| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
552
|
Mon Jun 23 15:22:04 2008 |
rana | Bureaucracy | SAFETY | Laser Safety Walkthrough today | |
|
|
551
|
Sun Jun 22 21:38:49 2008 |
rob | HowTo | General | IFO CONFIGURE |
Now that we're getting back into locking,
it's nice to have a stable alignment of the |
|
|
550
|
Fri Jun 20 17:42:48 2008 |
steve | Update | PSL | SS trap scattering compared to black glass trap | Circular SS304 trap was compared to wedged
black glass trap.
|
|
|
549
|
Fri Jun 20 08:30:27 2008 |
stiv | Update | Photos | 40m summer line up 2008 | atm1: John, Alberto, Yoichi, Koji, Masha,
and Sharon
|
|
|
548
|
Fri Jun 20 02:20:33 2008 |
Yoichi | Update | | PMC transmittance degradation | The PMC transmitted light power has been degrading
constantly for last two weeks (see the attachment
1).
|
|
|
547
|
Fri Jun 20 01:38:55 2008 |
rana | Update | PEM | 20 day Weather | Yoichi showed me that its possible to make
PNG images from PS using GS:
|
|
|
546
|
Thu Jun 19 20:22:03 2008 |
rana | Update | General | FE Computer Status | I called Rolf (@LLO) who called Alex (@MIT)
who suggested that we power cycle every crate
|
|
|
545
|
Thu Jun 19 15:52:06 2008 |
Alberto | Configuration | Computers | Measure of the current absorbed by the new Megatron Computer | Together with Rich Abbot, sam Abbot and I
measured the current absorbed by the new
Megatron computer that we installed yesterday |
|
|
544
|
Wed Jun 18 18:50:09 2008 |
rana | Update | Computers | It can only be attributable to human error. (HAL - 2001) | [B]There has been another one of "those" events
and all of the front end machines are down.[/B]
|
|
|
542
|
Wed Jun 18 18:32:09 2008 |
Max Jones | Update | Computer Scripts / Programs | NB Update | I am reconfiguring the the noisebudget code
currently in use at the sights. To that end,
I have done the following things (in addition |
|
|
541
|
Wed Jun 18 18:26:19 2008 |
Yoichi | Update | PSL | Finding the optimal operation temperature for the NPRO by the slow act scan | Being suspicious of the temperature stabilization
of the NPRO crystal, I ran the slow scan
script written by Rana to find the suitable |
|
|
540
|
Wed Jun 18 18:20:10 2008 |
Yoichi | Update | PSL | Investigation on the NPRO temperature stabilization glitches | As Rob pointed out in http://dziban.ligo.caltech.edu:40/40m/537
the MOPA NPRO has been showing some glitchiness
in the LTEC loop.
|
|
|
539
|
Wed Jun 18 16:37:54 2008 |
steve,rana | Update | SAFETY | CO2 test in the east arm | The CO2 laser and table are in the east arm
for characterization of the mechanics. We
will not be operating it until we have an |
|
|
538
|
Wed Jun 18 16:07:57 2008 |
rob | Summary | Computers | RFM network down |
The RFM network tripped off around noon today.
It's still down. The problem appears to |
|
|
537
|
Wed Jun 18 00:19:29 2008 |
rob | Update | PSL | MOPA trend | 15 day trend of MOPA channels. The NPRO temperature
fluctations are real, and causing the PMC
to consistently run up against its rails. |
|
|
536
|
Tue Jun 17 22:00:53 2008 |
John | HowTo | PSL | Problems turning MZ servo on/off | We were unable to toggle the MZ servo on/off
(Blank/Normal) from MEDM. Pushing on the
Xycom board and cables changed the fault |
|
|
535
|
Mon Jun 16 18:26:01 2008 |
Max Jones | Update | Computer Scripts / Programs | Noise Budget Changes | In the directory cvs/cds/caltech/NB the following
changes were made:
|
|
|
534
|
Fri Jun 13 11:17:25 2008 |
Yoichi | Update | PSL | PMC transmittance at high power | We received a new cable for the Scientech
calorimeter. So I measured the transmittance
of the PMC at higher power.
