.1852e+06 1.1889e+06
15869.4 3.5465e+05 3.5146e+05 3.5791e+05
15877.6 3.4842e+05 3.4841e+05 3.4843e+05
26771.5 1.7623e+06 1.7588e+06 1.7659e+06
28495.2 1.0461e+06 1.0343e+06 1.0582e+06
28679.3 2.5088e+06 2.5088e+06 2.5089e+06 |
| Attachment 1: spectra.png
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|
| Attachment 2: peaks.png
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173
|
Thu Nov 10 14:13:34 2016 |
gabriele | Electronics | Configuration | MATLAB code to control Thorlabs stages |
To be used to automate the laser polishing. |
| Attachment 1: move_complete.m
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function move_complete(varargin)
global moving;
moving = false;
end
|
| Attachment 2: throlabs_activex.m
|
%% init the controllers
f1 = figure();
f2 = figure();
tstage = actxcontrol('MGMOTOR.MGMotorCtrl.1', [20 20 600 400], f1);
rstage = actxcontrol('MGMOTOR.MGMotorCtrl.1', [20 20 600 400], f2);
set(tstage, 'HWSerialNum', 27001029);
set(rstage, 'HWSerialNum', 27501183);
tstage.StartCtrl();
rstage.StartCtrl();
... 119 more lines ...
|
| Attachment 3: animation.m
|
% try a sequence of movements
figure()
% laser position
a0 = acos(36/(75/2));
laser = [-75/2*sin(a0), 75/2*cos(a0)];
% initial position
t = 0;
... 59 more lines ...
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| Attachment 4: draw_wafer.m
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function draw_wafer(translation, angle, laser)
d = 75; % diameter
f = 36; % distance of flat from center
a = acos(f/(d/2)); % half angle opening of the flat
% build wafer in reference position and orientation
phi = [linspace(a, pi-a, 100), linspace(pi+a, 2*pi-a, 100)];
coordinates = [-d/2*cos(phi); d/2*sin(phi)]';
coordinates(end+1,:) = coordinates(1,:);
... 25 more lines ...
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174
|
Thu Nov 10 16:07:13 2016 |
Alena, Calum | General | General | Annealing run |
Annealing run (466-471) on 3" wafers - Crime 11/10/2016
https://dcc.ligo.org/LIGO-T1600524 |
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175
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Thu Nov 10 16:13:46 2016 |
Gabriele | General | Measurements | S1600450 again |
Noticed a small chip on the side, marked as damaged
2016-11-10
- 4:00pm, optical setup realigned to horizontal reference
- 4:12pm, sample in chamber, balanced
- 4:13pm, roughing pump on
- 4:24pm, turbo pump on
- 7:40pm excitation (2kV, 30 s), quiet time before 1162870778, quiet time after 1162870905
- Three more excitations planned for the night
-
Quiet time before excitation: 1162886983
Excitation at 1162887027 (30 s)
Quiet time after excitation: 1162887057
-
Quiet time before excitation: 1162897887
Excitation at 1162897931 (30 s)
Quiet time after excitation: 1162897961
-
Quiet time before excitation: 1162908791
Excitation at 1162908835 (30 s)
Quiet time after excitation: 1162908865
2016-11-11
Results
2016-11-10 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1102.0 5.3024e+06 5.2839e+06 5.3211e+06
2527.2 2.9856e+06 2.9823e+06 2.9889e+06
2567.4 8.6286e+05 8.5588e+05 8.6995e+05
2788.4 4.6339e+06 4.5542e+06 4.7165e+06
4401.7 1.8540e+06 1.8535e+06 1.8545e+06
4467.4 2.2187e+05 2.2126e+05 2.2248e+05
6713.8 1.4683e+06 1.4679e+06 1.4688e+06
6724.1 6.5991e+06 6.5929e+06 6.6053e+06
6787.9 1.1469e+06 1.1464e+06 1.1474e+06
6853.4 1.1702e+05 1.1657e+05 1.1748e+05
9456.6 1.1755e+06 1.1751e+06 1.1759e+06
10293.0 1.7976e+05 1.7975e+05 1.7977e+05
12619.6 5.9997e+05 5.9686e+05 6.0312e+05
12741.1 2.0405e+05 2.0224e+05 2.0589e+05
14079.9 3.5517e+06 3.5500e+06 3.5535e+06
15976.5 8.4967e+05 8.4690e+05 8.5246e+05
16205.5 9.4038e+05 9.3824e+05 9.4252e+05
18518.2 4.1016e+05 4.0891e+05 4.1141e+05
20106.4 3.0991e+05 3.0990e+05 3.0991e+05
23418.5 1.6833e+06 1.6780e+06 1.6886e+06
25592.6 1.3253e+06 1.3253e+06 1.3254e+06
26956.2 1.3545e+06 1.3545e+06 1.3545e+06
28687.0 9.9537e+05 9.8974e+05 1.0011e+06
28776.0 1.0314e+06 1.0254e+06 1.0374e+06
28861.5 4.1845e+06 4.1844e+06 4.1846e+06
29732.6 1.0816e+06 1.0815e+06 1.0816e+06
2016-11-10 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1101.7 5.2606e+06 5.2430e+06 5.2782e+06
2527.4 2.9196e+06 2.9186e+06 2.9206e+06
2567.3 8.0586e+05 8.0324e+05 8.0850e+05
4401.8 1.8612e+06 1.8609e+06 1.8616e+06
4467.4 2.1847e+05 2.1824e+05 2.1869e+05
6713.8 1.4727e+06 1.4724e+06 1.4730e+06
6724.0 6.6231e+06 6.6191e+06 6.6271e+06
6787.9 1.1299e+06 1.1296e+06 1.1302e+06
6853.2 1.2340e+05 1.2273e+05 1.2408e+05
9456.6 1.1774e+06 1.1772e+06 1.1777e+06
14079.8 3.7293e+06 3.7020e+06 3.7570e+06
15976.3 9.2595e+05 9.2298e+05 9.2894e+05
16205.5 9.2283e+05 9.1471e+05 9.3111e+05
18518.1 3.9478e+05 3.9477e+05 3.9479e+05
23418.5 1.4435e+06 1.4305e+06 1.4567e+06
26956.3 4.3919e+06 4.3824e+06 4.4015e+06
28686.9 8.1295e+05 8.0911e+05 8.1682e+05
28776.0 9.3826e+05 9.3824e+05 9.3827e+05
28861.5 3.1460e+06 3.1028e+06 3.1903e+06
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176
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Thu Nov 10 17:04:05 2016 |
Gabriele | General | Noise hunting | Temporary second QPD |
This morning I installed temporarily a second QPD to monitor the input beam. The goal was to understand where the vibrations at frequencies below 2kHz couple from. As shown in the photo, the second QPD was close to the first one.
The signals in the two QPDs were quite different, and the coherence between them wasn't great. So I concluded that the main coupling path is not through input beam of QPD vibration, but more likely real motion of the disk.
 
I removed the additional QPD and restored the setup to its nominal configuration. The readout infrastructure is still in the model. |
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177
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Fri Nov 11 10:29:57 2016 |
Gabriele | General | Measurements | S1600454 |
Note: Marked at "damaged?" by Alena
2016-11-11
- 10:28am, in chamber, balanced
- 10:29am, roughing pump started
- 10:42am, turbo pump started
- 12:50am, excitation 2kV, 30s , quiet time before 1162929094+30s, quiet time after 1162929206+30s
- something happened after ~850 seconds...
- 1:42pm, excitation 2kV, 30s, quiet time before 1162935703+30s, quiet time after 1162935801+30s
- 3:07pm, pumps stopped
Results
2016-11-11 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1113.5 1.1749e+07 1.1593e+07 1.1908e+07
2553.4 4.0388e+06 4.0359e+06 4.0417e+06
4446.6 4.6170e+06 4.6141e+06 4.6199e+06
4514.3 2.9059e+05 2.9012e+05 2.9107e+05
6782.6 1.0254e+06 1.0241e+06 1.0266e+06
6801.5 1.9269e+06 1.9255e+06 1.9282e+06
6860.7 1.3774e+06 1.3769e+06 1.3779e+06
9552.2 1.9909e+06 1.9848e+06 1.9971e+06
10407.0 2.5039e+06 2.5001e+06 2.5078e+06
12746.0 1.1864e+06 1.1843e+06 1.1885e+06
14230.5 8.0322e+05 8.0158e+05 8.0486e+05
16141.9 6.6250e+05 6.5746e+05 6.6761e+05
16160.8 3.9976e+06 3.9902e+06 4.0050e+06
16367.6 1.4247e+06 1.4121e+06 1.4376e+06
18888.5 1.1559e+05 1.1559e+05 1.1560e+05
21839.5 1.0733e+06 1.0733e+06 1.0734e+06
23660.1 5.7483e+05 5.7481e+05 5.7484e+05
24786.0 8.8886e+05 8.8884e+05 8.8887e+05
25534.0 6.0001e+05 6.0000e+05 6.0002e+05
27247.3 1.2955e+06 1.2955e+06 1.2956e+06
28977.5 1.2581e+06 1.2581e+06 1.2581e+06
29076.5 1.2993e+06 1.2934e+06 1.3052e+06
29342.0 1.2664e+06 1.2664e+06 1.2665e+06
31088.0 4.7656e+05 4.7655e+05 4.7657e+05
31713.0 1.6862e+06 1.6862e+06 1.6862e+06
2016-11-11 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1113.5 4.6063e+06 4.5931e+06 4.6196e+06
2553.5 4.8384e+05 4.7913e+05 4.8864e+05
2594.3 6.9375e+05 6.9006e+05 6.9748e+05
4446.5 3.6254e+06 3.6244e+06 3.6265e+06
4514.3 2.8637e+05 2.8360e+05 2.8918e+05
6782.7 1.6890e+06 1.6826e+06 1.6954e+06
