| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2438
|
Mon Dec 21 07:30:58 2009 |
??? | Update | ASS | OAF Model update and build instructions | What does OAF stand for? The entry
doesn't say that. Also the acronym is not
in the abbreviation page of the wiki. |
|
|
2437
|
Mon Dec 21 02:22:31 2009 |
rana, jenne, kiwamu | Update | ASS | OAF Model update and build instructions | This allowed measuring the MC1 -> MCL
TF finally. Its mostly flat. Data saved as
Templates/OAF/OAF-MCLTF.xml |
|
|
2436
|
Mon Dec 21 01:14:08 2009 |
rana | Summary | Electronics | Noise measurement of the Rai Weiss FET preamp box | I shorted the input to the box and
then put its output into the SR560 (low noise,
G = 100, AC). I put the output of the SR560 |
|
|
2435
|
Sun Dec 20 23:42:44 2009 |
Jenne | Update | IOO | New Input Mode Matching Telescope | I've got most of the new Mode Matching
Telescope figured out. The scripts
and an example result are at: MMT09 |
|
|
2434
|
Sun Dec 20 21:39:40 2009 |
rana, jenne, kiwamu | Update | ASS | OAF Model update and build instructions | After a lot of headache, I
got the OAF working again - read on for details.....................
|
|
|
2433
|
Sun Dec 20 14:34:24 2009 |
Koji | Update | SUS | ETMY watchdog tripped Sunday 5:00AM local | It seemed that the ETMY watchdog tripped
early Sunday morning.
The reason is not known. I just looked |
|
|
2432
|
Sat Dec 19 14:33:25 2009 |
Koji | Configuration | Computers | PDFlib lite / gnuplot 4.2.6 on Rosalba/Allegra | In order to enable 'set terminal pdf' in
gnuplot on Rosalba/Allegra, I installed PDFlib
lite and gnuplot v4.2.6. to them. |
|
|
2431
|
Fri Dec 18 15:40:33 2009 |
Koji | Update | IOO | MC2 spot centered / MCT QPD issue | This afternoon I felt like saying hello
to the input mode cleaner. So I decided to
center the spot on MC2. |
|
|
2430
|
Thu Dec 17 23:27:23 2009 |
rana | Update | PEM | Ranger Noise: sim w. Rai FET box as readout | I have started measuring the low frequency
noise of the FET front end + LT1128 low noise
preamp from Rai Weiss. It has a very low |
|
|
2429
|
Thu Dec 17 19:03:14 2009 |
Alberto | HowTo | Computers | Nodus sluggish |
|
|
|
2428
|
Thu Dec 17 17:13:50 2009 |
Alberto | Omnistructure | Environment | STACIS stuff | One of the electronics benches is currently
occupied by the STACIS equipment.
We
need that table If no one is working on the |
|
|
2427
|
Thu Dec 17 09:30:08 2009 |
Alberto | HowTo | Computers | Nodus sluggish | The elog has been quite slow for the last
two days. The cause is nodus, that has been
slowing down the access to it. |
|
|
2426
|
Thu Dec 17 07:47:29 2009 |
Jenne | Update | WienerFiltering | L1 DARM Static Wiener Filtered data | This surface plot is the same as the previous
one, with a little more data than I had previously.
|
|
|
2425
|
Thu Dec 17 02:57:08 2009 |
Jenne | Update | WienerFiltering | L1 DARM Static Wiener Filtered data | This is perhaps best put in the LLO elog,
but I'm not yet a 'person' there, so I can't
write to their elog (yet another thing for |
|
|
2424
|
Wed Dec 16 20:29:08 2009 |
rana | Update | COC | ETM Coating study | This plot shows the Transmission for 532
and 1064 nm as a function of the thickness
of the SiO2 layer. |
|
|
2423
|
Wed Dec 16 11:55:47 2009 |
rana | Update | ABSL | Universal PDH Box Servo Filters |
To me, they both look stable.
I guess that the phase has to go to -180 |
|
|
2422
|
Wed Dec 16 11:46:25 2009 |
Alberto | Update | ABSL | Absl PLL Open Loop Gain | Yesterday I measured the Open Loop Gain
of the PLL in the absolute length experiment.
The servo I used was that of the old Universal |
|
|
2421
|
Wed Dec 16 11:21:20 2009 |
Alberto | Update | ABSL | Universal PDH Box Servo Filters | Yesterday I measured the shape of the
servo filter of both the old and the new
Universal PDH boxes.
Here they |
|
|
2420
|
Tue Dec 15 21:39:34 2009 |
Alberto | Update | ABSL | brief summary of this afternoon's measurements | I took measurements of the open loop
gain of the AbsL PLL with the old Universal
PDH Box.
I Also measured the |
|
|
2419
|
Tue Dec 15 17:16:22 2009 |
Koji | Update | General | Table distance measurements | During the vent we have tried to measure
the distances of the optical tables for BS-ITMX
and BS-ITMY. |
|
|
2418
|
Tue Dec 15 05:29:31 2009 |
Alberto | Update | General | Arm Cavity Poles measured again after cleaning the optics last week |
The Y arm cavity pole moved
down by 130 Hz, whereas the X arm moved by |
|
|
2417
|
Tue Dec 15 00:02:10 2009 |
rana | Update | PEM | Noise of the Ranger SS-1 Seismometer | I wanted to see what the noise of the Ranger
seismometer should be. I used LISO and file
ranger.fil (in our LISO SVN) to calculate |
|
|
2416
|
Mon Dec 14 22:32:56 2009 |
Koji | Update | General | Arm cavity loss ~ result | I like to ask someone to review the calculation
on the wiki. |
|
|
2415
|
Mon Dec 14 19:33:04 2009 |
Alberto | Update | General | Arm Cavity Poles measured again after cleaning the optics last week | Last week we vented and we cleaned the
main optics of the arm cavities.