|
|
|
533
|
Thu Jun 12 15:55:15 2008 |
rob | Update | Locking | report | [quote]Rob: Awesome figure. As you can imagine,
I have lots of questions, and hope that you
will consider this figure to be the beginning, |
|
|
532
|
Thu Jun 12 15:09:33 2008 |
alan | Update | Locking | report | Rob: Awesome figure. As you can imagine, I
have lots of questions, and hope that you
will consider this figure to be the beginning, |
|
|
531
|
Thu Jun 12 01:51:23 2008 |
rob | Update | Locking | report | [I]rob, john[/I]
We've been working (nights) on getting the |
|
|
530
|
Wed Jun 11 15:30:55 2008 |
josephb | Configuration | Cameras | GC1280 | The trial use GC1280 has arrived. This is
a higher resolution CMOS camera (similar
to the GC750). Other than higher resolution, |
|
|
529
|
Wed Jun 11 11:45:25 2008 |
steve | Update | PSL | ss trap works | The trap works well at 3 W level. No back
reflected beam coming out of the trap on
low power
|
|
|
528
|
Tue Jun 10 08:37:18 2008 |
steve | Update | PSL | beam trap is being tested | High power beam trap is being tested just
west of FSS area on psl enclosure.
|
|
|
527
|
Mon Jun 9 17:57:59 2008 |
Yoichi | Configuration | PSL | PMC input power backed to the original | I rotated back the HWP before the PBS to restore
the input laser power to the PMC.
Now the reading of PSL-PMC_PMCTRANSPD is |
|
|
526
|
Mon Jun 9 17:32:14 2008 |
Yoichi | Configuration | PSL | PMC transmittance | I checked the current PMC transmissivity at
a low power.
The input laser power to the PMC was reduced |
|
|
525
|
Fri Jun 6 16:47:04 2008 |
josephb | Configuration | Cameras | GC650 scatter images of 1064nm light | Took images similar to the scattered light
images from earlier, except with the CCD
GC650 camera. The first three attached plots |
|
|
524
|
Fri Jun 6 16:10:51 2008 |
steve | Update | PSL | HEPA filters are running at 100% | The psl HEPA filters were turned up to run
at 100% to accommodate beam trap work on
Tuesday, June 3, 2008 |
|
|
523
|
Fri Jun 6 15:56:00 2008 |
steve | Bureaucracy | SAFETY | Yoichi received safety training | Yoichi Aso received 40m specific safety training. |
|
|
522
|
Fri Jun 6 11:19:13 2008 |
Caryn | Summary | PEM | Filtering MC_L and MC_F with PEM:ACC and microphone | Tried to filter MC_L and MC_F with acc/seis
data and microphone data using wiener filter
(levinson)
|
8x |
|
521
|
Thu Jun 5 13:35:23 2008 |
josephb | Configuration | Cameras | GC750 looking at 1064nm scattered light | I've taken 200 images of the GC750 (CMOS)
camera while holding it by hand up to a beam
card (also held by hand) in the path of ~5mW |
|
|
520
|
Thu Jun 5 10:46:26 2008 |
josephb | Configuration | Cameras | Approximately uniform reflected white light | In an attempt to investigate the structures
seen in previous images for the GC750, I
aimed it at a relatively clean section of |
|
|
519
|
Wed Jun 4 16:57:12 2008 |
josephb | Configuration | Cameras | Dark images from cameras (electronics noise measurement) | The attached pdfs are 1 second and 1 millisecond
long integrations from the GC650 and GC750
cameras with a cap in place - i.e. no light.
|
|
|
518
|
Wed Jun 4 16:25:06 2008 |
Caryn | Summary | PEM | microphone moved | The microphone 'C1:PEM-AS_MIC' has been moved
right a bit. This change didn't seem to have
much effect on filtering the 'C1:IOO-MC_L' |
|
|
517
|
Wed Jun 4 13:46:42 2008 |
josephb | Configuration | Cameras | Changing incident angle images | Attached are images from the GC650 and GC750
when the incident angle was varied from 0
tilt (normal incidence) to 5,10, and 20 degrees. |
|
|
516
|
Wed Jun 4 10:18:52 2008 |
steve | Update | PSL | wedged SS beam trap | I moved the SS trap over to the psl table.
