| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2663
|
Tue Mar 9 09:04:20 2010 |
steve | Update | PEM | keep vacuum chamber closed | They are sandblasting at CES: our particle
counts are very high. DO NOT OPEN CHAMBER! |
|
|
2667
|
Thu Mar 11 15:24:51 2010 |
steve | Metaphysics | Environment | IFO was well protected |
|
|
|
2670
|
Fri Mar 12 17:08:22 2010 |
steve | Configuration | VAC | bg-RGAscan at d18 | RGA scan of rga-region only at day 18
This is the back ground of the rga with some
calibration gas. |
|
|
2673
|
Mon Mar 15 09:43:47 2010 |
steve | Update | PEM | more sandblasting today | Do not open IFO vacuum envelope today!
They are sandblasting again at CES |
|
|
2674
|
Mon Mar 15 16:39:36 2010 |
steve | Update | PEM | Guralp2 centered |
|
|
|
2677
|
Tue Mar 16 09:37:30 2010 |
steve | Update | SUS | eq 4.4 seen by oplevs and osems | The oplev plots clearly show the alignment
effect of this eq. |
|
|
2678
|
Thu Mar 18 08:49:51 2010 |
steve | Update | PEM | Guralp2 centered again ? |
Someone adjusted the Guralp2 mass
position last night?? |
|
|
2694
|
Mon Mar 22 11:37:09 2010 |
steve | Update | PEM | jackhammering | There was more jackhammering this morning
just about 20 ft north-west of the beamsplitter
chamber, outside. |
|
|
2699
|
Tue Mar 23 09:37:36 2010 |
steve | Update | IOO | vac envelope has to be sealed as antproof for overnight |
|
|
|
2701
|
Tue Mar 23 10:11:13 2010 |
steve | Update | PEM | small air cond unit failed yesterday | Old control room air condition failed yesterday
around noon. It was blowing 80-85F hot air
for about 2-3 hours at racks 1Y4-7 and the |
|
|
2713
|
Thu Mar 25 09:07:08 2010 |
steve | Update | PEM | Guralp2 x problem is back |
|
|
|
2716
|
Fri Mar 26 10:48:35 2010 |
steve | Update | SAFETY | safety glasses measured | Safety
glasses 1064 nm transmission measured at
~200 mW level. They are all good. |
|
|
2742
|
Wed Mar 31 15:31:53 2010 |
steve | Update | PSL | Reference Cavity RF PD base upgraded |
|
|
|
2743
|
Wed Mar 31 16:31:44 2010 |
steve | Update | PEM | Guralp interface box turned off |
|
|
|
2765
|
Mon Apr 5 08:43:48 2010 |
steve | Update | PEM | earthquake mag 7.2 | Large
earthquake shakes Baja California, Mexico
and 6 over Magnitude 5 aftershakes follow. |
|
|
2769
|
Mon Apr 5 11:39:41 2010 |
steve | Update | SUS | ITM-south installation |
|
|
|
2773
|
Mon Apr 5 14:10:06 2010 |
steve | Update | SUS | sus damping restored |
|
|
|
2778
|
Wed Apr 7 09:00:01 2010 |
steve | HowTo | PEM | prepare to open chamber | In order to minimize the diffusion of more
dust particles into the vented IFO vacuum
envelope |
|
|
2801
|
Thu Apr 15 14:47:28 2010 |
steve | Update | Electronics | 25MHZ oscillation of HP4195A | The 1979 vintage RF spectrum analyzer HP4195A
sn2904J01587 shipped out for repair
today to http://www.avalontest.com |
|
|
2812
|
Tue Apr 20 07:48:42 2010 |
steve | Update | PSL | ion pump HV turned on | We found ref-cavity HV was off yesterday
afternoon. It was turned back on. |
|
|
2813
|
Tue Apr 20 08:00:52 2010 |
steve | Update | SUS | ETMY damping restored | ETMY sus damping was restored |
|
|
2814
|
Tue Apr 20 09:15:15 2010 |
steve | Summary | SAFETY | annual safety audit | |
|
|
2815
|
Tue Apr 20 10:55:10 2010 |
steve | Bureaucracy | SAFETY | Kevin Kuns received safety training | The 40m's new undergrad Kevin Kuns was
introduced to 40m safety hazards. He is new
and needs guidance as specially with 2W laser |
|
|
2831
|
Thu Apr 22 09:03:54 2010 |
steve | Omnistructure | PEM | aircondition can not be turned off | Koji and I wanted to turn off the IFO-room
AC so the wind would not blow on MC1-3. We
could not. The switches were probably bypassed |
|
|
2842
|
Mon Apr 26 11:13:28 2010 |
steve | Omnistructure | PEM | AC on/off is working |
|
|
|
2919
|
Wed May 12 09:16:29 2010 |
steve | Update | Green Locking | Reflection from ETM and ITM ! |
Now I know why Rana was wearing
his bright green pants yesterday. It is nice |
|
|
2930
|
Fri May 14 08:18:46 2010 |
steve | Update | Green Locking | Reflection from ETM and ITM ! | I stopped AWG 1 Hz drive to ITMYs.
