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ID Date Author Type Category Subject Text   16844   Tue May 10 18:25:43 2022 Paco Update BHD Green Transmission path [Yuta, Paco] We installed GRX_SM1, GRX_SM2, and finished aligning      16845   Wed May 11 15:49:42 2022 JC Update OPLEV Tables Green Beam OPLEV Alignment [Paco, JC] Paco and I began aligning the Green Beam in the BS Oplev Table. while aligning      16846   Thu May 12 13:46:59 2022 Jc Update Alignment POP Beam [Tega, JC] Tega and I went in to adjust the POP being in the ITMX Table. The beam entered      16847   Thu May 12 17:20:08 2022 Paco Update Alignment POP Beam on CCD [Paco] Got POP beam centered on camera and nominally on the two PDs. Attachment      16848   Thu May 12 19:55:01 2022 Tega Update BHD AS path alignment [Yuta, Tega] We finally managed to steer the AS beam from ITMY chamber, through BS and      16849   Thu May 12 20:11:18 2022 Anchal Update BHD BHDBS Output beams steered out to ITMY table I successfully steered out the two output beams from BHD BS to ITMY table today. This required significant changes on the table,      16850   Thu May 12 20:24:29 2022 yuta Update BHD POX and POY investigation [Anchal, Yuta] We checked POX and POY RF signal chains      16851   Fri May 13 14:26:00 2022 JC Update Alignment LO2 Beam [Yehonathan, JC] Yehonathan and I attempted to align the LO2 beam today through the BS chamber      16852   Fri May 13 18:42:13 2022 Paco Update Alignment ITMX and ITMY sat amp failures [Yuta, Anchal, Paco] As described briefly by JC, there were multiple failure modes going during      16853   Sat May 14 08:36:03 2022 Chris Update DAQ DAQ troubleshooting I heard a rumor about a DAQ problem at the 40m. To investigate, I tried retrieving      16854   Mon May 16 10:49:01 2022 Anchal Update DAQ DAQ troubleshooting [Anchal, Paco, JC] Thanks Chris for the fix. We are able to access the testpoints now but we      16855   Mon May 16 12:59:27 2022 Chris Update DAQ DAQ troubleshooting It looks like the RFM problem started a little after 2am on Saturday morning (attachment 1). It’s subsequent to what I did,      16856   Mon May 16 13:22:59 2022 yuta Update BHD REFL and AS paths aligned at AP table After Xarm and Yarm were aligned by Anchal et al, I aligned AS and REFL path in the AP table.      16857   Mon May 16 14:46:35 2022 Tommy Update Electronics RFSoC MTS Work We followed the manual's guide for setting up MTS to sync on external signal. In the xrfdc package, we update the RFdc      16858   Mon May 16 16:13:01 2022 Yehonathan Update BHD Initial BHD modeling: Damped suspension model I was finally able to set up a stable suspension model with the help of Yuta and I'm now ready to start doing some MICH noise      16859   Mon May 16 19:14:17 2022 Anchal Update BHD Camera set on AS path and BHDBS output path [Anchal, Paco, Yuta] We aligned AS path avoiding any clipping to the AP table where we setup      16860   Tue May 17 18:43:38 2022 Anchal Update BHD Placed SRM in ITMY Chamber [Anchal, Paco, Yuta] SRM Placement SRM was moved from its parked location to the      16861   Wed May 18 08:30:29 2022 Paco Update BHD SRM OpLev [Paco] The SRM Oplev injection and detection paths interfere heavily with the POY11. Due      16862   Wed May 18 09:02:52 2022 Anchal Update BHD WFS1 PD centered I centered WFS1 PD so that IMC WFS Servo does not go out of range.        16863   Wed May 18 17:23:15 2022 Anchal Update BHD Placed PRM in BS Chamber [Anchal, Paco, Yuta, JC] SRM Oplev setup We setup SRM oplev path for the aligned position      16864   Thu May 19 08:51:40 2022 Paco Update BHD SRM OpLev [Paco, Ian] After agreement from Yuta/Anchal, I moved POYM1 yaw to clear the aforementioned      16865   Thu May 19 18:56:08 2022 yuta Update BHD Current OSEM sensor values with all the suspensions aligned Current OSEM sensor values with all the suspensions aligned are attached. For 'BS','ITMX','ETMX','ITMY','ETMY','PRM','SRM','LO1','LO2',      16866   Thu May 19 19:05:59 2022 Anchal Update BHD BS Chamber all work finished, BHD path setup [Anchal, Paco, Yuta] BS Oplev Path The changed position of PRM (40m/16863)      16867   Fri May 20 12:42:23 2022 Tega Update VAC Door installation on the end stations [JC, Tega, Chub] Today we installed the 200 lbs doors on the end station chambers.      16868   Fri May 20 20:03:48 2022 Paco Update BHD ITMY chamber work finished - LO and AS overlapped [Paco, Anchal, Yuta] Today, in short we: Recovered alignment of      16869   Mon May 23 13:16:59 2022 Paco Update BHD End of vent - checks [Paco, Yuta] Prep for closing and pump down. Aligned IFO to maximize      16870   Tue May 24 10:37:09 2022 Tega Update VAC added FRG channels to slow channel ini file [Vacuum gauge sensors] Paco informed me that the FRG sensor EPICS channels are not available on dataviewer,      16871   Tue May 24 11:04:53 2022 JC Update VAC Beginning Pumpdown [JC, Jordan, Paco, Chub] We began with the pumpdown this morning. We started with the annulus volume      16872   Tue May 24 15:21:13 2022 Anchal Update BHD Freeswing tests of new SOS started I modified the script freeSwing.py to use damping loop output switches to free the optic instead of watchdog or coil output      16873   Wed May 25 16:38:27 2022 yuta Update SUS Suspensions quick health check [JC, Yuta] We did a quick health check of suspesions after the pump down.      16876   Thu May 26 15:55:10 2022 Tommy Update Electronics RFSoC Power Spectrum Finished building power spectrum analyzer for the RFSoC. There are two things that I would like to address down the road. First      16878   Fri May 27 12:15:30 2022 JC Update Electronics CRT TV / Monitor 6 [Yehonathan, Paco, Yuta, JC] As we were cleaning up this morning, we heard a high pitch sound that turned into      16879   Fri May 27 15:53:17 2022 Tommy Update Electronics RFSoC MTS Work With some help from the forums, we printed the status of the DAC MTS sync and were able to determined that our board's vivado

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