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ID Date Author Type Category Subject Text   4134   Tue Jan 11 13:32:52 2011 josephb, kiwamu Update CDS Updated some DAQ channel names [Joe, Kiwamu] We      4135   Tue Jan 11 14:05:11 2011 josephb Update Computers Martian host table updated daily I created two simple cron jobs, one running on linux1 and one running on nodus, to produce an updated copy of the martian host table      4136   Tue Jan 11 16:04:17 2011 josephb Update CDS Script to update web views of models for all installed front ends I wrote a new script that is in /opt/rtcds/caltech/c1/scripts/AutoUpdate/ called  webview_simlink_update.m.       4137   Tue Jan 11 17:08:43 2011 Suresh Configuration PSL replaced the pzt-steering mirror on PSL [Rana, Jenne, Suresh] Yesterday,      4138   Tue Jan 11 18:41:43 2011 Jenne Update IOO Put MC PZT offset onto MC board, instead of on awkward cart [Larisa and Jenne] We wanted to get rid of the awkward cart that was sitting behind the 1Y1 rack.       4139   Tue Jan 11 21:08:19 2011 Joonho Summary Cameras CCD cables upgrade plan. Today I have made the CCD Cable Upgrade Plan for improvement of sysmtem.      4140   Wed Jan 12 01:38:52 2011 Koji Update IOO Put MC PZT offset onto MC board, instead of on awkward cart I can not think of any reason that the input impedance of 13kOhm between the pos/neg inputs produces such a big change at the      4141   Wed Jan 12 01:39:49 2011 kiwamu Update LSC locked X arm [Suresh, Kiwamu]      4142   Wed Jan 12 02:41:19 2011 kiwamu Update General daytime tasks for tomorrow [Rana, Kiwamu] Here is the list for the daytime tasks of tomorrow,      4143   Wed Jan 12 17:22:47 2011 Suresh Configuration Locking MC demod phase adjusted to minimise the I output [Koji, Suresh] We wanted to check and make sure that the relative phase of the two inputs      4144   Wed Jan 12 17:50:21 2011 josephb Update CDS Worked on c1lsc, MC2 screens [josephb, osamu, kiwamu] We      4145   Wed Jan 12 22:19:54 2011 Koji Update IOO MC flakiness solved [Koji Suresh Kiwamu] Suresh modified the MC board to have +5V offset at the output. (To be reported      4146   Wed Jan 12 22:33:24 2011 kiwamu Update CDS MC2 dewhitening are healthy except for UR I briefly checked the MC2 analog dewhitening filters. It      4147   Wed Jan 12 22:39:16 2011 Suresh Update IOO Put MC PZT offset onto MC board, instead of on awkward cart                                4148   Thu Jan 13 03:00:01 2011 Jenne Update IOO WFS shenanigans My goal this afternoon was to      4149   Thu Jan 13 12:56:57 2011 rana Update IOO WFS shenanigans Actually, I just found out that there are different flavors of 'YAG-444'.  There's a YAG-444AH and also a YAG-444-4AH.      4150   Thu Jan 13 14:21:13 2011 josephb Update CDS Webview of front end model files automated After Rana pointed me to Yoichi's MEDM snapshot script, I learned how to use Xvfb, which      4151   Thu Jan 13 16:34:02 2011 josephb Update Computers 32 bit matlab updated There was a problem with running the webview report generator in matlab on Mafalada.  It      4152   Thu Jan 13 16:41:07 2011 josephb Update CDS Channel names for LSC updated I renamed most of the filter banks in the c1lsc model.  The input filters are now labeled based on the RF photodiode's      4153   Fri Jan 14 01:55:26 2011 kiwamu Update LSC X arm locked with C1LSC digital control  [Koji, Kiwamu]      4154   Fri Jan 14 11:29:00 2011 kiwamu Update LSC expected open loop TF of X arm locking Here shows a plot of the expected open loop transfer function (TF) for the X arm locking.      4155   Fri Jan 14 12:29:57 2011 Koji Update Locking Next steps for the green These are the next steps for a better operation of the arm locking. They are suitable for the day time activities      4156   Fri Jan 14 12:34:08 2011 Koji Update LSC X arm locked with C1LSC digital control My feeling was that the saturation was caused by the LSC whitening filter which was always on.      4157   Fri Jan 14 17:13:39 2011 josephb Update Cameras Pylon driver for Basler Cameras installed on Megatron After getting some help from the Basler technical support, I was directed to the following ftp link:      4158   Fri Jan 14 17:58:50 2011 Osamu Configuration General Standalone RT setup  I'll be gone to Hanford site next week and come back to Caltech on 24th's week. I setup a standalone RT system at      4159   Fri Jan 14 20:37:00 2011 kiwamu HowTo Green Locking