| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
357
|
Tue Mar 4 20:14:02 2008 |
rana | Configuration | IOO | MC Alignment | The MC alignment was pretty far off. We were
getting TEM01 mode locks only.
Rather than inspect what happened I just |
|
|
363
|
Fri Mar 7 00:47:54 2008 |
rana | Configuration | PEM | Ranger SS-1 | Yesterday evening around 7:30 PM, I changed
the Ranger seismometer from a
vertical to a horizontal seismometer. To |
|
|
367
|
Mon Mar 10 20:46:41 2008 |
John | Configuration | LSC | ETMY Trans PD & QPD | I've placed a 10% reflector in the path from
ETMY to the trans and quadrant photodiodes. |
|
|
368
|
Tue Mar 11 23:14:01 2008 |
rana | Configuration | PEM | Accelerometer and Seismometer movements | Steve and Matt moved the accelerometers and
seismometers today.
The accelerometers are now placed around |
|
|
369
|
Wed Mar 12 00:36:52 2008 |
rana | Configuration | PEM | Accelerometer and Seismometer movements | I used the MISO FIR Wiener matlab code to
see how well we might do in principle.
|
|
|
370
|
Wed Mar 12 00:40:35 2008 |
rana | Configuration | PEM | Accelerometer and Seismometer movements | Same as above but with 2048 taps and a 128
Hz sample rate. Does much better at the 16
Hz bounce mode. |
|
|
371
|
Wed Mar 12 00:47:26 2008 |
rana | Configuration | PEM | Accelerometer and Seismometer movements | And this is a [COLOR=blue]cool snapshot[/COLOR]
showing how this operation used [B][COLOR=red]16
cores[/COLOR][/B] on [SIZE=5][B][COLOR=purple]menkar |
|
|
373
|
Thu Mar 13 02:52:06 2008 |
Lisa | Configuration | LSC | Locking with 3f | Today we have tried to use the reflected signal
demodulated at 3*f1 ~ 99 MHz ([COLOR=chocolate][B]REFL31[/B][/COLOR])
for length control.
|
|
|
378
|
Fri Mar 14 12:06:29 2008 |
josephb | Configuration | Cameras | GC750 looking at ETMX while locked | The GC750 (CMOS) is currently looking at the
front of ETMX. Unfortunately, its being
routed through a 10Mbit connection (which |
|
|
379
|
Fri Mar 14 14:59:51 2008 |
josephb | Configuration | Cameras | Comparison between GC650 (CCD) and GC750 (CMOS) looking at ETMX | Attached are images taken of ETMX while locked.
The first two are 300,000 microsecond exposure |
|
|
381
|
Fri Mar 14 15:52:07 2008 |
rob | Configuration | LSC | LSC code change |
I've edited the LSC code to send different
signals to the ASS box. Now, instead of |
|
|
383
|
Sun Mar 16 17:03:32 2008 |
rob | Configuration | CDS | ASS code change |
I've updated the ass.mdl file in the directory:
|
|
|
384
|
Mon Mar 17 18:30:48 2008 |
mevans | Configuration | PEM | Adaptive Filtering | It seems that adaptive filtering can achieve
results similar to those of the MISO FIR
Wiener (entry 369). The adaptive code simulates |
|
|
386
|
Thu Mar 20 16:06:27 2008 |
rob | Configuration | LSC | LSC code change |
I changed the LSC code again. I noticed
that when turning off the LSC (e.g., going |
|
|
390
|
Fri Mar 21 17:01:21 2008 |
rana | Configuration | DMF | Locale change on Mafalda & seisBLRMS restart | Ever since we moved the accelerometers to
be around the MC and changed their names,
the seisBLRMS
|
|
|
391
|
Fri Mar 21 23:15:11 2008 |
rana | Configuration | PEM | Ranger SS-1: New Setup | The Ranger seismometer has been in a bad state.
Its output had been sent into a SR560 without
any termination.
|
|
|
392
|
Fri Mar 21 23:17:47 2008 |
rana | Configuration | DMF | seisBLRMS restarted | I updated the seisBLRMS par file with the
new channel names of the accelerometers and
the seismometer and then
|
|
|
412
|
Thu Apr 3 18:46:04 2008 |
Andrey | Configuration | Computers | "Network switch board" and "c1pem1 crate" were touched |
While working with the weather station, I
did two things that potentially (with a very |
|
|
418
|
Tue Apr 8 09:08:54 2008 |
steve | Configuration | PEM | weather station disconnected | We can not leave cables in the walkways and
go on vacation.