I measured the frequency of the cavity |
|
|
2414
|
Mon Dec 14 15:18:18 2009 |
Jenne | Update | lore | armLoss script ran....results confidential | I ran the armLoss script for both Xarm
and Yarm. The results are confidential,
pending the completion of Alberto's cavity |
|
|
2413
|
Mon Dec 14 14:16:14 2009 |
Alberto | Update | Treasure | LOCKSTARS |
|
|
|
2412
|
Mon Dec 14 13:17:33 2009 |
rob | Update | Treasure | We are *ROCKSTARS* ! IFO is back up |
|
|
|
2411
|
Mon Dec 14 13:08:33 2009 |
Koji | Update | Treasure | LOCKSTARS | Good job guys. What I did was
saying "I don't know", "Maybe", |
|
|
2410
|
Mon Dec 14 12:13:52 2009 |
Jenne | Update | Treasure | We are *ROCKSTARS* ! IFO is back up | [Jenne, Kiwamu, Koji]
We |
|
|
2409
|
Mon Dec 14 11:21:23 2009 |
steve | Omnistructure | Environment | Ants in the coffee maker |
We still had some ants visiting
the sink area this morning. These ants seem |
|
|
2408
|
Mon Dec 14 00:37:28 2009 |
Koji | Omnistructure | Environment | Ants in the coffee maker | I made a short stop at the 40m on Sunday
night and found that hundreds ants are in |
|
|
2407
|
Sun Dec 13 23:18:09 2009 |
rana | Summary | IOO | Displacement noise on the PSL table | For the Laser Gyro, I wondered how much
mechanical noise we might get with a non-suspended
cavity. My guess is that the PMC is better |
|
|
2406
|
Sun Dec 13 20:50:45 2009 |
rana | Summary | IOO | Mach Zender Calibration | I ramped the MZ PZT (with the loop disabled
on the input switch) to calibrate it. Since
the transmission has been blocked, I used |
|
|
2405
|
Sun Dec 13 17:43:10 2009 |
kiwamu | Update | SUS | free swinging spectra (vacuum) | The free swinging spectra of ITMs, ETMs,
BS, PRM and SRM were measured under the vacuum-condition.
The attachment are measured spectra. |
|
|
2403
|
Sat Dec 12 07:36:56 2009 |
rana | HowTo | Electronics | How to Measure the Length of a Cable: Interferometry | Need to measure the length |
|
|
2402
|
Fri Dec 11 19:51:13 2009 |
Alberto | Configuration | LSC | 166 LO Disconnected |
|
|
|
2401
|
Fri Dec 11 17:36:37 2009 |
kiwamu | Update | General | IFO restoring plan | Alberto,
Jenne, Kiwamu
|
|
|
2400
|
Fri Dec 11 15:21:40 2009 |
steve | Configuration | VAC | pumpdown#67 is completed |
|
|
|
2399
|
Fri Dec 11 14:19:22 2009 |
Koji | Configuration | VAC | pumpdown has started | Wait,
Wait, Wait. |
|
|
2398
|
Fri Dec 11 14:12:32 2009 |
rana | Configuration | LSC | 166 LO Disconnected |
Seems like very strange cable
loss numbers. The Heliax is lossier than |
|
|
2397
|
Fri Dec 11 13:18:17 2009 |
Alberto | Configuration | VAC | pumpdown has started |
|
|
|
2396
|
Fri Dec 11 11:42:26 2009 |
Alberto | Configuration | LSC | 166 LO Disconnected |
|
|
|
2395
|
Fri Dec 11 09:30:09 2009 |
Koji | Configuration | LSC | 166 LO Disconnected | They
must not be dBm, must be dB
|
|
|
2394
|
Fri Dec 11 08:35:04 2009 |
steve | Configuration | VAC | pumpdown has started | Oplev positions before and after drag wiped
arm TMs as of yesterday. Slow-mode pumpdown
has started with 3/4 turn opened RV1 |
|
|
2393
|
Thu Dec 10 18:31:44 2009 |
Alberto | Configuration | LSC | 166 LO Disconnected |
|
|
|
2392
|
Thu Dec 10 18:27:48 2009 |
Mott | Update | General | Updated R & T Measurements | Attached are updated plots of the T&R
Measurements for a variety of mirrors, and
diagrams for the setup used to make the measurements. |
6x |
|
2391
|
Thu Dec 10 17:13:36 2009 |
kiwamu | Update | SUS | Free swiging spectra under the atmospheric pressure | The free swinging spectra of ITMs, ETMs,
BS, PRM and SRM were measured last night
in order to make sure that nothing wrong |
|
|
2389
|
Thu Dec 10 17:05:21 2009 |
Alberto | Configuration | LSC | 166 MHz LO SMA-to-Heliax connection repaired | I replaced the SMA end connector for the
166 MHZ Local Oscillator signal that goes
to the back of the flange in the 1Y2 rack. |
|
|
2388
|
Thu Dec 10 16:51:35 2009 |
steve | Update | VAC | pumpdown will start tomorrow morning | The vacuum system is at 760 torr
All chambers with doors on and their annuloses
are pumped down. |
|
|
2387
|
Thu Dec 10 15:18:55 2009 |
Jenne | Update | VAC | seisBLRMS | last 20 days - including the pounding from
next door |
|