6801.5 3.6093e+06 3.5426e+06 3.6786e+06
6860.7 1.3362e+06 1.3356e+06 1.3368e+06
9552.2 1.6879e+06 1.6392e+06 1.7395e+06
10407.1 2.6518e+06 2.6339e+06 2.6699e+06
12746.1 1.1566e+06 1.1388e+06 1.1750e+06
14230.6 8.4460e+05 8.3550e+05 8.5390e+05
16142.0 6.0038e+05 6.0036e+05 6.0039e+05
16160.9 3.5967e+06 3.5844e+06 3.6090e+06
16367.8 1.0885e+06 1.0782e+06 1.0991e+06
27247.6 1.1635e+06 1.1039e+06 1.2299e+06
28977.8 1.2100e+06 1.2100e+06 1.2100e+06
29076.9 1.7618e+06 1.7392e+06 1.7851e+06
29186.8 3.2163e+06 3.2162e+06 3.2164e+06
29341.5 1.0715e+06 1.0714e+06 1.0715e+06
29680.0 1.1609e+06 1.1608e+06 1.1609e+06
31976.4 1.0149e+06 1.0149e+06 1.0149e+06
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| Attachment 5: spectra.png
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178
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Fri Nov 11 16:38:23 2016 |
Gabriele | General | Measurements | S1600466 |
2016-11-11
2016-11-12
Results
2016-11-11
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1090.5 1.6675e+07 1.6206e+07 1.7172e+07
2501.2 1.1191e+07 1.1163e+07 1.1220e+07
2542.4 4.0691e+05 4.0503e+05 4.0880e+05
4355.2 7.2116e+06 7.2078e+06 7.2154e+06
4423.9 1.5223e+05 1.5221e+05 1.5225e+05
6644.0 4.3292e+06 4.3171e+06 4.3413e+06
6653.5 2.0495e+07 2.0453e+07 2.0537e+07
6722.2 1.6917e+06 1.6891e+06 1.6944e+06
9359.2 3.9201e+06 3.9166e+06 3.9236e+06
10191.7 2.0209e+06 1.9986e+06 2.0438e+06
12490.8 2.5034e+06 2.4804e+06 2.5268e+06
13931.5 1.1993e+07 1.1964e+07 1.2022e+07
15805.0 1.8647e+06 1.8485e+06 1.8812e+06
15811.9 1.1364e+07 1.1336e+07 1.1393e+07
16043.3 1.7186e+06 1.7092e+06 1.7280e+06
18284.5 8.9726e+05 8.9723e+05 8.9728e+05
18497.9 1.0294e+06 1.0208e+06 1.0381e+06
23172.4 4.9055e+06 4.8967e+06 4.9144e+06
24848.5 1.8458e+06 1.8458e+06 1.8458e+06
25987.0 7.9809e+06 7.7772e+06 8.1957e+06
26683.2 1.1400e+07 1.1386e+07 1.1415e+07
28376.3 6.5734e+06 6.5135e+06 6.6345e+06
28473.4 3.8361e+06 3.7811e+06 3.8928e+06
28568.4 1.3993e+07 1.3893e+07 1.4094e+07
30095.6 1.3830e+07 1.3633e+07 1.4032e+07
30952.0 3.3822e+06 3.3822e+06 3.3823e+06
31828.1 2.6835e+06 2.6834e+06 2.6835e+06
32406.5 2.0068e+06 2.0067e+06 2.0068e+06
2016-11-12
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1090.5 1.8006e+07 1.5301e+07 2.1867e+07
2501.0 1.0560e+07 1.0530e+07 1.0590e+07
2542.5 4.4638e+05 4.4567e+05 4.4710e+05
4355.2 7.1326e+06 7.1296e+06 7.1356e+06
4424.1 1.6117e+05 1.5314e+05 1.7008e+05
6644.0 4.5510e+06 4.5445e+06 4.5576e+06
6653.5 2.1827e+07 2.1806e+07 2.1848e+07
6722.2 2.1486e+06 2.1473e+06 2.1500e+06
9359.2 2.2299e+06 2.2212e+06 2.2388e+06
10191.7 2.1281e+06 2.0397e+06 2.2245e+06
12362.5 3.7022e+06 3.7021e+06 3.7024e+06
12490.9 2.7104e+06 2.6974e+06 2.7236e+06
13931.6 1.2366e+07 1.2325e+07 1.2408e+07
15805.1 1.8549e+06 1.8481e+06 1.8617e+06
15811.9 1.1797e+07 1.1776e+07 1.1819e+07
16043.4 2.5330e+06 2.5192e+06 2.5469e+06
18498.0 8.0772e+05 8.0770e+05 8.0774e+05
22735.0 8.2479e+06 8.2477e+06 8.2481e+06
23172.5 5.0380e+06 5.0154e+06 5.0608e+06
24301.0 1.8758e+06 1.8758e+06 1.8759e+06
24848.3 2.3044e+06 2.3043e+06 2.3044e+06
25987.0 7.6224e+06 7.6223e+06 7.6226e+06
26322.0 1.0341e+06 1.0341e+06 1.0341e+06
26683.4 1.1224e+07 1.1194e+07 1.1254e+07
28473.5 3.8882e+06 3.8157e+06 3.9636e+06
28568.5 1.4189e+07 1.4141e+07 1.4237e+07
29067.6 4.7110e+05 4.7110e+05 4.7111e+05
30095.4 1.3861e+07 1.3739e+07 1.3986e+07
30951.9 3.4868e+06 3.4626e+06 3.5112e+06
31828.0 2.9665e+06 2.9352e+06 2.9985e+06
32406.0 2.2123e+06 2.2123e+06 2.2124e+06
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179
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Sat Nov 12 09:39:46 2016 |
Gabriele | General | Measurements | S1600468 |
2016-11-12
- 9:39am, in chamber, balanced
- 9:39am, roughing pump on
- 9:52, turbo pump on
- 12:14pm, excitation: first band passed around 1100 Hz (using filter bank FM5) with amplitude 3kV, then usual broadband with amplitude 3 kV
- quiet time after 1163016908
- 2:50pm, excitation as above, quiet time before 1163026243, quiet time after 1163026429
- 3:28pm, the previous excitations didn't work very well, done anothe one. Quiet time after 1163028556
- 7:09pm, another excitation (3kV, 30s). Quiet time before 1163041791, quiet time after 1163041952. This is good
- 9:04pm, another excitation (3kV, 60s). Quiet time before 1163048623, quiet time after 1163048849
2016-11-13
Results
2016-11-12 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1107.0 1.2271e+07 1.2230e+07 1.2313e+07
2538.2 6.7299e+06 6.7276e+06 6.7322e+06
2580.0 1.0201e+06 1.0045e+06 1.0363e+06
4420.2 3.3946e+06 3.3932e+06 3.3961e+06
4488.3 3.4539e+05 3.4499e+05 3.4579e+05
6742.6 3.4664e+06 3.4654e+06 3.4674e+06
6756.0 1.2338e+07 1.2297e+07 1.2379e+07
6820.8 2.7783e+06 2.7774e+06 2.7792e+06
9496.3 8.6303e+05 8.6269e+05 8.6338e+05
10183.4 1.0287e+06 1.0276e+06 1.0299e+06
12672.0 6.7333e+05 6.7053e+05 6.7615e+05
14139.4 4.5748e+06 4.5636e+06 4.5860e+06
16039.5 1.6091e+06 1.6057e+06 1.6126e+06
16053.5 8.2144e+06 8.2061e+06 8.2228e+06
16273.4 1.4619e+06 1.4573e+06 1.4666e+06
18594.2 5.2728e+05 5.2726e+05 5.2729e+05
20185.4 6.2639e+05 6.2637e+05 6.2641e+05
20243.0 4.9019e+05 4.9017e+05 4.9020e+05
23511.8 5.6831e+05 5.6830e+05 5.6832e+05
24645.2 5.2455e+05 5.2454e+05 5.2456e+05
25430.0 9.6495e+05 9.6493e+05 9.6497e+05
28797.5 1.8557e+06 1.8557e+06 1.8558e+06
28898.6 2.0557e+06 2.0417e+06 2.0699e+06
28996.1 3.8089e+06 3.7871e+06 3.8310e+06
29501.6 4.9763e+05 4.9762e+05 4.9764e+05
29575.6 2.9382e+06 2.9381e+06 2.9382e+06
31293.5 7.5105e+05 7.5104e+05 7.5106e+05
2016-11-12 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
2538.3 6.6590e+06 6.6535e+06 6.6646e+06
4420.1 3.3867e+06 3.3854e+06 3.3880e+06
4488.3 3.5406e+05 3.5393e+05 3.5419e+05
6742.6 3.4635e+06 3.4583e+06 3.4687e+06
6756.0 1.4419e+07 1.4103e+07 1.4750e+07
6820.9 2.7751e+06 2.7729e+06 2.7773e+06
9496.3 8.1276e+05 8.1239e+05 8.1313e+05
10183.4 1.0124e+06 1.0091e+06 1.0157e+06
11422.5 7.7922e+04 7.7919e+04 7.7926e+04
12672.0 6.6570e+05 6.6414e+05 6.6727e+05
14139.4 5.3701e+06 5.3570e+06 5.3832e+06
16039.5 1.7203e+06 1.7179e+06 1.7227e+06
16053.5 8.2568e+06 8.2438e+06 8.2699e+06
16273.4 1.4714e+06 1.4656e+06 1.4773e+06
18225.0 7.3060e+05 7.3058e+05 7.3062e+05
18594.2 5.3148e+05 5.3147e+05 5.3150e+05
20185.1 6.3606e+05 6.3604e+05 6.3607e+05
20243.1 4.9319e+05 4.9317e+05 4.9320e+05
23511.7 5.9188e+05 5.9187e+05 5.9189e+05
24251.5 5.1792e+05 5.1791e+05 5.1793e+05
24645.2 5.1672e+05 5.1671e+05 5.1674e+05
27387.0 2.8928e+05 2.8927e+05 2.8929e+05
28797.6 2.0240e+06 2.0239e+06 2.0240e+06
28898.6 2.0321e+06 2.0198e+06 2.0446e+06
28996.1 3.7763e+06 3.7127e+06 3.8421e+06
29473.0 2.5233e+05 2.5233e+05 2.5233e+05
29575.6 2.8365e+06 2.8364e+06 2.8365e+06
31293.4 7.5482e+05 7.5481e+05 7.5483e+05
31924.4 2.0841e+06 2.0840e+06 2.0841e+06
32187.5 1.0967e+06 1.0967e+06 1.0967e+06 |
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180
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Sat Nov 12 09:49:07 2016 |
Gabriele | General | Measurements | 12 substrates ready for Montreal |
The 12 following substrates have been measured and are ready for the first coating experiment in Montreal:
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181
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Sun Nov 13 10:11:19 2016 |
Gabriele | General | Noise hunting | Noise due to air |
The plot below compares the QPD signal spectra in different configurations (roughing pump on/off, air on/off).
The noise below ~<2kHz is making very hard to measure the Q of the first mode at 1100 Hz
The main source of noise are the clean air filters. I switched them to minimum for the moment being.
