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ID Date Author Type Category Subject Text   2819   Tue Apr 20 13:37:36 2010 Jenne Update Green Locking 1W NPRO output profile                                2820   Tue Apr 20 18:02:22 2010 Jenne Update COC New SRM and PRM Hung [Jenne, Steve] We removed the old SRM and PRM from their cages, and are temporarily storing      2825   Wed Apr 21 15:53:57 2010 Jenne Update PEM Seismometers now on the granite slab The 3 seismometers are now on the granite slab.  The Ranger is now aligned with the Xarm (perpendicular to the Mode Cleaner)      2833   Thu Apr 22 20:28:40 2010 Jenne Update PEM Seismometer Noise Characteristics                                2889   Thu May 6 18:25:20 2010 Jenne Update PEM Acc power supply turned on The accelerometer power supply / preamp board has been OFF because of exciting new accelerometer measurements.  It's now      2892   Thu May 6 19:51:22 2010 Jenne Update PEM New 'Seismic Spectrum of the 40m' For reasons unknown, the seismic spectra posted above Rosalba has been wrong since ~January when it was first posted.       2934   Fri May 14 16:19:22 2010 Jenne Update PEM Guts of a Guralp [Jenne, Rana] We took apart and examined one of the Guralp seismometers this afternoon.       2941   Mon May 17 19:42:11 2010 Jenne Update IOO First steps toward MC mode measuring [Jenne, Kevin, Steve] We made some progress toward getting the MC's beam profile measured.  In      2950   Tue May 18 23:03:08 2010 Jenne Update IOO No real progress.... [Jenne, Kevin] No real progress today.  We opened the chambers and again tried to lock      2952   Wed May 19 16:00:18 2010 Jenne Update IOO Hooray! We locked the MC! (and some other stuff) [Jenne, Kevin] We opened up the MC chambers again, and successfully got the MC locked today!       2961   Thu May 20 20:03:37 2010 Jenne Update SAFETY Don't walk down the Y(new convention) arm tonight! Please don't go down the Yarm (Old Xarm) for right now, or      2962   Fri May 21 00:21:24 2010 Jenne Update SAFETY Don't walk down the Y(new convention) arm tonight! All clear.      2963   Fri May 21 00:30:44 2010 Jenne Update VAC TP3 fore pump is very loud [Jenne, Kiwamu, and Steve via phone] Around 9:30pm, Kiwamu and I came back from dinner, and were getting ready      2964   Fri May 21 00:51:06 2010 Jenne Update IOO First MC mode measuring (hopefully) done [Jenne, Kiwamu, Steve] Round 1 of measuring the MC mode is pretty much done.  Yay.      2987   Wed May 26 00:50:16 2010 Jenne Update IOO Mirrors moved in prep for round 2 of MC mode measuring [Jenne, Kevin, Kiwamu] We moved some optics in preparation for measuring the MC mode after the first      2993   Wed May 26 15:34:00 2010 Jenne Update IOO Mirrors moved in prep for round 2 of MC mode measuring                                3006   Fri May 28 11:26:35 2010 Jenne Update PEM New Foam Box installed                                3010   Fri May 28 13:51:51 2010 Jenne Update VAC vacuum work                                3011   Fri May 28 14:24:30 2010 Jenne Update VAC vacuum work I just got off the phone with Alberto and Kiwamu, and I'm going to try to recalculate things based on their measurements of the      3045   Thu Jun 3 14:13:20 2010 Jenne Update IOO mode measurement of new input optics                                3076   Mon Jun 14 22:16:08 2010 Jenne Update IOO Mode scan after Mode Matching Telescope [Jenne, Kiwamu] We measured the mode after the Mode Matching Telescope.       3094   Mon Jun 21 18:01:34 2010 Jenne Update 40m Upgrading SRM, PRM hung, magnets inspected [Jenne, Kiwamu, Rana, Eric Gustafson] The SRM and PRM have been re-hung, and are ready for installation into the chambers.       3098   Tue Jun 22 18:56:32 2010 Jenne Update Environment Bad placement of recycling bin Someone has been moving the big blue recycling bin in front of the laser-chiller-chiller (the air conditioner in the control room).       3099   Tue Jun 22 20:07:08 2010 Jenne Update 40m Upgrading First attempt at Tip Tilt hanging [Jenne, Steve, Nancy, Gopal] We made an attempt at hanging some of the Tip      3104   Wed Jun 23 12:47:43 2010 Jenne Update SUS PRM, SRM ready for vacuum I fitzed with the PRM and SRM briefly, and I now believe      3115   Thu Jun 24 13:02:59 2010 Jenne Update Computers Some lunchtime reboots [Jenne, Megan, Frank] We rebooted c1iovme, c1susvme1, and c1susvme2 during lunch.  