| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
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1232
|
Fri Jan 16 11:33:59 2009 |
rob | Configuration | DMF | DMF start script | [quote]I tried to restart the DMF using the
start_all script: http://dziban.ligo.caltech.edu:40/40m/280
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1236
|
Fri Jan 16 18:45:20 2009 |
Yoichi | Configuration | IOO | MC_L gain increased by a factor of 2 | Rana, Yoichi
Since we fixed the FSS AOM double-pass, which |
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1244
|
Thu Jan 22 11:54:09 2009 |
Alberto | Configuration | PSL | Mach Zehnder Output Beam QPD | I rotated by 180 degrees the 10% beam splitter
that it is used to fold the beam coming from
the Mach Zehnder (directed to the MC) on |
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1252
|
Sat Jan 24 11:50:24 2009 |
Alberto | Configuration | Electronics | Photodiode Filters' Transfer Functions | I found an elog entry by Jenne with the measurement
of the transfer functions of the filters
of some of our photodetectors. Since it might |
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1253
|
Mon Jan 26 14:51:54 2009 |
josephb | Configuration | VAC | | We need a new RS-232 to Ethernet bridge in
order to interface properly with the new
RGA. The RGA has a fixed baud rate of 28.8k, |
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1258
|
Thu Jan 29 16:50:53 2009 |
josephb, alberto | Configuration | Computers | Megatron fixed | The warning light on megatron and the fans
at full speed were fixed by not just power
cycling, but completely unplugging megatron |
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1261
|
Fri Jan 30 17:30:31 2009 |
Alberto, Josephb | Configuration | Computers | New computer Ottavia set up | Alberto, Joseph,
Today we installed the computer that some |
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1263
|
Mon Feb 2 12:35:22 2009 |
Alberto | Configuration | General | New Elog 2.7.5 in Service on Nodus | I moved the 40m, the Adhikari Lab and the
SUS elogs from Dziban (located in Millikan's
6th floor) to our gateway server Nodus. In |
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1264
|
Mon Feb 2 17:25:44 2009 |
Alberto | Configuration | General | Some little problem with the new elog | For some reason the new elog does not look
exactly like it should.
1) Some of the
editing features are not available.
2) |
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1265
|
Mon Feb 2 18:32:54 2009 |
Alberto | Configuration | General | Some little problem with the new elog |
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1266
|
Mon Feb 2 18:51:02 2009 |
Alberto | Configuration | General | New Elog 2.7.5 in Service on Nodus |
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1287
|
Mon Feb 9 19:50:48 2009 |
Yoichi | Configuration | PSL | ISS disconnected | We are doing measurements on ISS.
The ISS feedback connector is disconnected
and the beam to the MC is blocked. |
|
|
1292
|
Wed Feb 11 10:52:22 2009 |
Yoichi | Configuration | DAQ | C1:PEM-OSA_APTEMP and C1:PEM-OSA_SPTEMP disconnected | During the cleanup of the lab. Steve found
a box with two BNCs going to the ICS DAQ
interface and an unconnected D-SUB on the |
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1293
|
Wed Feb 11 11:39:17 2009 |
steve | Configuration | General | vac envelope ground | The vacuum envelope was grounded from
the IOO chamber to master ground north (under
electric breaker panel L)
with |
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1294
|
Wed Feb 11 15:01:47 2009 |
josephb | Configuration | Computers | Allegra | So after having broke Allegra by updating
the kernel, I was able to get it running
again by copying the xorg.conf.backup file |
|
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1299
|
Thu Feb 12 18:35:10 2009 |
Kakeru | Configuration | PSL | PA current limitter |
I added a PA current limiter.
It is only a voltage devider (composed |
|
|
1302
|
Fri Feb 13 16:30:49 2009 |
steve | Configuration | General | status quo is disturbed | I have been getting ready for the annual
safety inspection in the past 2-3 days.