Texas super # 8 was used from the large shipment.
TXs#8 scattering measured as before, meaning |
|
|
515
|
Tue Jun 3 12:33:36 2008 |
Andrey | Update | Cameras | Andrey, Josephb |
Continuing our work with cameras,
|
|
|
514
|
Tue Jun 3 10:40:27 2008 |
tobin | Configuration | Computers | new dataviewer | Alex let me know the secret location of the
latest dataviewer executable for Linux.
It is:
|
|
|
513
|
Tue Jun 3 10:19:45 2008 |
tobin | Configuration | Computers | big machine | Several of us transported the big new awesome
Sun box from Bridge over to
the 40m last week. If I recall correctly, |
|
|
512
|
Tue Jun 3 02:15:29 2008 |
Andrey | Summary | Cameras | Fitting results |
There have been a lot of work going on related
to the processing of images captured by the |
|
|
511
|
Mon Jun 2 12:20:35 2008 |
josephb | Bureaucracy | Cameras | Beam scan has moved | The beamscan has been moved from the Rana
lab back over to the 40m, to be used to calibrate
the Prosilica cameras. |
|
|
510
|
Sun Jun 1 19:39:35 2008 |
tobin | Configuration | Computers | elog, etc | Phil Ehrens gave me a DVD of the 40m elog,
apache, and (Jamie's) SVN archive.
I copied it to nodus:/home/controls/dvd-from-ehrens. |
|
|
509
|
Sun Jun 1 19:25:10 2008 |
rana | Configuration | Computers | new monitor on op440m | I installed the new 24" flat screen on op440m.
I increased the screen resolution from 1280x1024
to 1900x1200 using
|
|
|
508
|
Fri May 30 21:30:15 2008 |
tobin | Configuration | Computers | svn on solaris | I installed svn on op440m. This involved
installing the following packages from sunfreeware:
|
|
|
507
|
Fri May 30 12:37:45 2008 |
rob | Update | SUS | etmy oplev is back | [quote]I relayed the optics for ETMY-oplev
as shown in pictures below.
The reflected beam goes directly to the qpd[/quote]
|
|
|
506
|
Fri May 30 12:03:08 2008 |
josephb, Andrey | Configuration | Cameras | Head to head comparison of cameras | Andrey and myself - Joseph B. - have examined
the output of the GC650 (CCD) and GC750 (CMOS)
prosilica cameras. We did several live motion |
|
|
505
|
Thu May 29 16:49:49 2008 |
steve | Bureaucracy | Photos | Yoichi has arrived | Yoichi had his first 40m meeting. We welcomed
him and Tobin, who is visiting, by sugar
napoleons that
|
|
|
504
|
Thu May 29 16:32:09 2008 |
steve | Update | SUS | etmy oplev is back | I relayed the optics for ETMY-oplev as shown
in pictures below.
The reflected beam goes directly to the qpd |
|
|
503
|
Thu May 29 15:58:44 2008 |
John | Summary | IOO | MC realignment | I repeatedly adjusted the yaw of the upper
mirror on the input periscope and re aligned
the MC. With the PRM aligned I tried to optimise |
|
|
502
|
Wed May 28 14:19:47 2008 |
steve | Update | PSL | kaleidoscope of psl | atm 1: scattering psl table optics from the
top of the output periscope f4, 60s @MOPA
3 W
|
|