Frank is going      3121   Fri Jun 25 15:22:45 2010 Jenne Omnistructure SAFETY No entry to the 40m LVEA until further notice!                                                                                                                   3131   Tue Jun 29 08:55:18 2010 Jenne Frogs Environment We're being attacked!        3133   Tue Jun 29 11:48:17 2010 Jenne Configuration SAFETY Back in LASER HAZARD mode. [Steve, Kiwamu, Jenne] The 40m is now      3139   Tue Jun 29 20:47:19 2010 Jenne Update PEM Terminator put on Guralp Box A little D-sub terminator was put on the Gur1 input to the Guralp box, to check again the noise level of the box.      3147   Wed Jun 30 14:38:04 2010 Jenne Update PEM Guralp terminator is switched I moved the Guralp box's input terminator from Gur1 to Gur2 a minute or so ago to check the other channels.      3149   Wed Jun 30 17:30:54 2010 Jenne Update PEM Seismometers moved for MC Wiener work Now that the MC is back up and running, I put the Guralp seismometers at the ends of the mode cleaner.  Gur1 is near MC2,      3154   Thu Jul 1 14:28:39 2010 Jenne Update PEM MC1 Accelerometers in place Kevin sent me an email with top secret info on where one of the other accelerometer cubes was hiding (it was with his shaker      3162   Tue Jul 6 17:38:27 2010 Jenne Update SUS Tip Tilt Progress! [Jenne, Kyung Ha] We successfully suspended the 4 eddy current dampers for the first Tip Tilt.       3171   Wed Jul 7 19:41:27 2010 Jenne Update SUS 1.5 more ECD sets suspended for tip tilts [Jenne, Kyung Ha] We made some good progress on suspending the Tip Tilt ECDs today.  We finished      3172   Wed Jul 7 22:22:49 2010 Jenne Update Computers Some channels not being recorded!!! [Rana, Jenne] We discovered      3196   Mon Jul 12 14:22:36 2010 Jenne Summary PSL Things I did to the PSL today: Refcav, PMC, cameras, etc.                                3205   Tue Jul 13 11:51:19 2010 Jenne Update PEM Gur1 has no signal?!?!?!?! [Sanjit, Jenne] Sanjit discovered that the Gur1 channels are all digital 0.  We determined that      3211   Tue Jul 13 23:20:37 2010 Jenne Update PEM Gur1 has no signal?!?!?!?!                    3220   Wed Jul 14 16:39:06 2010 Jenne Update DAQ Debugging Guralp and reboots [Joe, Jenne] Joe got on the phone with Alex, and Alex's magic Alex intuition told him to ask      3249   Tue Jul 20 11:49:31 2010 Jenne Update SUS Some Suspensions not damping [Jenne, Koji] I moseyed into the control room this morning, to find ITMX and ITMY both with      3295   Mon Jul 26 20:30:35 2010 Jenne Update SUS 2 Tip Tilts suspended and balanced [Koji, Jenne] We were on Team Cleanroom, while Kiwamu and Alberto were on Team Chamber.       3303   Tue Jul 27 23:46:45 2010 Jenne Update SUS Q measurements of 2 TTs [Koji, Jenne] We took measurements of the Q of all the modes that we could think of for      3314   Wed Jul 28 18:24:57 2010 Jenne Update Green Locking 2 Green Periscopes have mirrors, aligned [Koji, Jenne, Kiwamu] This is to describe the work that went on in the Cleanroom today.  Kiwamu's      3334   Fri Jul 30 17:24:22 2010 Jenne Update PEM Guralps back in the 40m I brought the GUR2 seismometer back from Bridge so I can get some more MC/Seismic data during the next week while we're pumped      3349   Mon Aug 2 18:02:46 2010 Jenne Update PEM Seismometer Update: Still not good, but perhpas getting better Today's seismometer diagnosis activities are still underway, this is just an update (since I did some reboots):      3351   Tue Aug 3 01:51:01 2010 Jenne Update PEM Seismometer Update: Still not good, but perhaps getting better                                3354   Tue Aug 3 11:50:16 2010 Jenne Update PEM Seismometer Problem Tracked down After some cable swapping this morning, I have determined which cable is bad.  It's the Gur1 cable between the seismometer      3356   Wed Aug 4 03:01:56 2010 Jenne Update PEM Catastrophic Cable Failures                                3362   Wed Aug 4 20:15:07 2010 Jenne Update PEM Yay! Guralps work again! After much hassle, the Guralp cable from the ADC Out of the breakout box to the ADC is fixed, and

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