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ID Datedown Author Type Category Subject Text Attachments
  837   Thu Aug 14 19:35:54 2008 JenneSummaryIOOPRM in the chamber, ready to pump!Rob, Yoichi, Jenne, Steve

[COLOR=blue][SIZE=2]Summary:  Everything
  
  836   Thu Aug 14 19:08:14 2008 YoichiConfigurationSUSFree swing measurement going onI started free swinging spectra measurement
of all the suspensions now Aug 14 19:05 (PDT).
The watch dogs are all shutdown. Please do
  
  835   Thu Aug 14 15:51:35 2008 josephbSummaryCamerasFOUND! The Missing Standoff!We used a zoom lens on the GC750 to take this
picture of the standoff while inside a plastic
rubber-glove bag.  The standoff with bag
 standoff.png 
  834   Thu Aug 14 11:39:06 2008 steveUpdatePEMparticle counter is out of orderThe 40m ifo paricle counter sensor failed
last night.
  
  833   Thu Aug 14 10:26:45 2008 steveHowToSUSsus cable pin cheater for out of vac dampingThe 40m D25 vacuum feed troughs give you a
mirror image pin count.
 suscabmin.png 
  832   Wed Aug 13 20:13:35 2008 YoichiUpdateSUSPRM stand-off is gluedSteve, Janne, Rob, Bob, Koji, Yoichi

We finally managed to balance the PRM and
 img1.jpg 
  831   Wed Aug 13 17:00:59 2008 steveConfigurationSUSBS sat amp removedThe 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 JohnUpdateLSCAccidental higher order mode resonances in the armsRecently 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]).
 HOMresonances.pngHOMarms2.m 
  829   Tue Aug 12 19:48:24 2008 JenneUpdateIOOPRM standoff is in....mostlyYoichi, Jenne

The missing PRM standoff is now partially
  
  828   Tue Aug 12 12:21:13 2008 josephbConfigurationCamerasVariation in fit over 140 images for GC650 and GC750Used 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 YoichiUpdateComputersHP color printer is backI 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 JenneDAQPEMSeismometer DAQ is being funnyWhile looking at the Ranger seismometer's
output to figure out what our max typical
ground motion is, Rana and I saw that the
 SeisDAQ.pngSeisData.png 
  825   Mon Aug 11 15:07:49 2008 josephbConfigurationComputersProcyon aka fb40m switched to new switchI'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 josephbConfigurationComputers 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 josephbConfigurationComputersContinuing saga of c1susvme1Coming 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, SteveConfigurationComputersc1susvme1 minor problemsAround 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 ranaUpdatePEM2 years of temperature trendSteve 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 ranaUpdatePEM2 years of temperature trendThe PSL RMTEMP alarmed again because it says
the room temperature is 19.5 C. Steve said
in
 Untitled.png 
  819   Sun Aug 10 16:57:02 2008 ranaSummaryPhotosPhotos from Vent 8/4 - 8/8http://www.ligo.caltech.edu/~rana/40m/VentAug08/

I've added the D40 pictures from last week
  
  818   Fri Aug 8 17:54:52 2008 JenneUpdateSUSStandoffs and Guide RodsAfter closer inspection of other small optics,
it is clear that the guide rods should be
[SIZE=2]above[/SIZE] the standoffs on our
 SRM_Standoff_and_guide.JPG 
  817   Fri Aug 8 15:10:35 2008 YoichiUpdateSUSNo 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 YoichiUpdateSUSNo groove in the stand-off ... wait, it is not even a stand-off !Yoichi, Steve, Seiji

We took magnified pictures of the stand-offs
 north-standoff-preview.jpgsouth-standoff-preview.jpgNo-groove.zip 
  815   Fri Aug 8 12:21:57 2008 josephbConfigurationComputersSwitched X end ethernet connections over to new switchIn 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 SharonUpdate MCL Wiener filterI 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
 m_per_m.png 
  813   Fri Aug 8 10:58:05 2008 josephbConfigurationCamerasCameras and gstreamerIn 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 ranaUpdateCamerasNew 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 JenneUpdateSUSAfternoon PRM activitiesRana, Jenne, Yoichi, Dmass

After Yoichi confirmed this morning that
  
  810   Thu Aug 7 12:20:52 2008 YoichiUpdateSUSPRM stand-offs and wireWe removed the side OSEM of the PRM so that
we can see the stand-off on the farther side.
 IMG_1456.JPGIMG_1478.JPGIMG_1470.JPG 
  809   Thu Aug 7 11:54:26 2008 josephbConfigurationCamerasNew code + gstreamer allows for easy saving and compression of imagesModified the CamSnap code to output the image
data stream to standard out.  This can then
be piped into a gstreamer plugin and then
 testVideo.ogm 
  808   Thu Aug 7 10:27:59 2008 ranaUpdateSUSFree swinging OSEM spectraSometimes 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 YoichiUpdateSUSFree swinging OSEM spectraLooks like there are more extra peaks in the
SRM than other optics.
Maybe because it is closer to the door ?
 FreeSwingSpectra.pdf 
  806   Wed Aug 6 22:19:07 2008 YoichiUpdateSUSBS alignmentKoji, Yoichi