Meaning cleaning up and disturbing |
|
|
1303
|
Sat Feb 14 16:15:19 2009 |
rob | Configuration | Computers | c1susvme1 | c1susvme1 is behaving weirdly. I've
restarted it several times but its computation
time is hanging out around 260 usec, making |
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1312
|
Mon Feb 16 20:47:48 2009 |
rana | Configuration | IOO | Mode Cleaner WFS Loop Gain change | I found the MCWFS gain slider down at 0.012.
In this state the UGFs are probably around
10-30 mHz
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1314
|
Mon Feb 16 22:58:51 2009 |
rana, yoichi | Configuration | SUS | Hysteresis in SUS from Misalignments | WE wondered if there was some hysteresis in
the SUS alignments. When we leave the optics
misaligned for a
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1320
|
Wed Feb 18 19:13:20 2009 |
rana | Configuration | Computers | SVN & MEDM & old medm files | Allegra had a 2 year old version of SVN installed
and CentOS (yum) couldn't upgrade it, so
I did an 'svn remove subversion'
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1333
|
Mon Feb 23 16:42:08 2009 |
josephb | Configuration | Cameras | Camera Beta Testing | I've setup the GC650 camera (ID 32223)
to look at the mode cleaner transmission.
I've also added an alias to the camera server |
|
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1340
|
Thu Feb 26 19:20:08 2009 |
Yoichi | Configuration | General | ETMX camera centered. POX, POY PDs centered | Alberto, Yoichi
We centered the ETMX camera.
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|
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1345
|
Mon Mar 2 16:27:40 2009 |
Alberto | Configuration | Electronics | MC Drum Mode SR560 Preamplifier Replaced | Today I checked out the SR560 around the
lab. I confirmed that the one with the label
"channel A noisy" is effectively |
|
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1356
|
Wed Mar 4 17:59:14 2009 |
Yoichi | Configuration | Computers | ezca tools and tds tools work around | Some of ezca commands and tds commands sporadically
fail with a segmentation fault on linux machines.
As far as I know, ezcawrite, ezcastep, ezcaswitch, |
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|
1357
|
Wed Mar 4 23:42:45 2009 |
rana | Configuration | PSL | psl db change | I made |
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1360
|
Thu Mar 5 02:24:19 2009 |
rana | Configuration | Computers | yum.repos.d | I added the following repos which
I found on allegra to megatron and then did
a 'yum install sshfs' on both machines: |
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|
1362
|
Thu Mar 5 23:18:38 2009 |
Kakeru | Configuration | Computers | tdsdata doesn't work | I found that tdsdata doesn't work.
When I star tdsdata, he takes a few ~ 10 |
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1363
|
Fri Mar 6 01:04:49 2009 |
Kiwamu IZUMI | Configuration | IOO | !! lock-in amp disconnected !! | The power supply of a lock-in amp, which
is on the Y-arm side of PSL clean room, was
pulled out by my mistake. |
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1368
|
Fri Mar 6 18:26:37 2009 |
Yoichi | Configuration | Computers | ezca tools and tds tools work around | I updated the wrapper scripts so that they
do not retry more than 6 times.
Otherwise, the wrapper scripts loop over |
|
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1377
|
Mon Mar 9 17:11:38 2009 |
Alberto | Configuration | oplevs | optical levers centering | Yoichi, Alberto
this afternoon we centered the optical
levers for all the optics. |
|
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1378
|
Mon Mar 9 19:27:16 2009 |
rana | Configuration | Computers | Move of the CLIO Digital Controls test setup | Because of the network interference
we've had from the CLIO system for the past
3-4 days, I asked the guys to remove |
|
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1384
|
Wed Mar 11 04:33:57 2009 |
rana | Configuration | Computer Scripts / Programs | wild ndsproxy tclshexe | The ndsproxy tcl task on nodus was eating
up all the CPU and making the elog slow.
I killed it and restarted it. |
|
|
1385
|
Wed Mar 11 11:30:15 2009 |
josephb | Configuration | Cameras | | I modified the Video.db file used by c1aux
located in /cvs/cds/caltech/target/c1aux.