plan for this month  I summarized how we proceed our green locking in this month on the wiki. Since step1 and 2 shown on the wiki      4160   Fri Jan 14 20:39:20 2011 rana Update CDS Updated some DAQ channel names I like this activateDAQ script, but someone      4161   Sun Jan 16 02:20:59 2011 Suresh Update Locking comparing the PSL with the X-end-NPRO through the green beat Objective:       We wish to study the coherence of the two NPROs      4162   Mon Jan 17 04:10:10 2011 rana Configuration Computers NTPD restarted on c1dcuepics (to fix the MEDM screen times) I installed NTPD on Megatron (its Ubuntu, so different from the CentOS workstations). Here's the terminal cap to show that its      4163   Mon Jan 17 15:31:50 2011 josephb Update Cameras Test the Basler acA640-100gm camera The Basler acA640-100gm is a power over ethernet camera.  It uses a power injector to supply power      4164   Mon Jan 17 20:13:38 2011 rana Update Electronics POX_11 Optical TF I used 50 mA to drive the laser diode. The light is split 50/50 between the DUT (Device Under Test) and the New Focus 1611      4165   Tue Jan 18 10:25:23 2011 steve Update PEM vertex crane work this week The crane people are here. The Vertex chambers are covered with plastic. The PSL HEPAs will be running on high during the day.      4166   Wed Jan 19 03:37:30 2011 Suresh Update Locking comparing the PSL with the X-end-NPRO through the green beat      [Kiwamu, Suresh]      4167   Wed Jan 19 04:25:54 2011 Kevin Update Electronics POX Transfer Functions I redid the optical POX transfer functions and updated the wiki at http://lhocds.ligo-wa.caltech.edu:8000/40m/Electronics/POX. I measured each transfer function      4168   Wed Jan 19 10:31:24 2011 josephb Update elog Elog restarted again Elog wasn't responding at around 10 am this morning.  I killed the elogd process, then used the      4169   Wed Jan 19 10:45:00 2011 Koji Update Electronics POX Transfer Functions TF looks fine except for the large peak at around 200MHz which has been reported by Rana. The time series and the spectrum      4170   Wed Jan 19 17:00:23 2011 Kevin Update Electronics POX Transfer Functions  The value of I_dc was a mistake. The value should be 240 µA. The widths of the resonance peaks      4171   Thu Jan 20 00:39:22 2011 kiwamu HowTo CDS DAQ setup : another trick Here is another trick for the DAQ setup when you add a DAQ channel associated with a new front      4172   Thu Jan 20 01:50:30 2011 Kevin Update Electronics POX Transfer Functions [Koji, Kevin] We fit the entire POX optical transfer function from 1 MHz to 500 MHz in LISO. The      4173   Thu Jan 20 04:03:02 2011 kiwamu Update CDS c1scy error  I found that c1scy was not running due to a daq initialization      4174   Thu Jan 20 04:43:28 2011 kiwamu Update Green Locking status update: PLL connected to ADC  I connected the PLL signal to the ADC on c1ioo.       4175   Thu Jan 20 10:15:50 2011 josephb Update CDS c1scy error This is caused by an insufficient number of active DAQ channels in the C1SCY.ini file located      4176   Thu Jan 20 15:15:39 2011 kiwamu Update Green Locking status update: PLL connected to ADC I realized that the black AA board I mentioned      4177   Thu Jan 20 15:39:59 2011 Aidan Update Locking Upper limit on frequency noise of ADC [Aidan, Kiwamu] Kiwamu and I plugged the output from a DS3456 function generator into the ADC      4178   Thu Jan 20 17:00:39 2011 Aidan Configuration Locking Ballpark figures for Green Locking PLLs (Digital vs Analogue) If we use a digital PLL for locking the frequency of the PSL and END green lasers then we can expect a UGF of around 1kHz (assuming      4179   Thu Jan 20 18:20:55 2011 josephb Update CDS c1iscex computer and c1sus computer swapped Since the 1U sized computers don't have enough slots to hold the host interface board, RFM      4180   Thu Jan 20 22:17:12 2011 rana Summary LSC FPMI Displacement Noise I found this old plot in an old elog entry of Osamu's (original link).      4181   Fri Jan 21 02:45:43 2011 kiwamu Update Green Locking interface for PLL to ADC  [Suresh, Kiwamu]         4182   Fri Jan 21 11:45:01 2011 Aidan Configuration Locking Ballpark figures for Green Locking PLLs (Digital vs Analogue)                                4183   Fri Jan 21 15:26:15 2011 josephb Update CDS c1sus broken yesterday and now fixed [Joe, Koji] Yesterday's CDS swap of c1sus and

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