| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
671
|
Tue Jul 15 10:09:42 2008 |
Eric | DAQ | Cameras | Did anyone kill the picture taking process on Mafalda? | Did anyone kill the process on Mafalda that
was taking pictures of the end mirror of
the x-arm last Friday? I need to know whether |
|
|
670
|
Tue Jul 15 09:47:09 2008 |
steve | Update | PEM | lab temps and particles | All air condtion units were serviced last
Friday.
AC filters are trying to control our particle |
|
|
669
|
Mon Jul 14 21:34:10 2008 |
Alberto | Update | General | abs cavity length measurement experiment | [quote]Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
668
|
Mon Jul 14 19:15:43 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
667
|
Mon Jul 14 12:43:07 2008 |
John | Summary | Computers | Restarted fb40m, tpman and c1ass | |
|
|
666
|
Mon Jul 14 10:57:00 2008 |
Koji | Frogs | Environment | Someone at 40M sent LHO water of life | Someone at the 40m sent Mike@LHO a pound of
peets coffee with the name of Koji Arai.
It was a good surprise! Thanks, we will enjoy |
|
|
665
|
Mon Jul 14 00:36:19 2008 |
John | Summary | PSL | Slow sweep of laser temp - PMC PZT response | John, Rana
Follow up to # 663
|
|
|
664
|
Sun Jul 13 22:39:16 2008 |
John | Summary | General | Edited medm screens | I've edited the FSS and PMC screens so that
red boxes are shown around the appropriate
slider if a gain or offset is not within |
|
|
663
|
Sun Jul 13 17:19:29 2008 |
rana | Summary | PSL | MOPA SLOWM Calibration | John, Rana
We first unlocked the FSS and ramped the |
|
|
662
|
Sat Jul 12 23:28:31 2008 |
rana | Update | PSL | PMC needs help | As everyone has noticed recently, the PMC
seems to have a PZT problem. It often zooms
|
|
|
661
|
Fri Jul 11 23:55:25 2008 |
alan | Update | Locking | RF common mode at zero offset | [quote][I]rob, john, yoichi[/I]
[SIZE=3][FONT=Comic Sans MS]Last night we |
|
|
660
|
Fri Jul 11 20:16:01 2008 |
Eric | DAQ | Cameras | Taking data from the GC 750 Camera | Mafalda has been set up with a background
process to constantly take data from the
GC 750 camera (at the end of the x-arm) for |
|
|
659
|
Fri Jul 11 09:29:02 2008 |
steve | Update | PSL | the PMC still hangs up | Morning alarms:
PMC high voltage is railing, it's auto locker |
|
|
658
|
Fri Jul 11 00:30:24 2008 |
rob | Metaphysics | Computers | strange SUS controllers |
[I]rob, johnnie[B]M[/B][/I]
|
|
|
657
|
Thu Jul 10 23:27:57 2008 |
John | Metaphysics | Cameras | Secret handshakes | Rob and I have joined the ranks of the illuminati
and exercised our power.
|
|
|
656
|
Thu Jul 10 19:12:07 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Yesterday morning, when I started, I found
the IFO beam on a different position and
the beam spot at the AS port looked very |
|
|
655
|
Thu Jul 10 14:59:01 2008 |
rob | Update | Locking | RF common mode at zero offset | [I]rob, john, yoichi[/I]
[SIZE=3][FONT=Comic Sans MS]Last night we |
|
|
654
|
Thu Jul 10 13:47:12 2008 |
Yoichi | HowTo | Computers | svn access via https | Now you can access to the svn repository on
nodus by https.
To perform a checkout, you can use the following |
|
|
653
|
Wed Jul 9 17:58:19 2008 |
John | Summary | General | Illuminator alarms | This morning some time was wasted on alignment
due to the illuminators.
|
|
|
652
|
Wed Jul 9 15:04:22 2008 |
steve | Metaphysics | Photos | SURFs helping hands | Surf students are helping out with baffle
cleaning. |
|
|
651
|
Wed Jul 9 12:42:14 2008 |
John | Update | Locking | Hand off to RF CARM | Rob, Yoichi, John
Last night we were able to reduce the CARM |
|
|
650
|
Tue Jul 8 21:58:22 2008 |
alberto | Update | General | Secondaty beam aligned to the IFO beam again | Yesterday the alignment of the secondary beam
to the IFO was completely lost and today
I had to realign all the optics before I |
|
|
649
|
Tue Jul 8 21:46:38 2008 |
Yoichi | Configuration | PSL | GC650M moved to the PMC transmission | I moved a GC650M, which was monitoring the
light coming out of the PSL, to the transmission
port of the PMC to see the transmitted mode |
|
|
648
|
Tue Jul 8 12:25:54 2008 |
John | Summary | PSL | ISS gain set to 2dB | |
|
|
647
|
Tue Jul 8 10:26:30 2008 |
Masha | Update | Auxiliary locking | setup updates | Yesterday I changed one of the beam splitters
in the Mach Zehnder to one with a more stable
mount as to reduce the system's coupling |
|
|
646
|
Tue Jul 8 10:20:10 2008 |
steve | Update | PEM | HEPA turned on | It is specially important to run the PSL-HEPA
filters when inside counts is peaking at
30,000 counts
|
|
|
645
|
Tue Jul 8 08:16:56 2008 |
steve | Update | PSL | PMC problem | The PMC is unhappy. PMC auto locker is not
working.
