| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
832
|
Wed Aug 13 20:13:35 2008 |
Yoichi | Update | SUS | PRM stand-off is glued | Steve, Janne, Rob, Bob, Koji, Yoichi
We finally managed to balance the PRM and |
|
|
831
|
Wed Aug 13 17:00:59 2008 |
steve | Configuration | SUS | BS sat amp removed | The PRM sat amp is broken. Ben is working
on it.
The BS sat amp was removed from the BS sus |
|
|
830
|
Tue Aug 12 21:38:19 2008 |
John | Update | LSC | Accidental higher order mode resonances in the arms | Recently we had been having some trouble locking
the full IFO in the [COLOR=green][I][FONT=Verdana]spring[/FONT][/I][/COLOR]
configuration (SRC on [COLOR=blue]+166[/COLOR]).
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|
|
829
|
Tue Aug 12 19:48:24 2008 |
Jenne | Update | IOO | PRM standoff is in....mostly | Yoichi, Jenne
The missing PRM standoff is now partially |
|
|
828
|
Tue Aug 12 12:21:13 2008 |
josephb | Configuration | Cameras | Variation in fit over 140 images for GC650 and GC750 | Used matlab to calculate Gaussian fits on
145 GC650 images and 142 GC750 images. These
were individual images (no averaging) looking |
|
|
827
|
Tue Aug 12 12:05:36 2008 |
Yoichi | Update | Computers | HP color printer is back | I restarted the HP printer server (a little
box connected to the HP color laser) so that
we can use the HP LaserJet 2550.
|
|
|
826
|
Mon Aug 11 19:09:28 2008 |
Jenne | DAQ | PEM | Seismometer DAQ is being funny | While looking at the Ranger seismometer's
output to figure out what our max typical
ground motion is, Rana and I saw that the |
|
|
825
|
Mon Aug 11 15:07:49 2008 |
josephb | Configuration | Computers | Procyon aka fb40m switched to new switch | I've connected Procyon to the Prosafe 24 port
switch with a new, labeled Cat6 cable. Quick
tests with dataviewer shows that its working. |
|
|
824
|
Mon Aug 11 13:59:23 2008 |
josephb | Configuration | Computers | | While poking around the crate, I noticed an
error light on one of the c1susvme2 related
boards was lit, while the corresponding light |
|
|
823
|
Mon Aug 11 12:42:04 2008 |
josephb | Configuration | Computers | Continuing saga of c1susvme1 | Coming back after lunch around 12:30pm, c1susvme1's
status was again red. After switching off
watchdogs, a reboot (ssh, su, reboot) and |
|
|
822
|
Mon Aug 11 11:36:11 2008 |
josephb, Steve | Configuration | Computers | c1susvme1 minor problems | Around 11 am c1susvme1 start having issues.
Namely C1:SUS-PRM_FE_SYNC was railing at
some large value like 16384 (2^14). I presume |
|
|
821
|
Mon Aug 11 09:39:29 2008 |
rana | Update | PEM | 2 years of temperature trend | Steve and I went around and inspected and
then adjusted the thermostats and [FONT=Comic
Sans MS]humidostats[/FONT].