I disconnected the weather station from the |
|
|
419
|
Tue Apr 15 18:44:25 2008 |
rana | Configuration | Computers | Rosalba | There is a new computer in the control room
-- its called [B][COLOR=purple]Rosalba[/COLOR][/B],
in keeping with our naming convention. Its |
|
|
434
|
Tue Apr 22 08:34:22 2008 |
josephb | Configuration | Cameras | Current Network Diagram | The attached network diagram has also been
added to the 40m Wiki at http://lhocds.ligo-wa.caltech.edu:8000/40m/Image_Processing_with_GigE_Cameras |
|
|
439
|
Tue Apr 22 22:51:30 2008 |
rana | Configuration | IOO | McWFS Status | I've been working a little on the MC WFS in
the last few days. I have made many
changes to the sensing matrix script and |
|
|
443
|
Thu Apr 24 15:57:53 2008 |
steve | Configuration | SAFETY | Safety at AP-ISCT | I measured the output power of the psl after
the mechanical shutter.
|
|
|
447
|
Fri Apr 25 11:33:40 2008 |
Andrey | Configuration | Computers | Computer controlling vaccum equipment |
[COLOR=blue]Old computer[/COLOR] (located
in the south-end end of the interferometer |
|
|
451
|
Fri Apr 25 20:53:02 2008 |
rana | Configuration | IOO | MC WFS with more gain | Quick update: we found that the reason for
the MC WFS instability was that the digital
anti-whitening was one but not the analog |
|
|
454
|
Sun Apr 27 02:11:11 2008 |
rana | Configuration | IOO | MC WFS Notes | As noted in the elog from Friday, the WFS
has been bad ever since someone switched
on the digital whitening filters (FM1 & FM2)
|
|
|
455
|
Sun Apr 27 05:09:30 2008 |
rana | Configuration | IOO | MC WFS Whitening turned on | I [B]hardwired on the MC WFS whitening[/B]
filters.
|
|
|
463
|
Thu May 1 12:46:02 2008 |
josephb | Configuration | Computers | Nodus gateway is up | The computer Nodus is now acting as a gateway
machine between the GC network and the martian
network in the 40m. It has the same passwords |
|
|
466
|
Tue May 6 17:28:39 2008 |
rob | Configuration | LSC | AP33 -> POX33 |
I am in the process of switching the POX166
and AP33 photodetectors, so that they become |
|
|
467
|
Wed May 7 15:25:41 2008 |
rob | Configuration | LSC | AP33 -> POX33 | [quote]
I am in the process of switching the POX166
and AP33 photodetectors, so that they become |
|
|
471
|
Thu May 8 16:40:36 2008 |
josephb | Configuration | Cameras | Gige Camera currently on PSL table | Andrey and myself were working on the PSL
table today, using a pickoff of a pickoff
of the main beam (adding a microscope slide |
|
|
479
|
Thu May 15 12:05:49 2008 |
josephb | Configuration | PSL | Path to PSL Position QPD | The 50/50 beamsplitter that was being used
as the last turning mirror to the PSL Position
QPD has been replaced with a Y1-1037-45-S |
|
|
486
|
Sun May 18 18:59:15 2008 |
rana | Configuration | Computers | cron and hosts | I added rosalba to the hosts file for the
control room machines (131.215.113.103).
|
|
|
489
|
Tue May 20 18:33:01 2008 |
Andrey, John | Configuration | IOO | Mode Cleaner is locked again |
It was noticed by Mr.Adhikari earlier today
that the MC became unlocked at about 11AM.
|
|
|
492
|
Thu May 22 11:25:19 2008 |
josephb | Configuration | Computers | | One of the new Netgear Prosafe 24 port switches
was mounted in the 1X4 rack,, roughly in
the middle, away from the top and bottom |
|
|
495
|
Sun May 25 16:20:27 2008 |
rana | Configuration | Computers | joinPDF | I have installed joinPDF 2.1 on rosalba. Since
its written in Java, I didn't have to tinker
with it at all to work on a 64-bit machine. |
|
|
498
|
Sun May 25 21:14:14 2008 |
tobin | Configuration | Computers | EPICS proxy server | I set up an EPICS gateway server on Nodus
so that we can look at 40m MEDM screens from
off-site.
|
|
|
500
|
Tue May 27 16:24:54 2008 |
tobin | Configuration | Computer Scripts / Programs | ndsproxy | The NDS Proxy is a program that accepts NDS
(LIGO Network Data Server) connections from
the internet and relays them to
|
|
|
501
|
Wed May 28 12:51:32 2008 |
josephb | Configuration | Computers | Two more switches mounted | Two more Prosafe 24 port switches have been
mounted in the racks, one in 1Y9 and one
in 1Y6. (The first one was placed in 1X4).
|
|
|
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 |
|
|
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:
|
|
|
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
|
|
|
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. |
|
|
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, |
|
|
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:
|
|
|
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. |
|
|
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.
|
|
|
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 |
|
|
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 |
|
|
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 |
|