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  40m Log, Page 22 of 344  Not logged in ELOG logo
ID Date Author Type Categoryup Subject Text Attachments
  7668   Mon Nov 5 09:53:35 2012 JenneUpdateAlignmentAS, REFL camera shotsToday's photos:
AS:
 AS_5Nov2012.pngREFL_5Nov2012.pngIPPOS_IPANG_weekend_trend.png 
  7671   Mon Nov 5 19:38:52 2012 jamie, jenne, ayaka, denUpdateAlignmentmore alignment woesEarlier this morning we thought things
were looking pretty good.  IPPOS, IPANG,
and the AS and REFL spots looked like they
  
  7673   Tue Nov 6 16:38:37 2012 jenne, jamie, ayaka, manasaUpdateAlignmentAlignment back under control againWe had a big alignment party early this
morning, and things are back to looking good. 
We have been very careful not to bump or
  
  7674   Tue Nov 6 17:07:04 2012 jamieUpdateAlignmentAS and REFLAS:   tmp6oTENk.pngtmplamEtZ.png 
  7675   Tue Nov 6 17:22:51 2012 Manasa, JamieUpdateAlignmentAlignment- POY and oplevs

    

       
            
  
  7677   Wed Nov 7 00:10:38 2012 Jenne UpdateAlignmentAlignment- POY and oplevs. photos.Can we have a drawing of what you did, how
you confirmed your green alignment as the
same as the IR (I think you had a good idea
  
  7678   Wed Nov 7 07:11:10 2012 ranaUpdateAlignmentAlignment- POY and oplevs. photos.The way to usually do image subtraction
is to:
1) Turn off the room lights.
  
  7679   Wed Nov 7 09:09:02 2012 SteveUpdateAlignmentAlignment-PRM and SRM  OSEM LL 1.5V are they misaligned?  9amNov7w.png 
  7682   Wed Nov 7 15:17:15 2012 SteveUpdateAlignmentsteering option with pico motor?We have two ready for vacuum 1.5" mirror mounts
with pico motors in our hands. 
 IMG_1795.JPG 
  7683   Wed Nov 7 15:51:44 2012 JenneUpdateAlignmentJamie's tip tilt proposalSteve's elog
7682 is in response to the conversation
we had at group meeting re: Jamie's proposed
  
  7684   Wed Nov 7 17:20:01 2012 jamieUpdateAlignmentJamie's tip tilt proposal

    

       
            
  
  7686   Wed Nov 7 23:22:45 2012 ranaUpdateAlignmentJamie's tip tilt proposal With Picos, we lose the ability to
dither the input beam as well as align the
beam with the IFO locked. And the active
  
  7689   Thu Nov 8 20:11:54 2012 JenneUpdateAlignmentAS steering moved out of POY's way, 2 green beams onto PSL table[Jenne, Jamie, Manasa, Ayaka]
 
Flipped mount of OM2, moved OM2 behind
 AS_8Nov2012.pngREFL_8Nov2012.png 
  7690   Thu Nov 8 20:54:08 2012 Manasa, AyakaUpdateAlignmentReconfirming on IPPOS, IPANG and oplevs centering

    

       
            
  
  7692   Fri Nov 9 08:11:57 2012 SteveUpdateAlignmentnothing moved - all good Oplevs and IP ANG are still centered.
Why  do the SRM and PRM move 5X 
more ?  I could not check the sensing
 opsingGOOD.pngop8h.png8amF.pngkeepfailing.png 
  7715   Thu Nov 15 03:09:08 2012 JenneUpdateAlignmentNo good progress, many optionsI didn't make any concrete progress today.
AS and REFL cameras are in place, and Manasa
has put ND 0.5 filters on both. I used a
  
  7720   Sat Nov 17 03:30:13 2012 Den, AyakaUpdateAlignmentred in armsWe aligned accurately 00 green in yarm,
changed voltage on PZT2 to see red flashing
at TRY at the normalized level 0.2-0.3. The
  
  7721   Sat Nov 17 18:02:14 2012 DenUpdateAlignmentred in arms

    

       
            
  
  7722   Sat Nov 17 22:50:17 2012 KojiUpdateAlignmentred in armsYou have constraints for the IR beams (i.e.
one PZT and one BS for 8 dofs), so now you
need to align the arms for the input IR beams.
  
  7723   Mon Nov 19 15:12:52 2012 JenneUpdateAlignmentYarm locked IR

    

       
            
  
  7772   Sat Dec 1 00:24:37 2012 Den, AyakaUpdateAlignmentBS chamberToday at 11:13 AM the stack of invacuum
BS table was kicked and IFO misaligned. We
adjusted PZT2 voltage by ~20 V in yaw such
 push.png 
  7773   Sat Dec 1 13:56:38 2012 ranaUpdateAlignmentBS chamber 
 Whoever was working
around the BS chamber at 11 AM on Friday
  
  7776   Mon Dec 3 07:40:00 2012 SteveHowToAlignmenthow was the BS chamber misalinged

    

       
            
 BSsupport.jpg 
  7784   Tue Dec 4 18:53:50 2012 AyakaUpdateAlignmentBS chamberBS chamber seemed to be kicked again around
10:00 am today.
I moved PZT mainly in YAW and locked
 BSchamb1204.pdf 
  7795   Thu Dec 6 02:55:46 2012 DenUpdateAlignmentc1assToday I've set c1ass model to improve alignment
of X and Y arms. I've added all measured
parameters to ASS scripts.  I've also added
 xarm_ass.pngyarm_ass.png 
  7796   Fri Dec 7 00:08:39 2012 ranaUpdateAlignmentc1ass 
 This looks like a good performance
tuning for these. It would be good if you
  