|
|
|
820
|
Mon Aug 11 00:58:31 2008 |
rana | Update | PEM | 2 years of temperature trend | The PSL RMTEMP alarmed again because it says
the room temperature is 19.5 C. Steve said
in
|
|
|
819
|
Sun Aug 10 16:57:02 2008 |
rana | Summary | Photos | Photos from Vent 8/4 - 8/8 | http://www.ligo.caltech.edu/~rana/40m/VentAug08/
I've added the D40 pictures from last week |
|
|
818
|
Fri Aug 8 17:54:52 2008 |
Jenne | Update | SUS | Standoffs and Guide Rods | After closer inspection of other small optics,
it is clear that the guide rods should be
[SIZE=2]above[/SIZE] the standoffs on our |
|
|
817
|
Fri Aug 8 15:10:35 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | I tried to find the missing stand-off and
the guide rod in the BS chamber, but I couldn't. |
|
|
816
|
Fri Aug 8 13:29:54 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | Yoichi, Steve, Seiji
We took magnified pictures of the stand-offs |
|
|
815
|
Fri Aug 8 12:21:57 2008 |
josephb | Configuration | Computers | Switched X end ethernet connections over to new switch | In 1X4, I've switched the ethernet connections
from c1iscex and c1auxex over to the new
Prosafe 24 port switches. They also use |
|
|
814
|
Fri Aug 8 11:04:34 2008 |
Sharon | Update | | MCL Wiener filter | I took some old data from Rana and converted
the units of the Weiner filter to m/m so
to make the effect of the seismometer and |
|
|
813
|
Fri Aug 8 10:58:05 2008 |
josephb | Configuration | Cameras | Cameras and gstreamer | In regards to camera failure:
1) I forgot to reconnect that particular
camera to the network (my fault) so thats |
|
|
812
|
Fri Aug 8 09:54:10 2008 |
rana | Update | Cameras | New code + gstreamer allows for easy saving and compression of images | [quote]Modified the CamSnap code to output
the image data stream to standard out. This
can then be piped into a gstreamer plugin |
|
|
811
|
Thu Aug 7 17:32:23 2008 |
Jenne | Update | SUS | Afternoon PRM activities | Rana, Jenne, Yoichi, Dmass
After Yoichi confirmed this morning that |
|
|
810
|
Thu Aug 7 12:20:52 2008 |
Yoichi | Update | SUS | PRM stand-offs and wire | We removed the side OSEM of the PRM so that
we can see the stand-off on the farther side.
|
|
|
809
|
Thu Aug 7 11:54:26 2008 |
josephb | Configuration | Cameras | New code + gstreamer allows for easy saving and compression of images | Modified the CamSnap code to output the image
data stream to standard out. This can then
be piped into a gstreamer plugin and then |
|
|
808
|
Thu Aug 7 10:27:59 2008 |
rana | Update | SUS | Free swinging OSEM spectra | Sometimes we see extra peaks in the OSEM spectra
coming from a beat between the regular eigenmodes.
This probably comes from the OSEM shadow |
|
|
807
|
Thu Aug 7 10:07:13 2008 |
Yoichi | Update | SUS | Free swinging OSEM spectra | Looks like there are more extra peaks in the
SRM than other optics.
Maybe because it is closer to the door ? |
|
|
806
|
Wed Aug 6 22:19:07 2008 |
Yoichi | Update | SUS | BS alignment | Koji, Yoichi
We realized that we did not pay attention |
|
|
805
|
Wed Aug 6 19:01:15 2008 |
Alberto | Update | General | ITMX and SRM OSEM post-earthquake diagnostic | Koji, Yoichi, Alberto
Today we reset the OSEMs on ITMX and SRM |
|
|
804
|
Wed Aug 6 13:57:44 2008 |
Masha | Summary | Auxiliary locking | weekly summary | Finished second progress report.
Working on improving the sensitivity of the |
|
|
803
|
Wed Aug 6 13:15:57 2008 |
Yoichi | Update | SUS | SRM ETMX freeswing spectra | After yesterday's work on the SRM, I took
free swinging spectra of SRM.
The eigen modes look ok. But there are many |
|
|
802
|
Wed Aug 6 11:43:52 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM01 scan | [B]Analysis of the data on August 3th ~ Part
2[/B]
|
|
|
801
|
Wed Aug 6 11:10:34 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM00 scan | [B]Analysis of the data on August 3th ~ Part
1[/B]
|
|
|
800
|
Tue Aug 5 17:56:23 2008 |
Alberto | Configuration | General | SRM and PRM inspection | Yoichi, Koji, Rana, Steve, Alberto
Today we opened the [B]BSC[/B] to inspect |
|
|
799
|
Tue Aug 5 12:52:28 2008 |
Yoichi | Update | SUS | ITMX, SRM OSEM spectra | Free swinging spectra of ITMX and SRM.
