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ID Date Author Type Category Subject Text   6236   Mon Jan 30 08:17:06 2012 steve Update IOO PMC                                6237   Mon Jan 30 16:18:51 2012 steve Update PEM Roscolux colored film transmittance at 1064 nm    Roscolux filter films  #74 night blue,  0.003" thick       6239   Tue Jan 31 08:44:10 2012 steve Update IOO laser shuts down    The 2W Innilight shutdown shut when I opened side door for safety scan.      6241   Tue Jan 31 17:13:49 2012 steve Update IOO only the PSL laser is off   The 2W PSL laser is turned off.       6242   Wed Feb 1 17:00:57 2012 steve Update IOO laser is back ON                                6245   Fri Feb 3 14:47:51 2012 steve Update PEM laser interlock drawing  Rough draft of      updated interlock drawing by Ben is here.      6247   Fri Feb 3 16:13:49 2012 steve Update PEM LED lights for chamber illumination Cold LED lights replaced hot halogen ones. Flat LED MYAL 6S,  model #112560002       6250   Fri Feb 3 17:31:09 2012 steve Update General green welding glass Schott, green welding glass, shade 14, 3 mm thick  was measured in the beam path of 1.2W, S polarization of 1064nm at      6256   Mon Feb 6 11:07:21 2012 steve Update SUS Oplev QPD Sum Trends are suspicious                                6257   Mon Feb 6 17:06:11 2012 steve Update SUS oplev transferfunction of PIT: ETMY & ETMX Kiwamu showed me how to do transferfunction of oplev pitch      6259   Tue Feb 7 16:30:46 2012 steve Update SUS ALL oplev PIT transfer functions SUS- BS, ITMX, ITMY, PRM, SRM, ETMX & ETMY_OLPIT transfer funtion with sine wave excitation 0.1 amplitude:  7x    6260   Wed Feb 8 16:37:02 2012 steve Update SUS ITMX OSEM LL is sick I'm driving C1:SUS-ITMX_OLYAW and PIT_EXC with amplitude 0,1-0.3 while taking transfer funtions of oplev.      6263   Thu Feb 9 16:46:02 2012 steve Update SUS ALL oplev YAW transfer functions                            7x    6264   Thu Feb 9 17:11:05 2012 steve Update SUS more OSEM problems These observations of the OSEMs  were taken while taking transfer functions of oplev YAW at excitation amplitude 0.1      6268   Fri Feb 10 11:01:31 2012 steve Update IOO crazy ground motion                                6269   Fri Feb 10 11:46:44 2012 steve Update IOO seismic noise back to normal The shaking has stopped at 9:32am  The AC was turned back on at 11:30am  We still do not have any explanation      6270   Fri Feb 10 15:46:59 2012 steve Update SUS ruby wire standoff Finally I found a company who can do Koji's improved  -hard to make-  specification on ruby or sapphire wire standoff.      6273   Fri Feb 10 15:54:27 2012 steve Update PEM AC turned back ON The air cond was off for 2 hrs.  I just switched it back on at 15:51      6278   Tue Feb 14 08:22:27 2012 steve Update SUS sus damping restored ITMX, PRM and BS watchdogs are tripped. They were restored. Stable MC was disabled so I can use      6280   Tue Feb 14 17:09:05 2012 steve Update General reflectivity of green welding glass  Schott, Athermal green welding glass, shade #14 reflectivity was measured in 1.2W,  ~1 mm diameter  beam of MC reflected.      6282   Wed Feb 15 11:34:01 2012 steve Update   under the shouth end optical table I added an U channel based bottom shelf at the south end today.      6288   Thu Feb 16 09:59:16 2012 steve Update ASC IP- ANG Initial pointing or IP-ANG is a pointing monitor of the MC. This beam is launched after the second  pzt  steering      6299   Tue Feb 21 08:33:16 2012 steve Update Green Locking periscope adapter plate Two extender plates ready for cleaning. The existing optical table tops have 38" OD. Using two of these the OD will be 44"      6308   Thu Feb 23 09:09:33 2012 steve Update SAFETY safety checks Emergency exit lights were inspected:  2 out of 13 batteries have to be replaced One of the Halon fire extinguishers      6309   Thu Feb 23 10:53:54 2012 steve Update SUS oplev PIT transfer functions  Oplev transfer functions PIT UGF were optimized to be at 2-3 Hz with 60 degree minimum phase margin by adjuting oplev gains.      