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182
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Sun Nov 13 10:40:16 2016 |
Gabriele | General | Measurements | S1600469 |
2016-11-13
- 10:39am in chamber, balanced
- 10:40am, roughing pump on
- 10:49am, turbo pump on
- 1:21pm, excitation (3 kV, 30s), quiet time before 1163107279, quiet time after 1163107415
- 4:20pm, excitation (3kV, 30s) quiet time before 1163118070, quiet time after 1163118145
- 6:34pm, pumps off
Results
2016-11-13 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1109.1 1.2009e+07 1.1962e+07 1.2057e+07
2543.6 5.5300e+06 5.5229e+06 5.5371e+06
4429.4 3.5636e+06 3.5626e+06 3.5646e+06
4495.8 1.9892e+05 1.9849e+05 1.9934e+05
6755.9 2.7949e+06 2.7935e+06 2.7963e+06
6769.6 8.0386e+06 8.0366e+06 8.0406e+06
6833.0 2.0677e+06 2.0671e+06 2.0684e+06
9514.3 2.1571e+06 2.1525e+06 2.1617e+06
10205.2 2.2730e+06 2.2706e+06 2.2755e+06
10360.6 2.0024e+06 2.0012e+06 2.0036e+06
12695.7 1.2769e+06 1.2595e+06 1.2947e+06
14168.6 3.4389e+06 3.4347e+06 3.4430e+06
16085.8 7.6129e+06 7.5677e+06 7.6586e+06
16302.1 1.1512e+06 1.1403e+06 1.1623e+06
18632.1 3.4509e+05 3.4508e+05 3.4510e+05
18806.5 8.7268e+05 8.6962e+05 8.7575e+05
20223.4 6.1496e+05 6.1494e+05 6.1498e+05
21351.3 2.9288e+06 2.9173e+06 2.9403e+06
23559.0 3.1627e+06 3.1237e+06 3.2027e+06
23712.0 4.2045e+05 4.2045e+05 4.2046e+05
24212.1 1.2451e+06 1.2451e+06 1.2451e+06
24687.7 1.1293e+06 1.1293e+06 1.1293e+06
25352.0 3.2923e+06 3.2922e+06 3.2923e+06
27127.4 9.1114e+06 8.9219e+06 9.3091e+06
28854.0 3.0897e+06 3.0269e+06 3.1552e+06
28952.0 2.6625e+06 2.6624e+06 2.6625e+06
29052.0 7.2887e+06 7.0946e+06 7.4937e+06
29523.0 5.4690e+05 5.4689e+05 5.4691e+05
32122.0 1.8145e+06 1.8145e+06 1.8146e+06
2016-11-13 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1130.0 1.7017e+06 1.6756e+06 1.7287e+06
2543.6 5.1969e+06 5.1941e+06 5.1998e+06
4429.4 3.7969e+06 3.7957e+06 3.7980e+06
4495.8 2.0313e+05 2.0241e+05 2.0386e+05
6755.9 2.8919e+06 2.8893e+06 2.8945e+06
6769.6 8.0715e+06 8.0699e+06 8.0730e+06
6833.0 2.1233e+06 2.1227e+06 2.1239e+06
9514.4 2.2500e+06 2.2489e+06 2.2512e+06
10205.3 2.4315e+06 2.4298e+06 2.4332e+06
10360.6 2.2703e+06 2.2641e+06 2.2766e+06
12695.8 1.3177e+06 1.3105e+06 1.3250e+06
14168.6 1.5517e+06 1.5485e+06 1.5549e+06
16074.0 1.1441e+06 1.1441e+06 1.1442e+06
16085.8 7.5344e+06 7.5003e+06 7.5688e+06
16302.1 1.1328e+06 1.1262e+06 1.1394e+06
17549.4 7.2792e+05 7.2790e+05 7.2794e+05
18632.4 4.3522e+05 4.3520e+05 4.3523e+05
18806.6 9.4602e+05 9.4289e+05 9.4916e+05
20144.0 1.3355e+06 1.3355e+06 1.3356e+06
20280.5 2.6059e+05 2.6058e+05 2.6060e+05
21351.0 2.7260e+06 2.7259e+06 2.7261e+06
23559.0 4.1056e+06 3.9740e+06 4.2461e+06
23711.6 4.0080e+05 4.0079e+05 4.0081e+05
24212.0 1.1849e+06 1.1849e+06 1.1849e+06
24687.7 9.9194e+05 9.9192e+05 9.9196e+05
28854.3 3.1246e+06 3.1246e+06 3.1247e+06
28952.0 2.4117e+06 2.4116e+06 2.4117e+06
29052.3 6.6583e+06 6.6582e+06 6.6585e+06
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183
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Sun Nov 13 19:12:56 2016 |
Gabriele | General | Measurements | S1600471 |
2016-11-13
Note: some scratches or contamination visible on the surface near the egde
- 7:03pm, in chamber, balanced
- 7:04pm, roughing pump on
- 7:12pm turbo pump on
- Excitations:
- Quiet time before excitation: 1163133663
Excitation (1100 Hz) at 1163133695 (60 s)
Excitation (broad band) at 1163133757 (60 s)
Quiet time after excitation: 1163133819
- Quiet time before excitation: 1163144649
Excitation (1100 Hz) at 1163144682 (60 s)
Excitation (broad band) at 1163144744 (60 s)
Quiet time after excitation: 1163144806
- Quiet time before excitation: 1163155636
Excitation (1100 Hz) at 1163155669 (60 s)
Excitation (broad band) at 1163155731 (60 s)
X3:CR1-ESD_GAIN => 0
Quiet time after excitation: 1163155793
2016-11-14
Results
2016-11-13 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1098.2 7.4598e+06 7.4472e+06 7.4724e+06
2196.1 8.9864e+06 8.5757e+06 9.4383e+06
2520.2 4.3443e+06 4.3400e+06 4.3486e+06
2558.1 6.0816e+05 6.0143e+05 6.1503e+05
4390.6 2.7832e+06 2.7819e+06 2.7844e+06
6698.1 2.4391e+06 2.4377e+06 2.4404e+06
6720.1 1.2186e+07 1.2174e+07 1.2198e+07
6771.3 1.2193e+06 1.2187e+06 1.2199e+06
6838.3 3.8835e+05 3.8533e+05 3.9143e+05
9434.8 2.0534e+06 2.0501e+06 2.0568e+06
10129.0 1.1046e+05 1.1046e+05 1.1047e+05
10275.4 7.3179e+05 7.2786e+05 7.3576e+05
12589.7 9.8392e+05 9.6718e+05 1.0012e+06
12709.8 3.4484e+05 3.4164e+05 3.4809e+05
14061.9 6.0359e+06 6.0310e+06 6.0408e+06
15955.7 1.8406e+06 1.8350e+06 1.8462e+06
15969.9 7.9895e+06 7.9796e+06 7.9995e+06
16167.0 1.1887e+06 1.1858e+06 1.1916e+06
17933.7 6.7847e+05 6.7845e+05 6.7849e+05
18348.0 1.1646e+06 1.1645e+06 1.1646e+06
18491.0 7.9603e+05 7.9601e+05 7.9605e+05
18658.5 9.0778e+04 9.0775e+04 9.0780e+04
20459.0 1.9219e+06 1.9218e+06 1.9219e+06
21191.2 3.1915e+06 3.1677e+06 3.2157e+06
23383.6 3.5399e+06 3.5198e+06 3.5602e+06
24489.7 9.6402e+05 9.5706e+05 9.7108e+05
24509.4 1.0474e+06 1.0474e+06 1.0474e+06
24553.5 1.4376e+06 1.4375e+06 1.4376e+06
26923.0 7.2079e+06 7.1783e+06 7.2378e+06
28653.0 2.5777e+06 2.5717e+06 2.5838e+06
28747.7 2.2403e+06 2.1968e+06 2.2855e+06
28842.1 1.1938e+07 1.1927e+07 1.1948e+07
29765.5 8.8519e+06 8.7781e+06 8.9269e+06
30712.0 1.6995e+06 1.6848e+06 1.7145e+06
31467.0 4.8235e+05 4.8235e+05 4.8236e+05
31489.0 1.1729e+06 1.1649e+06 1.1809e+06
32120.5 9.6230e+05 9.6229e+05 9.6232e+05
2016-11-13 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1098.1 5.4817e+06 5.4778e+06 5.4856e+06
2520.1 2.7906e+06 2.7896e+06 2.7916e+06
2558.1 6.0809e+05 6.0570e+05 6.1050e+05
4390.6 1.7952e+06 1.7949e+06 1.7955e+06
6698.1 1.4580e+06 1.4576e+06 1.4584e+06
6720.0 8.2579e+06 8.2563e+06 8.2595e+06
6771.4 9.1260e+05 9.1091e+05 9.1429e+05
6838.4 3.8042e+05 3.7936e+05 3.8148e+05
9434.7 1.2099e+06 1.2081e+06 1.2116e+06
10275.5 6.7566e+05 6.7360e+05 6.7773e+05
12589.7 6.8681e+05 6.8318e+05 6.9047e+05
12709.8 2.8213e+05 2.7783e+05 2.8657e+05
14061.9 3.7724e+06 3.7706e+06 3.7741e+06
15955.8 1.2708e+06 1.2636e+06 1.2780e+06
15969.9 5.9870e+06 5.9818e+06 5.9922e+06
16167.0 8.0447e+05 7.9517e+05 8.1399e+05
21191.3 2.7333e+06 2.7051e+06 2.7620e+06
22345.0 2.3568e+06 2.3567e+06 2.3568e+06
23383.5 2.1083e+06 2.1082e+06 2.1083e+06
24489.5 6.6570e+05 6.6569e+05 6.6571e+05
24509.5 7.9636e+05 7.9634e+05 7.9638e+05
24553.5 8.3880e+05 8.3878e+05 8.3881e+05
26922.9 4.6187e+06 4.6004e+06 4.6372e+06
28652.9 1.4483e+06 1.4347e+06 1.4622e+06
28747.6 1.2629e+06 1.2629e+06 1.2629e+06
28842.1 9.5317e+06 9.5238e+06 9.5396e+06
29766.0 6.6922e+06 6.5397e+06 6.8520e+06
30712.1 1.0888e+06 1.0888e+06 1.0888e+06
31489.0 6.8125e+05 6.8124e+05 6.8126e+05
32120.5 7.8667e+05 7.8666e+05 7.8668e+05
2016-11-13 C
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1098.1 5.4335e+06 5.4304e+06 5.4365e+06
2196.2 6.0782e+06 5.6658e+06 6.5552e+06
2486.0 3.0319e+06 2.6660e+06 3.5141e+06
2515.7 2.7819e+06 2.7810e+06 2.7828e+06
2520.2 2.7871e+06 2.7863e+06 2.7879e+06
2558.0 5.8364e+05 5.7358e+05 5.9405e+05
2578.0 2.7145e+06 2.4935e+06 2.9785e+06
3584.0 2.9087e+06 2.6452e+06 3.2303e+06
4390.5 1.7822e+06 1.7818e+06 1.7825e+06
6698.1 1.4479e+06 1.4472e+06 1.4487e+06
6720.1 8.2604e+06 8.2559e+06 8.2648e+06
6771.3 9.1201e+05 9.1142e+05 9.1260e+05
6838.4 3.8280e+05 3.8172e+05 3.8389e+05
9434.8 1.1975e+06 1.1957e+06 1.1994e+06
10275.4 6.7234e+05 6.7108e+05 6.7360e+05
11358.4 5.5649e+04 5.5646e+04 5.5651e+04
12589.7 6.7443e+05 6.7079e+05 6.7812e+05
12710.0 2.9710e+05 2.8917e+05 3.0549e+05
14061.8 3.7379e+06 3.7343e+06 3.7415e+06
15955.7 1.2690e+06 1.2679e+06 1.2700e+06
15969.9 5.9884e+06 5.9823e+06 5.9945e+06
16167.1 7.7811e+05 7.7118e+05 7.8516e+05
17934.1 4.9574e+05 4.9572e+05 4.9575e+05
18348.0 9.0824e+05 9.0822e+05 9.0827e+05
18491.0 7.8942e+05 7.8940e+05 7.8944e+05
18658.1 8.8711e+04 8.8709e+04 8.8714e+04
21191.1 2.3393e+06 2.3179e+06 2.3612e+06
22345.0 2.2103e+06 2.2103e+06 2.2104e+06
23383.5 2.1953e+06 2.1740e+06 2.2171e+06
24489.6 6.4955e+05 6.4954e+05 6.4956e+05
24553.5 8.6897e+05 8.6896e+05 8.6899e+05
26922.9 4.7003e+06 4.6832e+06 4.7176e+06
28652.9 1.4372e+06 1.4312e+06 1.4433e+06
28747.6 1.2544e+06 1.2440e+06 1.2650e+06
28842.0 9.5549e+06 9.5483e+06 9.5616e+06
29766.0 6.9324e+06 6.7433e+06 7.1325e+06
30712.1 1.1017e+06 1.0911e+06 1.1126e+06
32121.0 8.1697e+05 8.1696e+05 8.1698e+05
|
| Attachment 3: ringdowns.png
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|
|
184
|
Mon Nov 14 08:54:49 2016 |
Alena, Calum | General | General | Annealing run |
Annealing run (472-477) on 3" wafers - Crime 11/11/2016 https://dcc.ligo.org/T1600527 |
|
185
|
Mon Nov 14 11:13:33 2016 |
Gabriele | General | Measurements | S1600467 |
2016-11-14
Note: marked as "bad edge" by Alena
- 11:00 in chamber, balanced
- 11:01 roughing pump on
- 11:13 turbo pump on
- 12:28 excitation (2kV, 60s), quiet time before 1163190441, quiet time after 1163190685
- 1:54pm, pumps off
Results
2016-11-14
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1102.7 6.3619e+06 6.3431e+06 6.3807e+06
1122.2 1.8673e+06 1.8623e+06 1.8722e+06
2530.3 3.7678e+06 3.7639e+06 3.7717e+06
2569.2 1.4261e+06 1.4195e+06 1.4327e+06
4407.7 2.7665e+06 2.7429e+06 2.7904e+06
4470.7 2.6197e+05 2.6166e+05 2.6228e+05
6723.0 1.7620e+06 1.7567e+06 1.7674e+06
6734.0 6.9851e+06 6.9809e+06 6.9893e+06
6794.4 1.8494e+06 1.8476e+06 1.8513e+06
9470.5 6.0578e+04 6.0574e+04 6.0581e+04
10152.1 3.8492e+06 3.8370e+06 3.8615e+06
10301.4 4.0275e+05 4.0075e+05 4.0478e+05
12638.1 7.3205e+05 7.2391e+05 7.4036e+05
12756.2 7.5936e+05 7.5933e+05 7.5939e+05
14096.2 5.9662e+06 5.9355e+06 5.9971e+06
16001.5 1.7340e+06 1.7104e+06 1.7582e+06