ITMXe was also driven or oscillating. ITMXe
damping was off, so I turned it on. It did |
|
|
2939
|
Mon May 17 10:57:16 2010 |
steve | Configuration | SUS | damping restored to ETMYs | ETMY-south sus damping was restored |
|
|
2943
|
Tue May 18 11:54:29 2010 |
steve | Configuration | SAFETY | psl mechanical shutter is not working | As we learned yesterday, the PSL laser
power out put mechanical shutter is not working
in the remote mode. It only works in local |
|
|
2947
|
Tue May 18 15:09:02 2010 |
steve | Configuration | SAFETY | PSL output shutter in order again |
|
|
|
2965
|
Fri May 21 08:28:29 2010 |
steve | Configuration | VAC | TP3 turned off |
|
|
|
2970
|
Fri May 21 16:37:35 2010 |
steve | Configuration | VAC | tp3's drypump replaced | Bob replaced the tipseal in an other drypump
and I swapped it in. TP3 turbo is running
again, it's foreline pressure is 40 mTorr. |
|
|
2972
|
Mon May 24 07:53:57 2010 |
steve | Configuration | PEM | air cond. just turned ON | IFO room temp 27.5C , Please remember to
turn AC back on ! |
|
|
3024
|
Tue Jun 1 11:47:14 2010 |
steve | Update | PEM | lead balls on concrete |
|
|
|
3025
|
Tue Jun 1 15:51:42 2010 |
steve | Update | PEM | foam box for good thermal stability | This box was made to provide good
thermal stability for seismometer calibration.
There is an inner solid shell of 0.064" |
|
|
3033
|
Wed Jun 2 07:54:55 2010 |
steve | Update | MOPA | laser headtemp is up | Is the cooling line clogged? The chiller
temp is 21C See 1 and 20 days plots |
|
|
3037
|
Wed Jun 2 18:09:32 2010 |
steve | Update | PEM | seismometers off of linoleum floor | Steve for Nancy,
Seismometer interface box ac power
was turned off, Guralps disconnected and |
|
|
3039
|
Wed Jun 2 21:21:43 2010 |
steve | Update | PEM | seismometers off of linoleum floor |
|
|
|
3058
|
Wed Jun 9 10:31:13 2010 |
steve | Update | SAFETY | safety training | Nancy and Sharmila received introductory
early bird surf safety training for the 40m
lab. |
|
|
3108
|
Wed Jun 23 17:48:16 2010 |
steve | Update | MOPA | laser head temp | The laser chiller temp is fluctuating and
the power output is decreasing. See 120 days
plot. |
|
|
3130
|
Tue Jun 29 08:41:06 2010 |
steve | Update | MOPA | MOPA is dead | I found the laser dead this morning.
The crane people are here to unjam
it. |
|
|
3150
|
Wed Jun 30 18:16:55 2010 |
steve | Update | SAFETY | SURF safety training 2010 | 40m SURFs Razib Obaid, Nancy Aggarwal,
Unknown Bearded SMURF, Megan |
|
|
3152
|
Thu Jul 1 10:26:34 2010 |
steve | Configuration | VAC | pd68 at vacuum normal state | Slow pump down _pd68 has reached the vacuum
normal state. CC4_Rga region is pumped
now. The RGA is still off. |
|
|
3192
|
Mon Jul 12 10:23:51 2010 |
steve | Update | PEM | air condition maintenance is today | The AC filters will be checked and/or replaced
today. This means the AC will be off for
sort periods of time. Temperature and particle |
|
|
3202
|
Tue Jul 13 10:02:30 2010 |
steve | Update | MOPA | laser power is dropping slowly | I have just removed an other 400 cc of
water from the chiller. I have been
doing this since the HTEMP started fluctuating. |
|
|
3248
|
Tue Jul 20 08:04:31 2010 |
steve | Configuration | VAC | slow vent has started | The PSL shutter was closed. The beam path
blocked two places. High voltage power supplies
to IOO and OMC PZT were checked to be off. |
|
|
3266
|
Thu Jul 22 08:07:27 2010 |
steve | Update | VAC | vent finished |
|
|
|
3272
|
Fri Jul 23 08:15:59 2010 |
steve | Update | PSL | ref cavity ion pump | The ref cavity ion pump was running at
7.7kV instead of 5kV
This Digitel SPC-1 20 l/s ion pump |
|
|
3277
|
Fri Jul 23 15:32:02 2010 |
steve | Update | PEM | control room AC set point changed | The control room temp is warmer than usual.
The heat exchanger Office Pro 18 set point
was lowered from 70 to 68F yesterday. |
|
|
3279
|
Fri Jul 23 16:00:35 2010 |
steve | Update | SAFETY | crane load test tomorrow | All 3 cranes will be load tested at 1 ton
tomorrow morning between 9am and 2pm
Do not come to the 40m lab during |
|