6312   Fri Feb 24 08:06:52 2012 steve Update SUS sus restored                                6322   Mon Feb 27 10:21:37 2012 steve Update SAFETY safety audit tomorrow morning                                6323   Mon Feb 27 14:35:22 2012 steve Update SUS oplev YAW transfer functions  The BS and the PRM have 3.3 Hz resonant gain filters that kill the phase margins.        6329   Tue Feb 28 11:20:51 2012 steve Update SAFETY safety audit 2012 Correction list by visiting safety committee, Haick Issaian is not shown: 1,  update laser, crane operator      6344   Thu Mar 1 09:26:50 2012 steve Update SUS SOS baffle plates are ready  Green welding glass 7" x 9"   shade #14 with 40 mm hole and mounting fixtures      6370   Wed Mar 7 11:20:23 2012 steve Update SUS oplev qpd offsets zeroed All oplev qpd quadrons were zeroed by offset  in blocked dark condition.      6389   Fri Mar 9 10:17:06 2012 steve HowTo PEM do not leave tables open Type: How not to Please do not leave optical tables open! You will be held responsible for creating      6390   Fri Mar 9 10:44:57 2012 steve Update RF System OSA Optical spectrum analyzers like the Attachment made by Coherent , Meles Griot- CVI and Spectral Product are all discontinued.      6395   Fri Mar 9 16:00:46 2012 steve Update Green Locking laser emergency shut down switch replaced at the south end Over-sized local laser emergency switch was held by large C clamp at the south end. This was replaced by a smaller one and it      6413   Wed Mar 14 10:06:26 2012 steve Update Green Locking dichroic mirror quotes Dichroic mirror quotes are in the wiki. ATF is pricy.      6429   Tue Mar 20 09:59:01 2012 steve Update IOO Laser tripped off Today is janitor day. It still does not explain why the 2W Innolight tripped off about an hour ago. All back to normal.       6430   Tue Mar 20 16:53:48 2012 steve Update PEM cranes maintenance & certified inspection of 2012 Fred Goodbar of Konecrane has completed the annual certified crane inspection and maintenance of our cranes as required in      6432   Wed Mar 21 10:31:28 2012 steve Update SAFETY AC power to ETMY turned off ETMY sus damping was disabled. Green locking laser and associated electronics turned off. Computers and power supplies turned off at      6433   Wed Mar 21 11:32:47 2012 steve Update SAFETY AC power to ETMX turned off                                6434   Wed Mar 21 19:12:27 2012 steve Update Computers AC power back on both ends                                6435   Thu Mar 22 08:14:21 2012 steve Update Green Locking dichroic mirror quotes with large wedge                                6469   Fri Mar 30 08:58:37 2012 steve Update SAFETY Safety glasses checked Bob cleaned all safety glasses in 10 % Liquinox soap in water solution first.  The  transmittance of glasses were checked      6470   Fri Mar 30 09:37:13 2012 steve Update SAFETY safety audit 2012 CORRECTIONS                                6472   Fri Mar 30 10:24:14 2012 steve Update SUS new OSEM locking plunger                                6473   Fri Mar 30 17:37:09 2012 steve Update General cutting green welding glass for beam dumps                                6558   Tue Apr 24 09:58:37 2012 steve Update PEM earthquake 3.9 magnitude Local eq shakes the lab      6559   Tue Apr 24 11:27:51 2012 steve Update PEM new chairs We received 6 new  chairs stools      6571   Thu Apr 26 09:22:17 2012 steve Update   under the east end optical table                    6577   Fri Apr 27 08:11:19 2012 steve Update CDS c1ioo condition          6643   Mon May 14 08:49:47 2012 steve Update SUS ETMY damping restored ETMY sus damping restored.

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