DC output slider adjust has to be moved from |
|
|
644
|
Tue Jul 8 00:14:28 2008 |
John | Summary | Computers | Alarm handler | Rob thought it would be nice to have some
alarms on the cpu loads and FE syncs.
I added all these channels to the alarm handler |
|
|
643
|
Mon Jul 7 19:15:38 2008 |
Alberto | Update | General | Optics alignement on the ABS length experiment | Today I started setting up the PLL instruments
to lock the frequency of the NPRO beam to
the IFO beam. with no need of a new alignment |
|
|
642
|
Mon Jul 7 16:30:08 2008 |
steve | Update | PSL | PSL-PEM 16 days trend | This morning the laser head temp was up to
20.3C because the laser chiller was overflowing.
I removed 700 cc water.
|
|
|
641
|
Mon Jul 7 14:02:05 2008 |
Yoichi | Update | Computers | SVN conversion progress | So far /cvs/cds/caltech/medm, /cvs/cds/caltech/chans
and /cvs/cds/caltech/scripts have been converted
to svn working copies.
|
|
|
640
|
Mon Jul 7 13:58:37 2008 |
Eric, josephb | DAQ | PEM | Using unused PEM channels to test camera code | Joe and I have taken control of the EPICS
channels C1:PEM-Stacis_EEEX_geo and C1:PEM-Stacis_EEEY_geo
since we heard that they are no longer in |
|
|
639
|
Mon Jul 7 13:49:27 2008 |
Yoichi | HowTo | PSL | MZ offset, gain tips | John, Yoichi
This morning John found that MZ servo is |
|
|
638
|
Mon Jul 7 13:06:38 2008 |
Koji | Update | General | Beats of the two lasers in the absolute length measurement observed | One may need an RF filter after the mixer.
I expect the SR560 does work for this purpose.
If it does not, a passive LPF can be used.
|
|
|
637
|
Mon Jul 7 11:22:02 2008 |
Alberto | Update | General | Beats of the two lasers in the absolute length measurement observed | I didn't post a screenshot from the RF SA
because I had troubles with the interface
with the computer (unfortunately the network |
|
|
636
|
Sun Jul 6 16:17:40 2008 |
tobin | HowTo | Computers | SVN | I was able to check out the 40m SVN here in
Livingston using this command:
|
|
|
635
|
Thu Jul 3 22:54:45 2008 |
Koji | Update | General | Beats of the two lasers in the absolute length measurement observed | Great! Conguraturation! I wish if I could
see it! It's nice if you can put the photo
or anything of the RF spectrum analyzer.
|
|
|
634
|
Thu Jul 3 18:48:09 2008 |
Alberto | Update | General | Beats of the two lasers in the absolute length measurement observed | I adjusted the alignment of the flipper mirror
as suggested by Koji making the two beam
spots match. I also aligned all the IFO mirrors |
|
|
633
|
Thu Jul 3 16:57:23 2008 |
John | Summary | General | FSS_RMTEMP | The FSS room temp alarm has been beeping a
lot recently. I altered the FSS_RMTEMP alarm
levels using the
|
|
|
632
|
Thu Jul 3 16:18:51 2008 |
rob | Summary | Locking | specgrams | I used ligoDV to make some spectrograms of
DARM_ERR (1), QPDX (2), and QPDY (3). These
show the massive instability from 30-40Hz |
|
|
631
|
Thu Jul 3 13:54:26 2008 |
rob | Configuration | Computers | mDV on rosalba |
Does mDV work on rosalba? It can't find
[B][FONT=Courier New]NDS_GetChannels[/FONT][/B]. |
|
|
630
|
Thu Jul 3 13:12:32 2008 |
Rob, Yoichi, John | Update | Locking | More oscillations | Bounce/ roll filters were added to the short
degrees of freedom to reduce the effect of
the 24Hz line seen on Tuesday night.
|
|
|
629
|
Thu Jul 3 12:36:05 2008 |
Jonh | Summary | SUS | ETMY watchdog | ETMY watchdog was tripped. I turned it off
and re-enabled the outputs. |
|
|
628
|
Thu Jul 3 11:53:30 2008 |
Koji | Update | General | Status of the alignment of the NPRO beam for the Absolute Length Measurement | The method itself looked fine.
Use of the one arm configuration will make |
|
|
627
|
Wed Jul 2 19:15:52 2008 |
Alberto | Update | General | Status of the alignment of the NPRO beam for the Absolute Length Measurement | Today I've tried to bring the frequency of
the NPRO laser close enough to that of the
IFO beam so that the beat between the two |
|
|
626
|
Wed Jul 2 18:30:01 2008 |
John | Update | IOO | QPD alignment | I aligned the beams on the following QPDs
IP POS
|
|
|
625
|
Wed Jul 2 17:19:03 2008 |
John | Summary | Computers | op440m - shutdown and restarted | After 160days op440m was getting a little
slow. |
|
|
624
|
Wed Jul 2 15:14:42 2008 |
steve | Update | General | added beam traps | I placed baked razor beam trap after INJ_SM1
and flipper in the injection path on the
AP table
|
|
|
623
|
Wed Jul 2 13:56:10 2008 |
Rob, Yoichi, John | Update | Locking | 24.5 Hz resonance | Work continues on trying to reduce the CARM
offset using dc signals from PO_DC. Got up
to arm powers of
|
|
|
622
|
Wed Jul 2 10:35:02 2008 |
Eric | Summary | Cameras | General Summary | I finished up the 2D Gaussian fitting code,
and, along with Joe, integrated into the
Snap software so that it automatically does |
|