16227.1 1.2612e+06 1.2585e+06 1.2639e+06
20142.2 5.4880e+05 5.4878e+05 5.4881e+05
20191.9 5.5732e+05 5.5731e+05 5.5734e+05
21236.3 2.6162e+06 2.6086e+06 2.6238e+06
22255.0 1.5152e+06 1.5152e+06 1.5152e+06
23445.0 1.0949e+06 1.0824e+06 1.1077e+06
24391.4 7.4968e+05 7.4967e+05 7.4970e+05
24545.8 1.8061e+05 1.8060e+05 1.8061e+05
24580.0 7.5466e+05 7.5465e+05 7.5468e+05
25561.4 1.2230e+06 1.2230e+06 1.2230e+06
26982.5 3.8512e+06 3.8511e+06 3.8512e+06
28730.1 1.6735e+06 1.6617e+06 1.6855e+06
28824.0 9.7775e+05 9.7774e+05 9.7777e+05
28896.2 4.3667e+06 4.3190e+06 4.4154e+06
31387.2 5.9592e+05 5.9592e+05 5.9593e+05
32301.5 6.3985e+05 6.3984e+05 6.3986e+05
|
|
186
|
Mon Nov 14 11:28:33 2016 |
Gabriele | General | Vacuum | Viton pads |
I added three 1"x1" viton pads below the base plate, and realigned the entire optical system to the horizontal reference
 
The pads seem to reduce a bit the vibrations in the QPD_X direction, but significantly improve the situation in the QPD_Y direction, see below:
|
|
187
|
Mon Nov 14 14:41:08 2016 |
Gabriele | General | Measurements | S1600474 |
2016-11-14
- 2:40pm, in chamber, balanced
- 2:41pm, roughing pump on
- 2:50pm, turbo pump on
- 4:12pm, excitation (2kV, 60s), quiet time before 1163203908, quiet time after 1163204078
-
More excitations:
-
Quiet time before excitation: 1163213574
Excitation (1100 Hz) at 1163213607 (60 s)
Excitation (broad band) at 1163213668 (60 s)
Quiet time after excitation: 1163213730
-
Quiet time before excitation: 1163224560
Excitation (1100 Hz) at 1163224592 (60 s)
Excitation (broad band) at 1163224654 (60 s)
Quiet time after excitation: 1163224716
-
Quiet time before excitation: 1163235546
Excitation (1100 Hz) at 1163235578 (60 s)
Excitation (broad band) at 1163235640 (60 s)
Quiet time after excitation: 1163235702
2016-11-15
Results
2016-11-14 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1107.7 4.6075e+06 4.6037e+06 4.6113e+06
2540.0 5.4810e+06 5.4785e+06 5.4836e+06
4490.2 2.5331e+05 2.5304e+05 2.5359e+05
6743.0 3.3684e+06 3.3662e+06 3.3707e+06
6746.9 3.3685e+06 3.3665e+06 3.3706e+06
6757.6 7.1350e+06 7.1255e+06 7.1445e+06
6772.0 5.8021e+06 5.4002e+06 6.2684e+06
6824.1 2.4899e+06 2.4871e+06 2.4928e+06
9501.9 5.4497e+06 5.4322e+06 5.4674e+06
10187.8 6.4223e+06 6.4184e+06 6.4262e+06
10343.0 2.3547e+06 2.3256e+06 2.3845e+06
12679.1 3.9818e+06 3.9685e+06 3.9952e+06
12806.0 3.2209e+05 3.1252e+05 3.3227e+05
14145.0 4.1585e+06 4.1033e+06 4.2152e+06
16050.7 2.2872e+06 2.2699e+06 2.3047e+06
16058.8 6.6646e+06 6.6544e+06 6.6748e+06
16281.1 2.3068e+06 2.2741e+06 2.3405e+06
18601.1 5.3760e+06 5.3475e+06 5.4049e+06
18776.0 5.7876e+05 5.7874e+05 5.7877e+05
21315.5 8.6998e+06 8.5404e+06 8.8652e+06
23520.3 3.4527e+06 3.4258e+06 3.4799e+06
24658.2 1.3013e+06 1.3012e+06 1.3013e+06
28810.3 6.4869e+06 6.4174e+06 6.5579e+06
28909.1 4.2011e+06 4.1313e+06 4.2734e+06
29001.9 8.7561e+06 8.7012e+06 8.8118e+06
29526.3 2.1542e+06 2.1311e+06 2.1777e+06
29563.5 5.9460e+06 5.8940e+06 5.9989e+06
30463.0 2.0306e+06 2.0306e+06 2.0307e+06
31307.8 2.0177e+06 2.0176e+06 2.0177e+06
31915.5 2.4119e+06 2.4118e+06 2.4119e+06
32178.4 6.3761e+06 6.2763e+06 6.4791e+06
2015-11-14 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1107.5 3.2516e+06 3.2494e+06 3.2538e+06
2539.9 4.5383e+06 4.5368e+06 4.5397e+06
4423.0 2.2248e+06 2.2238e+06 2.2257e+06
4490.2 2.6724e+05 2.6695e+05 2.6754e+05
6688.5 3.5492e+06 3.4597e+06 3.6434e+06
6746.8 3.5335e+06 3.5324e+06 3.5345e+06
6757.6 7.5849e+06 7.5835e+06 7.5864e+06
6824.1 2.4839e+06 2.4824e+06 2.4853e+06
9501.8 4.6405e+06 4.6330e+06 4.6480e+06
10187.7 6.1494e+06 6.1467e+06 6.1520e+06
10342.9 2.5426e+06 2.5181e+06 2.5676e+06
12679.0 3.3433e+06 3.3374e+06 3.3492e+06
14144.6 3.9980e+06 3.8729e+06 4.1316e+06
16050.5 1.9010e+06 1.8941e+06 1.9081e+06
16058.6 6.4936e+06 6.4881e+06 6.4991e+06
16281.1 2.7856e+06 2.7785e+06 2.7928e+06
18215.4 2.2829e+06 2.2828e+06 2.2829e+06
18600.9 7.3657e+06 7.3568e+06 7.3746e+06
18775.6 5.8072e+05 5.8070e+05 5.8073e+05
23520.1 1.7679e+06 1.7538e+06 1.7822e+06
24658.4 8.3031e+05 8.3030e+05 8.3033e+05
27082.0 6.7421e+06 6.5672e+06 6.9266e+06
28810.1 6.1339e+06 6.1000e+06 6.1682e+06
28909.0 4.3651e+06 4.3651e+06 4.3652e+06
29001.7 9.2108e+06 9.1518e+06 9.2705e+06
29526.1 2.0948e+06 2.0765e+06 2.1133e+06
30463.0 1.5875e+06 1.5875e+06 1.5876e+06
31308.0 1.9777e+06 1.9777e+06 1.9778e+06
31915.8 2.5156e+06 2.5156e+06 2.5157e+06
2015-11-14 C
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1107.9 2.6382e+06 2.6360e+06 2.6404e+06
2539.9 4.3446e+06 4.3432e+06 4.3461e+06
4423.0 2.1544e+06 2.1534e+06 2.1553e+06
4490.2 2.7485e+05 2.7471e+05 2.7499e+05
6746.8 3.2717e+06 3.2705e+06 3.2728e+06
6757.6 6.3809e+06 6.3797e+06 6.3821e+06
6824.1 2.3227e+06 2.3215e+06 2.3238e+06
9501.8 4.6211e+06 4.6073e+06 4.6351e+06
10187.7 6.5099e+06 6.5090e+06 6.5109e+06
10342.9 2.6098e+06 2.5853e+06 2.6347e+06
12679.1 3.2362e+06 3.2276e+06 3.2449e+06
14144.6 4.1799e+06 4.1049e+06 4.2577e+06
16050.5 2.8054e+06 2.8002e+06 2.8106e+06
16058.6 8.1729e+06 8.1564e+06 8.1895e+06
16281.0 3.2400e+06 3.2399e+06 3.2401e+06
18600.9 7.8239e+06 7.7914e+06 7.8565e+06
18775.7 5.9520e+05 5.9518e+05 5.9522e+05
20255.0 1.0929e+06 1.0929e+06 1.0929e+06
21315.4 8.0568e+06 7.9081e+06 8.2112e+06
23520.0 7.7176e+05 7.7174e+05 7.7178e+05
24658.0 6.0199e+05 6.0197e+05 6.0200e+05
28810.0 6.1531e+06 6.0894e+06 6.2180e+06
29001.6 9.2904e+06 9.2285e+06 9.3531e+06
29526.1 2.0902e+06 2.0700e+06 2.1108e+06
31308.0 1.8177e+06 1.8177e+06 1.8177e+06
31916.0 2.4457e+06 2.4457e+06 2.4458e+06
32179.0 6.2208e+06 6.2207e+06 6.2209e+06
2016-11-14 D
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1107.8 2.5483e+06 2.5470e+06 2.5497e+06
2539.9 4.1479e+06 4.1464e+06 4.1493e+06
4423.0 2.1043e+06 2.1036e+06 2.1050e+06
4490.2 2.8179e+05 2.8161e+05 2.8196e+05
6746.7 3.1144e+06 3.1133e+06 3.1155e+06
6757.5 5.8249e+06 5.8241e+06 5.8257e+06
6761.4 5.8283e+06 5.8275e+06 5.8292e+06
6824.0 2.2641e+06 2.2633e+06 2.2649e+06
9501.8 4.6535e+06 4.6342e+06 4.6730e+06
10187.7 7.0149e+06 7.0125e+06 7.0173e+06
10342.8 2.6508e+06 2.6469e+06 2.6548e+06
12679.0 3.2619e+06 3.2587e+06 3.2650e+06
14144.6 3.7736e+06 3.7205e+06 3.8281e+06
16050.4 2.7995e+06 2.7862e+06 2.8129e+06
16058.5 8.0705e+06 8.0662e+06 8.0747e+06
16280.9 3.3065e+06 3.3007e+06 3.3123e+06
18600.8 7.9582e+06 7.9432e+06 7.9733e+06
18775.6 5.8072e+05 5.7705e+05 5.8443e+05
20254.7 1.2456e+06 1.2295e+06 1.2622e+06
21315.0 8.2763e+06 8.0802e+06 8.4823e+06
23519.9 1.4508e+06 1.4356e+06 1.4663e+06
28810.0 6.1795e+06 6.0919e+06 6.2696e+06
29001.4 9.6787e+06 9.6439e+06 9.7138e+06
29525.7 2.0513e+06 2.0512e+06 2.0513e+06
29564.2 4.8725e+06 4.8325e+06 4.9133e+06
31308.0 1.8091e+06 1.8090e+06 1.8091e+06
|
| Attachment 3: ringdowns.png
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|
|
188
|
Tue Nov 15 10:08:28 2016 |
Gabriele | General | Measurements | S1600475 |
2016-11-15
- 10:01am in chamber, balanced
- 10:03am, roughing pump on
- 10:21am turbo pump on
- 11:57am, excitation (3kV, 60s), quiet time before 1163275060, quiet time after 1163275168
- 2:21pm, excitation (3kV, 60s), quiet time before 1163283684, quiet time after 1163283793
- 3:27pm, pumps off
Results
2016-11-15 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1111.4 7.0708e+06 7.0599e+06 7.0816e+06
2548.7 1.5867e+06 1.5859e+06 1.5876e+06
4438.1 2.7798e+06 2.7786e+06 2.7810e+06
4502.1 3.2580e+05 3.2004e+05 3.3178e+05
6768.6 2.4624e+06 2.4597e+06 2.4652e+06
6780.9 7.9199e+06 7.9148e+06 7.9250e+06
6841.2 1.7197e+06 1.7187e+06 1.7206e+06
9532.6 2.0042e+06 2.0003e+06 2.0082e+06
10221.8 8.7455e+06 8.7384e+06 8.7526e+06
10370.9 4.7482e+05 4.7142e+05 4.7827e+05
12719.2 1.6940e+06 1.6924e+06 1.6956e+06
12840.1 5.4075e+05 5.3459e+05 5.4704e+05
14190.7 6.7551e+06 6.7451e+06 6.7651e+06
16112.3 7.9161e+06 7.8847e+06 7.9478e+06
18660.2 4.6512e+06 4.6392e+06 4.6633e+06
20318.5 1.2487e+06 1.2411e+06 1.2563e+06
21381.3 8.8036e+06 8.7663e+06 8.8412e+06
23749.2 4.6262e+05 4.6261e+05 4.6263e+05
24133.5 1.1367e+06 1.1367e+06 1.1367e+06
24174.5 1.1856e+06 1.1856e+06 1.1857e+06
24732.5 1.0615e+06 1.0615e+06 1.0615e+06
25308.0 2.8236e+06 2.8235e+06 2.8237e+06
27162.8 4.9157e+06 4.9061e+06 4.9254e+06
29011.1 1.7786e+06 1.7786e+06 1.7787e+06
29094.1 1.0590e+07 1.0533e+07 1.0647e+07
31820.6 1.1840e+06 1.1840e+06 1.1840e+06
32083.0 2.9047e+06 2.9047e+06 2.9048e+06
2016-11-15 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1111.4 5.3019e+06 5.2950e+06 5.3088e+06
2548.7 1.5590e+06 1.5539e+06 1.5642e+06
4438.1 1.8590e+06 1.8580e+06 1.8601e+06
4502.1 2.9799e+05 2.9699e+05 2.9901e+05
6768.6 1.5724e+06 1.5702e+06 1.5747e+06
6781.1 5.7773e+06 5.7746e+06 5.7800e+06
6841.3 1.2422e+06 1.2411e+06 1.2432e+06
9532.6 1.2514e+06 1.2433e+06 1.2597e+06
10221.8 5.6805e+06 5.6618e+06 5.6993e+06
10371.1 4.5285e+05 4.4967e+05 4.5607e+05
12719.3 1.0666e+06 1.0651e+06 1.0682e+06
12840.0 5.0460e+05 4.9209e+05 5.1776e+05
14190.7 4.2119e+06 4.1999e+06 4.2240e+06
16111.0 5.1330e+06 5.0960e+06 5.1705e+06
18089.0 9.7188e+05 9.7185e+05 9.7190e+05
18660.4 2.9670e+06 2.9374e+06 2.9973e+06
20318.7 8.0187e+05 7.9553e+05 8.0832e+05
21381.4 6.4885e+06 6.4474e+06 6.5302e+06
24133.0 8.2483e+05 8.2481e+05 8.2485e+05
24174.4 8.3029e+05 8.3027e+05 8.3030e+05
27163.0 3.6182e+06 3.6009e+06 3.6356e+06
28916.0 1.3350e+06 1.3349e+06 1.3350e+06
29094.3 8.9762e+06 8.9139e+06 9.0394e+06
29562.6 3.7546e+05 3.7545e+05 3.7547e+05
31820.5 1.0901e+06 1.0901e+06 1.0901e+06
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|
189
|
Tue Nov 15 10:35:11 2016 |
Gabriele | Mechanics | Daily Progress | Parts for laser polishing setup are here |
The parts all fit as expected. They're mounted on the stages.