We realized that we did not pay attention
  
  805   Wed Aug 6 19:01:15 2008 AlbertoUpdateGeneralITMX and SRM OSEM post-earthquake diagnosticKoji, Yoichi, Alberto

Today we reset the OSEMs on ITMX and SRM
  
  804   Wed Aug 6 13:57:44 2008 MashaSummaryAuxiliary lockingweekly summaryFinished second progress report.

Working on improving the sensitivity of the
  
  803   Wed Aug 6 13:15:57 2008 YoichiUpdateSUSSRM ETMX freeswing spectraAfter yesterday's work on the SRM, I took
free swinging spectra of SRM.
The eigen modes look ok. But there are many
 SRM-ETMX-freeswing.pdf 
  802   Wed Aug 6 11:43:52 2008 KojiUpdateGeneralAbs. Len. Meas. ~ analysis of the TEM01 scan[B]Analysis of the data on August 3th ~ Part
2[/B]
 TEM01fit.png 
  801   Wed Aug 6 11:10:34 2008 KojiUpdateGeneralAbs. Len. Meas. ~ analysis of the TEM00 scan[B]Analysis of the data on August 3th ~ Part
1[/B]
 TEM00fit.pngTEM00FSRfit.png 
  800   Tue Aug 5 17:56:23 2008 AlbertoConfigurationGeneralSRM and PRM inspectionYoichi, Koji, Rana, Steve, Alberto

Today we opened the [B]BSC[/B] to inspect
 IMG_1434.JPGIMG_1456.JPG 
  799   Tue Aug 5 12:52:28 2008 YoichiUpdateSUSITMX, SRM OSEM spectraFree swinging spectra of ITMX and SRM.
ITMX seems to be ok after yesterday's work,
though the OSEM DC values are still a bit
 ITMX-2008_08_05-morning.pdfSRM-2008_08_05-morning.pdf 
  798   Tue Aug 5 10:56:05 2008 AlbertoConfigurationGeneralITMX chamber opened and mirror releasedD-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 steveUpdateSUSearthquake and venting effectsatm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
 eq4h.jpgvent4hr.jpg 
  796   Tue Aug 5 02:39:55 2008 KojiConfigurationGeneralAbs. Len. Meas. ~ Optical Layout on the AP / PSL table 2008-Aug-05Here are the PDF and the PNG of the AP and
PSL table layouts.
After this photo, the squeezing setup at
 optical_layout_ap_table3.pngoptical_layout_ap_table3.pdfoptical_layout_PSL_table1.pngoptical_layout_PSL_table1.pdf 
  795   Tue Aug 5 00:05:57 2008 KojiUpdateGeneralAbs. 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 KojiUpdateGeneralAbs. Len. Meas. ~ Simple Test for TEM01/10 split[B]Work log on August 3rd - Part3[/B]

[B]Question:[/B]
 TEM01_10.png 
  793   Mon Aug 4 21:48:24 2008 KojiUpdateGeneralAbs. Len. Meas. ~ Scan for TEM00/01/10[B]Work log on August 3rd  - Part2[/B]

o I tried to measure the frequency of the
 TEM00.pngTEM01.pngknife_edge.png 
  792   Mon Aug 4 16:20:20 2008 DmassConfigurationPhotosITMX magnet position relative to OSEMSWe have vented, and taken the following pics
of the magnets to document their position
before we ruin everything.
 DSC_0151.JPGDSC_0150.JPG 
  791   Mon Aug 4 13:43:02 2008 YoichiSummaryPSLFSS loop calibrationAs a part of the effort to repair the FSS
loop bandwidth, I tried to calibrate the
FSS loop.
 P7310048.JPGcavity-response.pdfcavity-response2.pdfcavity-gain.pdf 
  790   Mon Aug 4 12:12:20 2008 steveConfigurationVACthe ifo is at atmThe 40m vac envelope was vented this morning.
P1 is at 760 Torr
 vent3h.jpgUntitled.png 
  789   Mon Aug 4 05:23:57 2008 KojiUpdateGeneralAbs. Len. Meas. ~ Measurement for Y-arm completedFinally, 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 KojiHowToGeneralAbs. Len. Meas. ~ Auto freq scanner with GPIB[B]Work log on August 3rd  - Part1[/B]

o Yesterday I was too much tired of changing
 freq_scan.png 
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