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| ==== Report for week of 4/2 ==== | ==== Report for week of 7/17 ==== * We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement. * We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force. * We calibrated all the PI LVDTs. * We set the SF damper ring gap. * We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods. * Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank). * We installed more cable clamps on the SR2 PI. |
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| * Fujii-kun and Yamamoto-kun got the SR3 real time model running. * We received the SR3. * However Mark and Tanioka-kun found Hirose-san had applied the First Contact patterns on the wrong sides, so we took it to Yamamoto-san's lab and Toyama University and re-applied the FC properly. We also bounced a 1064 nm beam off it to verify that the HR and AR coatings were not also swapped (they were OK). * We made magnet-standoff assemblies for both SR3 and SRM, and set up for gluing the prisms and magnets. We will attach the prisms and magnet-standoffs on Monday. * Hirata-san did inventory of the SR3/SRM payload parts received last week and started on the inventory of screws. * Fujii-kun, Enzo and team finished the preparation, adjustment of the SFs and BFs. * They calibrated one SF and BF. (The remaining one SF and BF will take about another day. Also, the FR stops need to be checked.) * Enzo and Kozu-kun finished setting up the SR3 and SRM racks. (The SRM rack still lacks a front-end, and power and network connections, but the SR3 is now ready for testing.) * Shoda-san worked on getting quotes for the ballast masses, on design of the SRM metal mass, and on splitting the BS model to reduce the load on the front-end computer. |
==== Plan for week of 7/23 ==== * Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri. * Hirata-san at Kamioka Mon-Thu. * Mirapro moves assembly frame ≈7/25 (Wed). |
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| ==== Plan for week of 4/9 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka * Tanioka-san at Kamioka, but possibly doing PEM stuff. * Others at Kamioka * -- * Finish SRM BF and SF calibration * Finish IMs and IRMs * Glue SR3 mirror ==== Plan for week of 4/16 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka * Tanioka-san at Mitaka? * Others at Kamioka * -- * Build 1xRM * Start SR3 Hang * Align assembly frame. ==== Plan for week of 4/23 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka? * Mark, Enzo at Kamioka * Hirata-san at Mitaka * Tanioka-san at Mitaka? * -- * Clean parts (cable clamp bases, etc, etc). * Observe KAGRA Phase 1 operations, assist if problems arise. ==== Plan for week of 4/30 ==== * Golden Week! |
===== SR3 ===== * Unlock suspension. * Rearrange cables. * Test. ===== SR2 ===== * Finish PI prep. * Crane into AF, suspend. * Start cable routing. ===== SRM ===== * Prepare to assemble SRM metal mass (most parts due Wed 7/25). * Help Mirapro with AF move. * Start rebuild of top filter of PI #2. |
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| * [[KAGRA/Subgroups/VIS/TypeB/March2018]] * [[KAGRA/Subgroups/VIS/TypeB/April2018]] |
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| * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]] | * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779 Type B Schedule (SR)]] |
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| * Fabian vacation, 3/26-4/27 (then gone). | * Hirata-san at Mitaka 7/27. * Terrence: 8/24-26 f2f, then returns to Hong Kong. * Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 7/17
- We checked the polarity of the IP LVDTs and flipped coil connections to get the standard arrangement.
- We debugged an issue where one of the LVDT actuators had half the magnets in backwards resulting in no force.
- We calibrated all the PI LVDTs.
- We set the SF damper ring gap.
- We prepped the suspension for craning, moved it into the tank and hooked the LBB damper ring rods.
- Type A merged the SRM F0 with the correct IP, and we moved it out of the way (to the second floor behind the SRM tank).
- We installed more cable clamps on the SR2 PI.
Plan for week of 7/23
- Mark, Enzo, Fabian, Kozu-kun, Terrence, Panwei at Kamioka Mon-Fri.
- Hirata-san at Kamioka Mon-Thu.
- Mirapro moves assembly frame ≈7/25 (Wed).
SR3
- Unlock suspension.
- Rearrange cables.
- Test.
SR2
- Finish PI prep.
- Crane into AF, suspend.
- Start cable routing.
SRM
- Prepare to assemble SRM metal mass (most parts due Wed 7/25).
- Help Mirapro with AF move.
- Start rebuild of top filter of PI #2.
To-Do Lists, Schedule
Vacation Info
- Hirata-san at Mitaka 7/27.
- Terrence: 8/24-26 f2f, then returns to Hong Kong.
- Enzo: 9/14 JPS, 9/15 through 10/8 vacation in Chile.