  
|
|
190
|
Tue Nov 15 16:46:48 2016 |
Gabriele | General | Measurements | S1600476 |
2016-11-15
- 4:45pm in chamber, balanced
- 4:46pm, roughing pump on
- 4:56pm, turbo pump on
-
Excitations:
-
Quiet time before excitation: 1163303050
Excitation (1100 Hz) at 1163303082 (60 s)
1kHz excitation finished
Excitation (broad band) at 1163303144 (60 s)
Quiet time after excitation: 1163303206
-
Quiet time before excitation: 1163314036
Excitation (1100 Hz) at 1163314068 (60 s)
Excitation (broad band) at 1163314130 (60 s)
Quiet time after excitation: 1163314192
-
Quiet time before excitation: 1163325022
Excitation (1100 Hz) at 1163325054 (60 s)
1kHz excitation finished
Excitation (broad band) at 1163325116 (60 s)
Quiet time after excitation: 1163325178
2016-11-16
Results
2016-11-15 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1121.1 5.0944e+06 5.0905e+06 5.0982e+06
1140.0 1.1654e+06 1.1635e+06 1.1673e+06
2570.2 2.6712e+06 2.6699e+06 2.6724e+06
2608.7 9.7800e+05 9.7302e+05 9.8303e+05
4474.9 1.8629e+06 1.8624e+06 1.8634e+06
4538.1 3.2875e+05 3.2846e+05 3.2905e+05
6824.1 1.4823e+06 1.4812e+06 1.4834e+06
6840.2 7.3018e+06 7.2982e+06 7.3055e+06
6893.2 9.2821e+05 9.2713e+05 9.2929e+05
6962.9 4.9646e+04 4.9643e+04 4.9650e+04
9608.9 9.1232e+05 9.1133e+05 9.1332e+05
10308.9 5.1598e+06 5.0344e+06 5.2915e+06
10457.7 4.6941e+05 4.6647e+05 4.7239e+05
12819.2 1.0332e+06 1.0323e+06 1.0342e+06
12939.5 4.1373e+05 4.0825e+05 4.1935e+05
14310.4 3.0088e+06 3.0015e+06 3.0161e+06
16241.1 1.4065e+06 1.3908e+06 1.4227e+06
16251.8 5.8974e+06 5.8741e+06 5.9209e+06
16456.0 5.1136e+05 5.0798e+05 5.1478e+05
18816.0 2.8314e+06 2.7798e+06 2.8850e+06
18986.6 6.7793e+05 6.7791e+05 6.7795e+05
20432.7 1.5260e+05 1.5259e+05 1.5260e+05
20473.7 4.7475e+05 4.7474e+05 4.7476e+05
21560.7 5.5350e+06 5.4921e+06 5.5786e+06
24918.6 7.4993e+05 7.4992e+05 7.4995e+05
29247.5 9.5138e+05 9.5137e+05 9.5140e+05
29340.0 1.1583e+07 1.1439e+07 1.1730e+07
29822.7 8.1204e+05 8.1202e+05 8.1205e+05
2016-11-15 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1121.1 4.6065e+06 4.6038e+06 4.6091e+06
1140.0 8.0197e+05 8.0001e+05 8.0393e+05
2570.2 2.3051e+06 2.3035e+06 2.3067e+06
2608.7 9.1341e+05 9.1205e+05 9.1477e+05
4017.5 2.8194e+04 2.8190e+04 2.8197e+04
4475.0 1.6430e+06 1.6421e+06 1.6440e+06
4538.1 3.2912e+05 3.2849e+05 3.2976e+05
6824.1 1.2995e+06 1.2986e+06 1.3005e+06
6840.2 6.5726e+06 6.5697e+06 6.5756e+06
6893.2 8.6042e+05 8.5868e+05 8.6217e+05
6963.0 5.0409e+04 5.0405e+04 5.0412e+04
9609.0 1.0692e+06 1.0604e+06 1.0782e+06
10309.0 5.1393e+06 4.9409e+06 5.3542e+06
10457.7 4.6470e+05 4.4160e+05 4.9034e+05
12819.3 9.0580e+05 9.0410e+05 9.0750e+05
12939.6 4.0804e+05 3.9544e+05 4.2148e+05
14310.5 2.6132e+06 2.6107e+06 2.6158e+06
16241.2 1.2941e+06 1.2868e+06 1.3015e+06
16251.9 5.9674e+06 5.9536e+06 5.9812e+06
16456.2 7.3080e+05 7.2814e+05 7.3347e+05
18816.1 2.5342e+06 2.5282e+06 2.5402e+06
18987.0 6.3654e+05 6.3652e+05 6.3656e+05
21560.9 5.2433e+06 5.1712e+06 5.3174e+06
21610.4 2.3102e+06 2.3102e+06 2.3103e+06
24918.9 6.6504e+05 6.5864e+05 6.7156e+05
27388.0 4.7256e+06 4.6897e+06 4.7619e+06
29153.6 1.2791e+06 1.2790e+06 1.2791e+06
29248.0 8.4919e+05 8.4918e+05 8.4921e+05
29340.0 1.0910e+07 1.0363e+07 1.1519e+07
31810.6 3.0968e+06 3.0967e+06 3.0968e+06
2016-11-15 C
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1121.0 4.5968e+06 4.5942e+06 4.5994e+06
1140.0 8.9250e+05 8.9149e+05 8.9352e+05
2570.2 2.2831e+06 2.2817e+06 2.2845e+06
2608.7 8.9996e+05 8.9803e+05 9.0190e+05
4474.9 1.5002e+06 1.4983e+06 1.5021e+06
4538.1 3.2279e+05 3.2220e+05 3.2338e+05
6824.2 1.2882e+06 1.2858e+06 1.2906e+06
6840.3 6.5213e+06 6.5146e+06 6.5281e+06
6893.2 8.6464e+05 8.6311e+05 8.6617e+05
9608.9 1.0570e+06 1.0416e+06 1.0728e+06
10309.0 5.0851e+06 4.9675e+06 5.2084e+06
10457.8 4.5509e+05 4.4305e+05 4.6780e+05
12819.4 9.0619e+05 9.0128e+05 9.1116e+05
12940.0 4.2538e+05 4.2537e+05 4.2540e+05
14310.5 2.5765e+06 2.5717e+06 2.5814e+06
16241.2 1.2956e+06 1.2883e+06 1.3030e+06
16251.8 6.0038e+06 5.9865e+06 6.0211e+06
16456.3 7.4603e+05 7.4232e+05 7.4978e+05
18816.0 2.4942e+06 2.4808e+06 2.5077e+06
18987.0 6.4961e+05 6.4960e+05 6.4963e+05
20432.7 1.4994e+05 1.4993e+05 1.4994e+05
20474.1 4.3164e+05 4.3163e+05 4.3165e+05
21560.8 5.2562e+06 5.1891e+06 5.3251e+06
23792.3 1.9386e+06 1.9386e+06 1.9386e+06
24918.9 6.6629e+05 6.6628e+05 6.6631e+05
27387.9 4.7143e+06 4.6193e+06 4.8134e+06
29149.0 5.6268e+06 5.6267e+06 5.6269e+06
29248.0 8.5279e+05 8.5277e+05 8.5280e+05
29340.2 1.0748e+07 1.0565e+07 1.0937e+07
31811.0 3.0852e+06 3.0852e+06 3.0853e+06
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| Attachment 3: ringdowns.png
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| Attachment 8: ringdowns.png
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191
|
Wed Nov 16 09:35:59 2016 |
Gabriele | General | Measurements | S1600477 |
2016-11-16
- 9:34am in chamber, balanced
- 9:35am, roughing pump on
- 9:46am, turbo pump on
- Excitations:
-
Quiet time before excitation: 1163360707
Excitation (1100 Hz) at 1163360739 (60 s)
Excitation (broad band) at 1163360801 (60 s)
Quiet time after excitation: 1163360863
-
Quiet time before excitation: 1163368093
Excitation (1100 Hz) at 1163368125 (60 s)
Excitation (broad band) at 1163368187 (60 s)
Quiet time after excitation: 1163368249
-
3:31pm, pumps off
Results
2016-11-16 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1114.2 2.3007e+07 2.2987e+07 2.3027e+07
1133.4 2.2807e+06 2.2763e+06 2.2851e+06
2556.5 8.4325e+06 8.2252e+06 8.6504e+06
4452.8 8.8612e+06 8.8539e+06 8.8684e+06
4516.8 2.6142e+05 2.6001e+05 2.6284e+05
6792.4 6.6102e+06 6.6082e+06 6.6123e+06
6819.1 1.1027e+07 1.1024e+07 1.1031e+07
6864.1 1.9002e+06 1.8925e+06 1.9080e+06
9565.8 4.6820e+06 4.6648e+06 4.6993e+06
10275.1 1.5716e+07 1.5709e+07 1.5723e+07
12763.8 4.3417e+06 4.3388e+06 4.3447e+06
12886.1 6.6216e+05 6.5444e+05 6.7006e+05
14262.2 1.2383e+07 1.2361e+07 1.2405e+07
16179.4 5.6376e+06 5.6260e+06 5.6492e+06
16200.8 1.4003e+07 1.3963e+07 1.4043e+07
16388.5 4.0876e+06 4.0841e+06 4.0911e+06
17292.4 2.4283e+06 2.3986e+06 2.4587e+06
18752.8 1.3368e+07 1.3331e+07 1.3405e+07
18921.3 1.1843e+06 1.1815e+06 1.1871e+06
23710.2 1.1569e+07 1.1554e+07 1.1584e+07
23997.7 1.1157e+06 1.1157e+06 1.1158e+06
24816.8 2.5474e+06 2.5335e+06 2.5615e+06
25111.0 7.5175e+06 7.2921e+06 7.7572e+06
27302.7 1.4825e+07 1.4792e+07 1.4858e+07
29047.5 7.2879e+06 7.2272e+06 7.3495e+06
29140.0 4.9904e+06 4.9903e+06 4.9904e+06
29261.0 5.6779e+06 5.6778e+06 5.6779e+06
29673.0 4.5825e+05 4.5824e+05 4.5825e+05
29707.5 3.0382e+06 3.0381e+06 3.0382e+06
31013.6 8.4799e+05 8.4798e+05 8.4800e+05
31038.5 2.4742e+06 2.4742e+06 2.4742e+06
31914.0 6.6181e+06 6.4402e+06 6.8060e+06
2016-11-16 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1114.0 2.2032e+07 2.2016e+07 2.2049e+07
1133.4 1.9600e+06 1.9526e+06 1.9676e+06
2556.4 8.2944e+06 8.2588e+06 8.3304e+06
4452.9 8.1942e+06 8.1921e+06 8.1962e+06
4516.9 2.7235e+05 2.6914e+05 2.7564e+05
6792.4 6.0530e+06 6.0514e+06 6.0545e+06
6819.2 1.0600e+07 1.0597e+07 1.0602e+07
6864.1 1.8208e+06 1.8175e+06 1.8241e+06
9565.9 4.2971e+06 4.2755e+06 4.3189e+06
10275.1 1.4597e+07 1.4574e+07 1.4621e+07
12763.8 3.9316e+06 3.9287e+06 3.9344e+06
12886.2 6.4555e+05 6.3907e+05 6.5217e+05
14262.3 1.1328e+07 1.1324e+07 1.1331e+07