I added the following channels to |
|
|
1405
|
Mon Mar 16 01:20:40 2009 |
rana | Configuration | IOO | MCWFS noise filtered on the SUS-MC | [SIZE=4][COLOR=darkgreen]Recently[/COLOR][/SIZE],
we noticed that the IOO-WFS system runs at
2048 Hz and sends its signals to the MC SUS
|
|
|
1406
|
Mon Mar 16 12:26:59 2009 |
Yoichi | Configuration | IOO | MC1 drift | There seems to be a large drift of MC1 even
when there is no WFS feedback.
The attached plot is an example a 20min trend. |
|
|
1408
|
Tue Mar 17 08:44:37 2009 |
Yoichi | Configuration | IOO | MC1 drift | I'm done with the MC1 drift measurement.
The result is attached. It is clear that
MC1 is in trouble. The small drifts in the |
|
|
1409
|
Thu Mar 19 02:45:36 2009 |
Yoichi | Configuration | IOO | A loose wire found for MC1 | I found a loose connection of a wire in the
cross-connect between an ADC and the MC1
coil driver's UL bias input.
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|
|
1410
|
Thu Mar 19 10:45:43 2009 |
Yoichi | Configuration | IOO | A loose wire found for MC1 | I attached a 6-hour trend of the MC mirror
OSEM signals with the MC unlocked.
The drift of the MC1 is within 20 counts |
|
|
1412
|
Fri Mar 20 12:07:19 2009 |
Yoichi | Configuration | ASC | ETMY beam centering | I forgot to put this in the elog.
Last Sunday night, I centered the beam on
the ETMY because it was too low.
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|
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1418
|
Mon Mar 23 15:50:44 2009 |
rana | Configuration | LSC | filters deleted, lsc rebooted | The LSC time had gone too high. I deleted
~20 filters and rebooted. CPU time came down
to 50 usec. |
|
|
1421
|
Tue Mar 24 13:10:07 2009 |
Alberto | Configuration | PSL | new mirror installed on the AP table | New flipping mirror installed on the AP
table on the beam path to the REFL199 PD.
If you're missing the double demod |
|
|
1442
|
Mon Mar 30 12:29:17 2009 |
Yoichi | Configuration | | MC1 glitches not seen during the weekend | The attached is the MC trend for the past
12 hours.
There is no MC1 glitches in the OSEM signals. |
|
|
1443
|
Mon Mar 30 12:46:36 2009 |
Yoichi | Configuration | IOO | IOO QPDs were missing the beam | When I re-locked the MC, I wanted to check
the trend of the IOO QPDs to see if the input
beam pointing has changed.
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|
|
1446
|
Mon Mar 30 17:02:46 2009 |
Yoichi | Configuration | General | AP OSA aligned | I aligned the AP OSA, which had been mis-aligned
for a while. |
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1457
|
Tue Apr 7 21:39:57 2009 |
Yoichi | Configuration | Computers | LSC code recompiled with a fix for denormalization problem | This is not my work but I will put it for
the record.
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1459
|
Wed Apr 8 09:36:20 2009 |
steve | Configuration | VAC | valve condition changed to BG to calibrate the RGA | Vacuum
normal valve condition was changed to accommodate
SRS-RGA calibration. |
|
|
1460
|
Wed Apr 8 18:18:33 2009 |
rana | Configuration | Computers | LSC code recompiled with a fix for denormalization problem | Below is the link to the anti-denormalization
technique that Rolf and Alex implemented
at the sites,
|
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1461
|
Wed Apr 8 18:46:50 2009 |
rana | Configuration | General | DMF, SVN, x2mc, and matlab | While waiting for the installation of the
32-bit Matlab 2009a to finish, I tried updating
our seisBLRMS.m code. |
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1474
|
Sun Apr 12 01:19:30 2009 |
Yoichi | Configuration | Computers | New FE codes for suspensions not successful | Alex recompiled the suspension FE codes for
c1susvme1 and c1susvme2 to fix the denormalization
problem.
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