ITMX seems to be ok after yesterday's work,
though the OSEM DC values are still a bit |
|
|
798
|
Tue Aug 5 10:56:05 2008 |
Alberto | Configuration | General | ITMX chamber opened and mirror released | D-Mass, Steve, Rana, Koji, Yoichi, Alberto,
We opened the ITMX chamber to check the optics
after last week earthquake. In particular, |
|
|
797
|
Tue Aug 5 10:23:00 2008 |
steve | Update | SUS | earthquake and venting effects | atm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
|
|
|
796
|
Tue Aug 5 02:39:55 2008 |
Koji | Configuration | General | Abs. Len. Meas. ~ Optical Layout on the AP / PSL table 2008-Aug-05 | Here are the PDF and the PNG of the AP and
PSL table layouts.
After this photo, the squeezing setup at |
|
|
795
|
Tue Aug 5 00:05:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ IFR2023A calibration | [B]Work log on August 4th[/B]
o IFR2023A (Marconi) was calibrated by the |
|
|
794
|
Mon Aug 4 22:31:10 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Simple Test for TEM01/10 split | [B]Work log on August 3rd - Part3[/B]
[B]Question:[/B]
|
|
|
793
|
Mon Aug 4 21:48:24 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Scan for TEM00/01/10 | [B]Work log on August 3rd - Part2[/B]
o I tried to measure the frequency of the |
|
|
792
|
Mon Aug 4 16:20:20 2008 |
Dmass | Configuration | Photos | ITMX magnet position relative to OSEMS | We have vented, and taken the following pics
of the magnets to document their position
before we ruin everything. |
|
|
791
|
Mon Aug 4 13:43:02 2008 |
Yoichi | Summary | PSL | FSS loop calibration | As a part of the effort to repair the FSS
loop bandwidth, I tried to calibrate the
FSS loop.
|
|
|
790
|
Mon Aug 4 12:12:20 2008 |
steve | Configuration | VAC | the ifo is at atm | The 40m vac envelope was vented this morning.
P1 is at 760 Torr |
|
|
789
|
Mon Aug 4 05:23:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Measurement for Y-arm completed | Finally, I have completed the abs length and
g-factor measurements for Y-arm.
[COLOR=green][B]>>>GO FOR THE VENT<<<[/B][/COLOR]
|
|
|
788
|
Mon Aug 4 00:56:07 2008 |
Koji | HowTo | General | Abs. Len. Meas. ~ Auto freq scanner with GPIB | [B]Work log on August 3rd - Part1[/B]
o Yesterday I was too much tired of changing |
|
|
787
|
Mon Aug 4 00:37:58 2008 |
Koji | Update | General | Abs. Len. Meas. ~ RF PD at the Y end / Manual frequency scan | [B]Work log on August 2nd[/B]
o Just remind you:
|
|
|
786
|
Sun Aug 3 20:53:54 2008 |
rana | Configuration | PEM | Guralp | We got our repaired Guralp back in the mail
from England (s/n T4157). I plugged it in
to Ben's 3-Guralp breakout box (http://www.ligo.caltech.edu/docs/D/D060506-00.pdf) |
|
|
785
|
Sat Aug 2 18:37:41 2008 |
rana | Update | SUS | OSEM Spectra | [COLOR=darkblue]
The attached PDF file is from the .xml files
that I found from 7/30. Looks like someone
|
|
|
784
|
Sat Aug 2 16:05:38 2008 |
rana | Configuration | Computer Scripts / Programs | mDV update | I did an [B]svn update on our mDV[/B] directory.
Justin has improved it so that the NDS client
binaries
|
|
|
783
|
Sat Aug 2 13:07:23 2008 |
Koji | Configuration | General | The AP table cleaned | During the construction of the independent
PLL I cleaned up some of the unused optics
from the AP table. Essentially this should |
|