16179.5 5.2117e+06 5.1197e+06 5.3072e+06
16201.0 1.3620e+07 1.3572e+07 1.3668e+07
16388.6 3.7046e+06 3.6996e+06 3.7097e+06
17292.3 2.2071e+06 2.2070e+06 2.2072e+06
18921.6 1.2022e+06 1.1964e+06 1.2080e+06
21494.3 8.4330e+06 8.4082e+06 8.4580e+06
23710.4 1.0625e+07 1.0605e+07 1.0645e+07
23997.5 1.0698e+06 1.0697e+06 1.0698e+06
24817.0 2.3920e+06 2.3880e+06 2.3961e+06
25111.0 7.3811e+06 7.1248e+06 7.6564e+06
27302.9 1.3847e+07 1.3819e+07 1.3874e+07
29047.9 6.7327e+06 6.6911e+06 6.7749e+06
29673.0 4.4653e+05 4.4652e+05 4.4654e+05
29707.5 2.7395e+06 2.7224e+06 2.7569e+06
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192
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Wed Nov 16 09:43:25 2016 |
Gabriele, Alastair | General | Daily Progress | CO2 laser polishing setup |
Yesterday we assembled the lase polishing system. The Co2 laser power can be controlled using a waveplate, so we can turn on the laser at maximum power and let it stabilize, before actually turning up the power sent to the disk.
The beam is focused with a 10" focal length lens, and sent to the disk edge, poiting slightly upward to avoid hitting any other part of the disk.
The disk is moved with a combination of a linear and rotation stage, controlled with a MATLAB script. We tuned the translation and rotation speed so that the edge always moves at about 0.5 mm/s. Some refinement of the movimentation procedure will follow.
We tried the setup with one of the damaged samples, and the results are quite good.
More work this afternoon
 
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| Attachment 2: 2016-11-15_16.35.14.jpg
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193
|
Wed Nov 16 15:57:21 2016 |
Gabriele | General | Measurements | S1600481 |
2016-11-16
- 3:56pm, in chamber, balanced
- 3:57pm, roughing pump on
- 4:07pm, turbo pump on
- Excitations:
-
Quiet time before excitation: 1163383462
Excitation (1100 Hz) at 1163383494 (60 s)
Excitation (broad band) at 1163383556 (60 s)
Quiet time after excitation: 1163383618
-
Quiet time before excitation: 1163394448
Excitation (1100 Hz) at 1163394480 (60 s)
Excitation (broad band) at 1163394542 (60 s)
Quiet time after excitation: 1163394604
-
Quiet time before excitation: 1163405434
xcitation (1100 Hz) at 1163405466 (60 s)
Excitation (broad band) at 1163405528 (60 s)
Quiet time after excitation: 1163405590
2016-11-17
Results
2016-11-16 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1094.3 1.2707e+07 1.2695e+07 1.2720e+07
2510.4 6.6163e+06 6.5897e+06 6.6431e+06
2548.6 1.1938e+05 1.1913e+05 1.1964e+05
4373.1 4.5232e+06 4.5188e+06 4.5275e+06
4435.8 2.3382e+05 2.3366e+05 2.3398e+05
6671.1 3.5757e+06 3.5748e+06 3.5767e+06
6697.5 1.8817e+07 1.8807e+07 1.8827e+07
6744.3 2.8118e+06 2.7759e+06 2.8485e+06
9395.6 2.2865e+06 2.2775e+06 2.2955e+06
10093.3 1.1448e+06 1.1445e+06 1.1452e+06
10240.0 2.0555e+06 2.0452e+06 2.0660e+06
11475.6 8.4917e+04 8.4913e+04 8.4921e+04
12537.1 2.2927e+06 2.2865e+06 2.2989e+06
15891.2 2.2520e+06 2.2469e+06 2.2572e+06
15914.6 7.8120e+06 7.8077e+06 7.8163e+06
16099.4 1.7394e+06 1.7372e+06 1.7415e+06
18426.5 8.3448e+05 8.2560e+05 8.4355e+05
21118.1 7.2440e+06 7.2347e+06 7.2532e+06
24381.7 1.0371e+06 1.0342e+06 1.0400e+06
24699.4 2.2364e+06 2.2168e+06 2.2563e+06
25794.0 5.1477e+06 5.0369e+06 5.2635e+06
26149.5 1.0102e+06 1.0102e+06 1.0102e+06
26830.0 1.0373e+07 1.0152e+07 1.0604e+07
28636.6 3.6000e+06 3.5828e+06 3.6174e+06
28745.9 1.7322e+07 1.7311e+07 1.7334e+07
29887.3 1.1030e+07 1.0956e+07 1.1105e+07
30842.6 2.4718e+06 2.4380e+06 2.5066e+06
31616.4 7.0754e+05 7.0753e+05 7.0755e+05
31640.4 1.9543e+06 1.9543e+06 1.9544e+06
32236.4 2.9076e+06 2.8843e+06 2.9313e+06
2016-11-16 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1094.0 1.1214e+07 1.1205e+07 1.1222e+07
2510.4 5.5745e+06 5.5710e+06 5.5780e+06
2548.5 1.3663e+05 1.3573e+05 1.3755e+05
4373.0 3.7426e+06 3.7368e+06 3.7484e+06
4435.8 2.3376e+05 2.3329e+05 2.3423e+05
6671.1 2.9264e+06 2.9246e+06 2.9282e+06
6697.5 1.6992e+07 1.6933e+07 1.7052e+07
6744.2 2.3626e+06 2.3012e+06 2.4273e+06
9395.5 2.0654e+06 2.0480e+06 2.0831e+06
10093.2 1.0860e+06 1.0850e+06 1.0870e+06
10239.9 2.0757e+06 2.0666e+06 2.0849e+06
11475.6 8.7886e+04 8.7883e+04 8.7890e+04
12537.0 1.8327e+06 1.8228e+06 1.8426e+06
14012.0 5.2022e+06 5.1550e+06 5.2502e+06
15891.1 2.1796e+06 2.1738e+06 2.1855e+06
15914.4 9.3495e+06 9.3457e+06 9.3534e+06
16099.4 1.6351e+06 1.6122e+06 1.6588e+06
21118.0 7.0081e+06 6.9894e+06 7.0268e+06
24381.5 9.2600e+05 9.1906e+05 9.3305e+05
24700.0 2.0943e+06 2.0943e+06 2.0943e+06
26830.0 9.4362e+06 9.3340e+06 9.5407e+06
28544.3 3.8658e+06 3.8010e+06 3.9328e+06
28636.3 3.0021e+06 2.9410e+06 3.0657e+06
28745.5 1.6500e+07 1.6430e+07 1.6571e+07
29887.7 1.0548e+07 1.0517e+07 1.0579e+07
30843.0 2.1072e+06 2.0887e+06 2.1260e+06
31616.6 6.3649e+05 6.3647e+05 6.3650e+05
31640.6 1.5725e+06 1.5725e+06 1.5726e+06
32236.5 2.8396e+06 2.8396e+06 2.8397e+06
2016-11-16 C
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1094.0 1.0880e+07 1.0873e+07 1.0886e+07
2188.0 1.0548e+07 1.0120e+07 1.1012e+07
2510.3 5.5686e+06 5.5662e+06 5.5709e+06
2548.5 1.4731e+05 1.4406e+05 1.5070e+05
3949.0 1.7959e+04 1.7957e+04 1.7961e+04
4373.0 3.7404e+06 3.7350e+06 3.7459e+06
4435.7 2.3448e+05 2.3401e+05 2.3495e+05
6671.0 2.9331e+06 2.9319e+06 2.9343e+06
6697.5 1.6931e+07 1.6927e+07 1.6936e+07
6744.3 2.3960e+06 2.3820e+06 2.4101e+06
9395.5 2.1238e+06 2.1073e+06 2.1405e+06
10093.2 1.0588e+06 1.0583e+06 1.0592e+06
10239.8 2.2057e+06 2.1138e+06 2.3059e+06
11310.5 8.0028e+04 8.0025e+04 8.0032e+04
12537.0 1.9366e+06 1.8964e+06 1.9785e+06
14012.0 4.0122e+06 3.9559e+06 4.0700e+06
15891.3 2.2887e+06 2.2460e+06 2.3331e+06
15914.3 1.1138e+07 1.1136e+07 1.1140e+07
16099.3 1.7494e+06 1.7465e+06 1.7523e+06
21117.9 7.0869e+06 7.0802e+06 7.0935e+06
24381.4 9.2827e+05 9.2825e+05 9.2828e+05
24700.0 1.9847e+06 1.9846e+06 1.9847e+06
26829.7 9.1098e+06 8.9846e+06 9.2385e+06
28544.0 3.9652e+06 3.9652e+06 3.9653e+06
28746.0 1.5590e+07 1.5326e+07 1.5863e+07
29887.6 1.0657e+07 1.0505e+07 1.0813e+07
30843.4 2.0614e+06 2.0613e+06 2.0614e+06
32236.6 2.9582e+06 2.9062e+06 3.0122e+06
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194
|
Thu Nov 17 09:35:51 2016 |
Gabriele | General | Measurements | S1600483 |
2016-11-17
- 9:24am in chamber, balanced
- 9:35am roughing pump on
- 9:46am, turbo pump on
- Excitations
-
Quiet time before excitation: 1163451715
Excitation (1100 Hz) at 1163451747 (60 s)
Excitation (broad band) at 1163451809 (60 s)
Quiet time after excitation: 1163451871
-
Quiet time before excitation: 1163459101
Excitation (1100 Hz) at 1163459133 (60 s)
Excitation (broad band) at 1163459195 (60 s)
Quiet time after excitation: 1163459257
- 5:12pm, pumps off
Results
2016-11-17 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1110.6 5.2498e+06 5.2441e+06 5.2555e+06
1129.0 1.9008e+06 1.8988e+06 1.9028e+06
2546.3 2.5599e+06 2.5581e+06 2.5616e+06
2583.7 6.4098e+05 6.4022e+05 6.4174e+05
3600.5 1.4764e+06 1.4762e+06 1.4766e+06
4375.0 1.7752e+06 1.7646e+06 1.7859e+06
4433.3 1.7154e+06 1.7143e+06 1.7164e+06
4494.9 2.5500e+05 2.5476e+05 2.5523e+05
5266.0 2.1175e+06 2.1173e+06 2.1177e+06
6760.5 1.4261e+06 1.4249e+06 1.4273e+06
6778.3 7.4161e+06 7.3905e+06 7.4418e+06
6833.2 1.0592e+06 1.0586e+06 1.0597e+06