  7797   Fri Dec 7 02:02:23 2012 DenUpdateAlignmentc1ass

    

       
            
  
  7816   Wed Dec 12 16:52:12 2012 JenneUpdateAlignmentPR2_face, PR3_back cameras in placeI have setup cameras looking at the back
of PR3 (through the north viewport on the
MC chamber) and the face of PR2 (through
 PR2_face_12Dec2012_SpotImage.pngPR2_face_12Dec2012_SpotImage_pixelsTimes3.pngPR3_back_12Dec2012_SpotImage.pngPR3_back_12Dec2012_SpotImage_pixelsTimes3.png 
  7839   Mon Dec 17 14:45:01 2012 JenneUpdateAlignmentVideos with PRMI locked[Jamie, Jenne]
Koji and Jamie locked the PRMI, and
then Jamie and I took some videos. 
  
  7852   Tue Dec 18 16:37:17 2012 JamieUpdateAlignmentPost vent, pre door removal alignment[Jenne, Manasa, Jamie]
Now that we're up to air we relocked
the mode cleaner, tweaked up the alignment,
 mcspot_post_vent.pdf 
  7877   Mon Jan 7 00:08:16 2013 JenneHowToAlignmentIn-vac planList of things to do, in order:
* Remove BS heavy door. 
Steve,
  
  7878   Mon Jan 7 16:45:30 2013 JenneUpdateAlignmentRisers to bring TTs to correct beam height are wrong[Jenne, with backup from Koji and Steve]
Short version:
TT1 was installed without a riser,
 SR3_7Jan2013_ExtraHoleMachinedAtCorner.JPGTT1_7Jan2013_BasePlateAndRiserHoleMismatch.JPG 
  7883   Tue Jan 8 17:54:34 2013 JenneUpdateAlignmentRisers to bring TTs to correct beam height are in use 
 [Jenne, EricQ, Nic, MattA]
* TT1 is in place, aligned so beam
  
  7886   Wed Jan 9 18:59:01 2013 JenneUpdateAlignmentTT2 installed, PRM oplev layout changed[Jenne, Manasa]
PZT2 was removed from the BS table,
and packed away in a foil-lined plastic box.
  
  7888   Thu Jan 10 12:22:36 2013 JenneUpdateAlignmentTT matrix is funny


   
        
            
  
  7890   Thu Jan 10 15:30:33 2013 JenneUpdateAlignmentTT2 pins swapped, ITMX door open 
[Bob, Manasa, Jenne]
We opened the ITMX heavy door. 
  
  7893   Fri Jan 11 17:32:10 2013 ManasaUpdateAlignmentTT2 connections 
 Manasa, Jenne
We started off to try and get TT2
  
  7894   Fri Jan 11 19:12:20 2013 KojiUpdateAlignmentTT2 connectionsWas the connection   
  7896   Mon Jan 14 10:12:09 2013 JenneUpdateAlignmentTT2 connections


   
        
            
  
  7897   Mon Jan 14 12:08:39 2013 jamieUpdateAlignmentTT2 connections

    

       
            
  
  7901   Tue Jan 15 19:26:35 2013 jamieUpdateAlignmentAdjustment of active TTs and input alignment[Jamie, Manasa, Jenne]
We started by verifying that the
tip-tilts were getting the correct signals
  
  7902   Tue Jan 15 20:00:42 2013 ManasaUpdateAlignmentAdjustment of active TTs and input alignment 
Just for reference! The changes made
to the TT matrix in order to fix the polarity
  
  7912   Thu Jan 17 11:01:19 2013 JenneUpdateAlignmentYesterday's alignment work[Jamie, Jenne, Manasa]
Yesterday's goal was to get the input
beam centered on the PRM, the BS and ETMY
  
  7915   Thu Jan 17 19:33:53 2013 ManasaUpdateAlignmentPRM oplev We had to work on redesigning the
oplev layout in BSC when I found that the
positions of the mirrors were clipping IPPOS
  
  7919   Fri Jan 18 15:08:13 2013 jamieUpdateAlignmentalignment of temporary half PRC[jenne, jamie]
Jenne and I got the half PRC flashing. 
We could see flashes in the PRM and PR2 face
  
  7949   Mon Jan 28 21:32:38 2013 jamieUpdateAlignmenttweaking of alignment into half PRC[Koji, Jamie]
We tweaked up the alignment of the
half PRC a bit.  Koji started by looking
  
  8070   Tue Feb 12 20:42:36 2013 JamieUpdateAlignmentIFO alignment in prep for in-air PRMIYuta, Manasa, Jamie, Jenne, Steve, Rana
Starting this morning, we removed
the temporary half PRC mirror in front of
  
  8071   Tue Feb 12 20:57:47 2013 JenneUpdateAlignmentIFO alignment in prep for in-air PRMIWe should check MC spot positions to see
what they are. 
Also, I'm not thrilled about the
  
  8073   Tue Feb 12 23:24:17 2013 yutaUpdateAlignmentIFO alignment in prep for in-air PRMI[Manasa, Yuta]

Lot's of alignment work, 
  
  8081   Wed Feb 13 22:09:26 2013 JenneUpdateAlignmentREFL is not clippedWe need to calculate whether this level
of astigmatism is expected from the new active
TT mirrors, but 
  
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