6893.1 5.8100e+04 5.8096e+04 5.8104e+04
9460.5 1.3366e+06 1.3366e+06 1.3367e+06
9518.8 1.2075e+06 1.2066e+06 1.2084e+06
9577.0 1.4045e+06 1.4044e+06 1.4046e+06
10361.5 9.2547e+05 9.1119e+05 9.4021e+05
12698.7 9.8384e+05 9.8240e+05 9.8528e+05
14185.0 3.7722e+06 3.6989e+06 3.8485e+06
16093.2 1.3155e+06 1.3120e+06 1.3190e+06
16105.8 4.9502e+06 4.8453e+06 5.0597e+06
16300.5 8.9537e+05 8.9535e+05 8.9540e+05
20280.0 4.6430e+05 4.6429e+05 4.6431e+05
21990.6 2.5384e+06 2.5383e+06 2.5384e+06
23585.0 2.3607e+06 2.3607e+06 2.3608e+06
24661.0 1.9657e+05 1.9657e+05 1.9658e+05
25335.0 2.1695e+06 2.1694e+06 2.1695e+06
25641.0 3.7421e+05 3.7420e+05 3.7422e+05
27148.6 5.0750e+06 5.0749e+06 5.0751e+06
28901.1 1.5001e+06 1.5001e+06 1.5002e+06
29471.0 6.6842e+06 6.6841e+06 6.6843e+06
29536.0 5.1655e+05 5.1655e+05 5.1656e+05
31209.5 6.6357e+05 6.6356e+05 6.6358e+05
31845.0 1.1993e+06 1.1992e+06 1.1993e+06
2016-11-17 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1110.5 5.1474e+06 5.1428e+06 5.1520e+06
1129.0 1.7959e+06 1.7941e+06 1.7977e+06
2487.7 2.2593e+06 2.2231e+06 2.2966e+06
2546.1 2.4932e+06 2.4917e+06 2.4948e+06
2583.6 6.7688e+05 6.7638e+05 6.7738e+05
2604.4 2.3700e+06 2.3388e+06 2.4020e+06
4374.7 1.4494e+06 1.4112e+06 1.4898e+06
4433.2 1.6734e+06 1.6723e+06 1.6745e+06
4494.8 2.5845e+05 2.5822e+05 2.5869e+05
6760.3 1.3915e+06 1.3904e+06 1.3925e+06
6778.0 7.2310e+06 7.2210e+06 7.2410e+06
6833.0 1.0473e+06 1.0469e+06 1.0478e+06
6893.0 5.8318e+04 5.8314e+04 5.8322e+04
9460.3 1.0963e+06 1.0962e+06 1.0963e+06
9518.4 1.1841e+06 1.1833e+06 1.1849e+06
9576.6 1.1146e+06 1.1145e+06 1.1146e+06
10217.0 8.1285e+05 8.1281e+05 8.1289e+05
10361.1 9.0908e+05 8.9989e+05 9.1846e+05
12698.2 9.8778e+05 9.7292e+05 1.0031e+06
14184.5 3.8766e+06 3.8765e+06 3.8767e+06
16092.6 1.2675e+06 1.2645e+06 1.2704e+06
16105.1 4.7982e+06 4.6884e+06 4.9132e+06
16299.9 8.4326e+05 8.4043e+05 8.4612e+05
20241.0 4.9087e+05 4.9086e+05 4.9088e+05
20279.4 4.9025e+05 4.9023e+05 4.9026e+05
21368.0 2.6590e+06 2.6589e+06 2.6591e+06
21643.5 3.3917e+05 3.3916e+05 3.3918e+05
23584.4 2.1538e+06 2.1538e+06 2.1539e+06
23734.6 3.5223e+05 3.5223e+05 3.5224e+05
27147.4 4.9544e+06 4.8874e+06 5.0233e+06
28899.9 1.4530e+06 1.4374e+06 1.4690e+06
29080.0 8.8363e+06 8.8362e+06 8.8365e+06
29522.4 4.6567e+05 4.6567e+05 4.6568e+05
30440.3 1.2458e+06 1.2457e+06 1.2458e+06
31211.0 6.6406e+05 6.6405e+05 6.6407e+05
|
|
195
|
Thu Nov 17 12:06:39 2016 |
Gabriele | General | Vacuum | Switching on the IGM moves the disk |
Here's a trend of the QPD signals when the IGM was turned on:
Turning it off does not bring the disk back. |
|
196
|
Thu Nov 17 12:08:28 2016 |
Gabriele | General | General | Remote control of air filters and roughing pump |
I installed a network controlled power strip. The two air filters and the roughing pump are connected to this power strip and can be controlled remotely.
I added new buttons to the main MEDM screen to control them remotely.
|
|
197
|
Thu Nov 17 17:54:13 2016 |
Gabriele | General | Measurements | S1600439 after CO2 laser polishing |
Previous measurments
- post annealing 144
- pre annealing 137
2016-11-17
- 5:52pm, in chamber, balanced
- 5:53pm, roughing pump on
- 6:04pm, turbo pump on
- 6:05pm, air filters off
- Excitations:
-
Quiet time before excitation: 1163480205
Excitation (1100 Hz) at 1163480237 (60 s)
Excitation (broad band) at 1163480299 (60 s)
Quiet time after excitation: 1163480361
-
Quiet time before excitation: 1163494791
Excitation (1100 Hz) at 1163494824 (60 s)
Excitation (broad band) at 1163494886 (60 s)
Quiet time after excitation: 1163494948
-
Quiet time before excitation: 1163509378
Excitation (1100 Hz) at 1163509411 (60 s)
Excitation (broad band) at 1163509473 (60 s)
Quiet time after excitation: 1163509535
2016-11-18
Results
2016-11-17 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1127.6 3.7205e+07 3.7099e+07 3.7311e+07
1149.8 5.7351e+05 5.7170e+05 5.7532e+05
2516.5 1.1828e+07 1.1490e+07 1.2186e+07
2574.8 1.3400e+07 1.3395e+07 1.3404e+07
2633.3 1.2628e+07 1.2459e+07 1.2802e+07
4474.7 2.4553e+07 2.4547e+07 2.4559e+07
4544.8 1.8667e+05 1.8641e+05 1.8693e+05
6759.0 1.8704e+07 1.8468e+07 1.8946e+07
6789.3 2.5840e+07 2.5830e+07 2.5850e+07
6817.2 1.9911e+07 1.9909e+07 1.9914e+07
6875.5 1.9155e+07 1.8915e+07 1.9401e+07
6896.6 3.0284e+06 3.0201e+06 3.0366e+06
9593.1 1.3325e+07 1.3319e+07 1.3332e+07
10242.1 1.3837e+07 1.3830e+07 1.3844e+07
10407.9 1.8996e+06 1.8632e+06 1.9374e+06
12793.6 1.1109e+07 1.1108e+07 1.1110e+07
12852.0 1.0545e+07 9.7561e+06 1.1473e+07
16145.3 3.0830e+06 3.0717e+06 3.0943e+06
16157.3 3.1104e+06 3.1087e+06 3.1120e+06
16421.2 9.5753e+05 9.5258e+05 9.6254e+05
18715.3 8.1385e+06 8.1309e+06 8.1461e+06
20416.5 2.5193e+05 2.5192e+05 2.5193e+05
21438.5 1.0088e+07 1.0036e+07 1.0141e+07
21741.0 2.0006e+05 2.0006e+05 2.0007e+05
23667.3 1.4606e+07 1.4548e+07 1.4665e+07
23826.4 2.5707e+05 2.5707e+05 2.5708e+05
23986.1 6.6046e+06 6.5724e+06 6.6371e+06
24849.9 3.1250e+06 3.1187e+06 3.1313e+06
25164.4 8.5725e+06 8.4512e+06 8.6973e+06
25462.9 4.0887e+06 4.0761e+06 4.1014e+06
25483.9 4.1145e+06 4.0637e+06 4.1666e+06
27245.8 1.4814e+07 1.4743e+07 1.4884e+07
28991.0 1.3488e+07 1.3478e+07 1.3497e+07
29095.2 5.2186e+06 5.2043e+06 5.2330e+06
29167.4 1.6466e+07 1.6231e+07 1.6707e+07
29749.1 5.0360e+05 5.0359e+05 5.0361e+05
30206.6 4.2957e+06 4.2020e+06 4.3937e+06
31045.1 3.1095e+06 3.1029e+06 3.1161e+06
31088.9 9.3908e+06 9.3757e+06 9.4060e+06
31710.0 2.4880e+06 2.4880e+06 2.4880e+06
31969.7 1.1411e+07 1.1372e+07 1.1451e+07
2016-11-17 B
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1127.9 3.7152e+07 3.7077e+07 3.7227e+07
2574.7 1.4429e+07 1.4424e+07 1.4434e+07
2633.0 1.6022e+07 1.4847e+07 1.7399e+07
4474.6 2.4432e+07 2.4419e+07 2.4445e+07
4544.7 1.9919e+05 1.9877e+05 1.9961e+05
6789.2 2.5907e+07 2.5888e+07 2.5927e+07
6817.0 1.9832e+07 1.9829e+07 1.9835e+07
6896.5 2.9655e+06 2.9546e+06 2.9765e+06
9593.0 1.3275e+07 1.3236e+07 1.3313e+07
10242.0 1.3491e+07 1.3479e+07 1.3502e+07
10407.7 1.8960e+06 1.8810e+06 1.9113e+06
12793.4 1.1592e+07 1.1590e+07 1.1594e+07
16144.7 4.6655e+06 4.5884e+06 4.7452e+06
16157.0 3.1237e+06 3.1216e+06 3.1258e+06
16420.9 1.3524e+06 1.3493e+06 1.3555e+06
17291.0 3.3682e+06 3.2925e+06 3.4475e+06
18714.9 8.1669e+06 8.1601e+06 8.1737e+06
20351.4 9.4653e+05 9.4188e+05 9.5123e+05
20416.2 1.1000e+06 1.0988e+06 1.1012e+06
21438.1 8.4404e+06 8.3969e+06 8.4845e+06
23666.9 1.4674e+07 1.4646e+07 1.4703e+07
23825.7 2.6272e+05 2.6271e+05 2.6272e+05
23987.0 5.6799e+06 5.6251e+06 5.7359e+06
24849.4 4.3992e+06 4.3821e+06 4.4165e+06
25165.0 9.0003e+06 8.8068e+06 9.2025e+06
25463.6 4.1230e+06 4.1124e+06 4.1336e+06
25484.8 4.1183e+06 4.0858e+06 4.1513e+06
28990.5 1.3604e+07 1.3550e+07 1.3658e+07
29094.6 5.9875e+06 5.9654e+06 6.0097e+06
29167.0 1.6703e+07 1.6387e+07 1.7032e+07
29748.5 5.6280e+05 5.6279e+05 5.6281e+05
30207.5 4.1567e+06 4.0927e+06 4.2228e+06
31045.8 3.2297e+06 3.2207e+06 3.2388e+06
31089.5 9.4448e+06 9.4187e+06 9.4709e+06
31711.0 2.4572e+06 2.4571e+06 2.4572e+06
31970.4 1.1648e+07 1.1605e+07 1.1691e+07
|
|
198
|
Thu Nov 17 17:59:44 2016 |
Gabriele, Alastair | General | General | CO2 laser polishing tests |
We improved the control software of the laser polishing system: now the rotation speed is large when the laser is missing the disk because of the flats.
We used S1600479 as a test. This substrate was marked as damaged and had a clear chip. It went thoruhg two different polishing runs
- CO2 power ~19.5 W, speed 0.5 mm/s
- CO2 power ~18.5 W, speed 0.25 mm/s
The second run was probably too slow, and we can see some kind of traces left on the main surface close to the edges
We then laser polished a good subtrate (S1600439) which was already measured before (137) and after annealing (144), with good Q values. This is a substrate from the first batch we received from Mark Optics. The polishing was done at ~ 18W and 0.5 mm/s.
Some pictures below:
 
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|
199
|
Fri Nov 18 09:27:26 2016 |
Gabriele | General | Measurements | CO2 polishing improves the Q !! |
The plot below shows that the Q values of S1600439 improved a lot after the CO2 laser polishing. About 15 modes have Q above 10e6. The first mode at 1kHz has a Q of 37e6, the highest ever measured so far!
Here's a comparison of the Q values of this sample before annealing, after annealing and after CO2 polishing.
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200
|
Fri Nov 18 11:39:59 2016 |
Gabriele | General | Measurements | S1600480 |
Note: marked at "D?" by Alena
2016-11-18
- 11:38am, in chamber, balanced
- 11:39am, roughing pump on
- 11:51am, turbo pump on
- 3:54pm, excitation (3kV), quiet time before 1163547289, quiet time after 1163548497
- Automated excitations:
-
Quiet time before excitation: 1163563312
Excitation (1100 Hz) at 1163563344 (60 s)
Excitation (broad band) at 1163563406 (60 s)
Quiet time after excitation: 1163563468
-
Quiet time before excitation: 1163577898
Excitation (1100 Hz) at 1163577931 (60 s)
Excitation (broad band) at 1163577993 (60 s)
Quiet time after excitation: 1163578055
-
Quiet time before excitation: 1163592485
Excitation (1100 Hz) at 1163592517 (60 s)
Excitation (broad band) at 1163592579 (60 s)
Quiet time after excitation: 1163592641
2016-11-20
Results
2016-11-18 A
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1104.1 1.0173e+07 1.0152e+07 1.0195e+07
1124.3 8.2131e+05 8.1929e+05 8.2333e+05
2532.6 5.0306e+06 5.0249e+06 5.0363e+06
2573.3 1.3847e+06 1.3808e+06 1.3886e+06
4411.2 2.8588e+06 2.8563e+06 2.8613e+06
4476.9 2.0843e+05 2.0731e+05 2.0956e+05
6729.4 2.6143e+06 2.6132e+06 2.6155e+06
6747.8 1.2395e+07 1.2374e+07 1.2417e+07
6806.2 2.1725e+06 2.1449e+06 2.2008e+06
6873.5 1.4735e+05 1.4563e+05 1.4911e+05
9478.1 2.0101e+06 2.0082e+06 2.0120e+06
10171.9 9.4754e+06 9.4682e+06 9.4827e+06
10325.5 2.9800e+06 2.9785e+06 2.9815e+06
12648.0 1.7468e+06 1.7413e+06 1.7524e+06
12773.7 5.3335e+05 5.2619e+05 5.4072e+05
14123.2 7.1655e+06 7.1632e+06 7.1678e+06
16018.0 2.2296e+06 2.2274e+06 2.2319e+06
16033.8 6.7662e+06 6.7549e+06 6.7775e+06
16242.7 1.5742e+06 1.5712e+06 1.5773e+06
17697.8 1.1028e+06 1.0837e+06 1.1227e+06
18281.0 1.5366e+06 1.5366e+06 1.5366e+06
18573.5 4.3588e+05 4.3587e+05 4.3589e+05
18745.4 3.4263e+05 3.4262e+05 3.4264e+05
20032.7 3.3234e+05 3.3233e+05 3.3235e+05
20150.9 1.1528e+06 1.1528e+06 1.1529e+06
20206.1 1.2661e+06 1.2631e+06 1.2691e+06
21282.5 1.0456e+07 1.0450e+07 1.0462e+07
21568.7 5.5263e+05 5.4626e+05 5.5915e+05
22166.5 2.8542e+06 2.8541e+06 2.8542e+06
23484.9 5.0281e+06 5.0189e+06 5.0374e+06
23636.0 4.3875e+05 4.3874e+05 4.3876e+05
24559.0 1.9874e+05 1.9873e+05 1.9874e+05
24598.4 1.3312e+06 1.2994e+06 1.3647e+06
25479.2 4.4672e+06 4.3821e+06 4.5558e+06
27041.0 4.9796e+06 4.9564e+06 5.0031e+06
28764.5 2.2975e+06 2.2895e+06 2.3055e+06
28862.1 2.7554e+06 2.7260e+06 2.7855e+06
29272.0 7.3791e+05 7.3790e+05 7.3792e+05
29453.0 3.7211e+05 3.7211e+05 3.7212e+05
29617.4 5.4367e+06 5.3598e+06 5.5159e+06
30529.7 1.9682e+06 1.9682e+06 1.9683e+06
31344.8 9.4048e+05 9.4047e+05 9.4050e+05
31970.0 4.2696e+06 4.2435e+06 4.2960e+06
32227.0 6.7855e+06 6.7854e+06 6.7856e+06
2016-11-18 B
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1104.0 1.0297e+07 1.0284e+07 1.0311e+07
1124.4 1.1668e+06 1.1652e+06 1.1684e+06
2532.6 5.0152e+06 5.0134e+06 5.0170e+06
2573.3 1.4606e+06 1.4576e+06 1.4637e+06
4411.3 3.3395e+06 3.3382e+06 3.3409e+06
4477.1 2.0944e+05 2.0896e+05 2.0991e+05
6729.7 2.6053e+06 2.6046e+06 2.6061e+06
6748.2 1.2388e+07 1.2379e+07 1.2398e+07
6806.5 2.1415e+06 2.1369e+06 2.1461e+06
6873.8 1.4706e+05 1.4619e+05 1.4794e+05
9478.4 2.0036e+06 2.0025e+06 2.0046e+06
10172.5 9.4094e+06 9.3186e+06 9.5020e+06
10326.0 2.9820e+06 2.9804e+06 2.9836e+06
12648.4 1.7268e+06 1.7241e+06 1.7295e+06
12774.1 4.9106e+05 4.7983e+05 5.0283e+05
14123.6 3.1322e+06 3.1310e+06 3.1335e+06
16018.6 2.2761e+06 2.2742e+06 2.2780e+06
16034.5 8.0306e+06 8.0250e+06 8.0361e+06
16243.3 1.5954e+06 1.5909e+06 1.5998e+06
18574.2 3.3307e+06 3.3155e+06 3.3460e+06
18746.1 9.1765e+05 9.1638e+05 9.1892e+05
20151.5 1.0945e+06 1.0635e+06 1.1273e+06
20206.9 1.2644e+06 1.2579e+06 1.2709e+06
21283.4 1.0704e+07 1.0692e+07 1.0717e+07
21569.6 5.5770e+05 5.5558e+05 5.5983e+05
23485.8 5.0910e+06 5.0796e+06 5.1023e+06
24599.2 1.2773e+06 1.2665e+06 1.2883e+06
25477.5 4.3947e+06 4.3268e+06 4.4648e+06
25828.0 7.4575e+05 7.2022e+05 7.7315e+05
27042.2 4.9480e+06 4.9335e+06 4.9625e+06
28765.8 2.2507e+06 2.2298e+06 2.2721e+06
28863.2 2.7105e+06 2.6968e+06 2.7243e+06
28961.6 8.5083e+06 8.4642e+06 8.5529e+06
29615.6 5.4281e+06 5.2865e+06 5.5774e+06
30528.4 1.9676e+06 1.9223e+06 2.0150e+06
31343.4 9.0249e+05 8.8999e+05 9.1536e+05
31968.6 4.2914e+06 4.2817e+06 4.3012e+06
2016-11-18 C
 
 
% Freq Q Q (C.I. 95%) Q (C.I. 95%)
1104.1 1.0082e+07 1.0063e+07 1.0100e+07
1124.5 1.3397e+06 1.3366e+06 1.3427e+06
2532.8 4.9558e+06 4.9513e+06 4.9604e+06
2573.5 1.4059e+06 1.3996e+06 1.4122e+06
4411.6 3.1148e+06 3.1116e+06 3.1180e+06
4477.4 2.1088e+05 2.1055e+05 2.1121e+05
6730.2 2.5865e+06 2.5850e+06 2.5881e+06
6748.7 1.2747e+07 1.2486e+07 1.3019e+07
6807.0 2.1437e+06 2.1251e+06 2.1626e+06
6874.2 1.5494e+05 1.5375e+05 1.5614e+05
9479.1 2.0187e+06 1.9656e+06 2.0748e+06
10173.2 9.4877e+06 9.4764e+06 9.4990e+06
10326.7 3.0116e+06 3.0106e+06 3.0127e+06
12649.3 1.7115e+06 1.6986e+06 1.7247e+06
14124.9 9.1986e+05 9.1825e+05 9.2148e+05
16019.8 2.2901e+06 2.2890e+06 2.2913e+06
16035.7 8.1365e+06 8.1202e+06 8.1529e+06
16244.6 1.5627e+06 1.5520e+06 1.5735e+06
18575.7 5.0190e+06 5.0085e+06 5.0296e+06
18747.6 2.2873e+06 2.2850e+06 2.2896e+06
20153.0 1.1379e+06 1.1286e+06 1.1474e+06
20208.4 1.2843e+06 1.2797e+06 1.2891e+06
21285.1 1.0850e+07 1.0800e+07 1.0899e+07
23487.6 5.1931e+06 5.1699e+06 5.2165e+06
23638.5 4.6983e+05 4.5937e+05 4.8078e+05
24562.0 2.0605e+05 1.9793e+05 2.1488e+05
25474.4 4.3828e+06 4.2782e+06 4.4926e+06
27044.4 4.4216e+06 4.4140e+06 4.4293e+06
28767.9 2.2400e+06 2.2194e+06 2.2610e+06
28865.5 2.4306e+06 2.3822e+06 2.4810e+06
28963.9 8.4171e+06 8.3301e+06 8.5059e+06
29425.5 1.2180e+06 1.1936e+06 1.2434e+06
30525.7 1.9877e+06 1.9649e+06 2.0110e+06
31340.9 9.0879e+05 8.9734e+05 9.2053e+05
31965.9 4.3188e+06 4.3004e+06 4.3374e+06
32222.9 6.8476e+06 6.7375e+06 6.9614e+06
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201
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Fri Nov 18 15:48:09 2016 |
Gabriele | General | Measurements | Microscope inspection of CO2 polished samples |
S1600470
For reference, this sample has not been CO2 polished, but it has been annealed and measured. It has quite low Q values. Here are some images of the edges. The first two are taken with light from above. In the second one there some clear red residual, which is also visible as a coloration with the naked eye. The microroughness and some larger defect are well visible.
 
The following images instead are taken with light from below. The red residual is even more evident, and some traces probably due to the machining are clearly visible.
 
S1600479
This sample has been laser polished with a double pass (first at 0.5 mm/s, second at 0.25 mm/s). The first two images are taken with light from above: they are not very clear because of the specular reflection of the lamps. This already indicates that the surface is much smoother. Some defects (bubbles?) are visible close to the main surfaces.
 
The surface quality is more apparent in the following pictures, taken with light from below. The second one is taken where there is a chip in the main surface, and indeed one can see the shading due to the light distortion iduced by the chip. Also a cluster of "bubbles" is clearly visible there.
 
S1600462
This was our first polishing test. It is interesting because the laser tripped during the procedure, so we have a neat transition from the original surface to the polished one. First image taken with light from above, second with light from below
 
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| Attachment 9: S1600462_3.png
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