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 * Type B Past Week Summary
  * Mark, Fabian and Hirata-san cleaned glue off the dummy BS, attached Akutsu-san's new SS mirror plates, reglued the flags and prisms, and removed the gluing hardware, so the dummy BS is ready for shipping. Tatsumi-san's refinements to the tooling (especially the new flag holders) worked very smoothly. We were more generous with the glue and much more careful with the alignment of the prisms to the barrel, both during rehearsal and the final gluing.
  * Mark wrote up the gluing procedure as a new document [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5505| E1605505]]. (The original plan was to do an addendum to Tatsumi-san's PR gluing procedure JGW-E1504248, but there was too much material.)
  * Hirata-san organized with Takahashi-san to get the BS payload masses shipped to Kamioka. They will go in an air-ride truck on Wed 8/17 together with a load of Type A stuff, and will arrive early on Thu 8/17.
  * Hirata-san shipped the collection of Type B fasteners to Kamioka, to arrive Mon 8/15.
  * Hirata-san measured another standard filter and cleaned various parts for people.
  * Hirata-san worked on the SR2 Inventor assembly. He spotted a problem with the orientation: given the position of the pistons in the SR2 tank (according to the assembly from Mirapro), mating the standard Type B SR chain and the chamber in the natural way puts the optic at 90° to what it needs to be. A similar problem was found in the Type B Test at Mitaka, and it was eventually worked around, but with some difficulty. Hirata-san will investigate the best way of making a correction.
  * Komori-kun, Kuwahara-kun and Akutsu-san calibrated an initial batch of 7 wide-mouthed OSEMs. They will be shipped to Kamioka on Friday.
  * Fabian worked on the payload assembly procedure.
 
 * Type B ongoing issues
  * OSEMs
   * First batch of 7 ready for shipping.
  * Longer cables for BF->PI and SF->PI still not received, Takahashi-san to check status.
  * Lower breadboard stuff
   * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss.
  * Documents
   * BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]
 * To-do list during Mark's vacation
  * Weigh IM/RM/IRM (Fabian, Hirata) - DONE
   * New trim mass - ORDERED.
  * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian) - READY TO SHIP.
  * Analyze geophone data (Fabian/Shoda) - DONE.
  * Remove glue from dummy BS face (Fabian) - DONE.
  * Reglue flags and prisms (Tatsumi, Fabian) - DONE.
  * Clean wire for BS and RM (Hirata) - DONE
  * Get new winch parts for new wire diameters - ORDERED, expected 8/5.
  * Do fit/function test of winches (Fabian/Hirata) - fit test DONE, function test from 8/8
  * Ship winches to Kamioka (Hirata/Fabian)
  * Work on BS simulation (Fabian)
  * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - ONGOING.
  * Write more of payload assembly procedure (Fabian) - ONGOING
  * Write more of main assembly procedure (Mark) - ONGOING
 * Longer term to-do list
  * Do BS Simulink model (Mark, Kokeyama)
  * Do 2D drawings of SR2 parts (Hirata)
  * Redesign SRx IM wire clamps for larger prisms, remachined RMs
  * Order SRM/PRM parts (Hirata/Shoda)
  * Order SRx fasteners (Hirata)		 === Type B (Mark) ===
==== Report for the week of 4/1 ====
 * Support of Type Bp
  * Hirata-san procured the jigs for PRs and Takahashi-san tested one at TAMA.
  * Hirata-san cleaned up the flags for PR2 and Mark did the one for PRM.
  * Fabian helped Fujii-kun and Takashashi-san to reglue the flags.
 * Mark did a lot of maintenance on the MEDM screens:
  * Made the name of the suspension more obvious (no yellow text!).
  * Added rack temperature indicators.
  * Fixed the labels in the ADC screen (to reflect the LEN OL moving from ADC#0 to #1).
  * Fixed broken links.
  * Committed files to the SVN.
 * Mark did maintenance on the Guardian to make it give more helpful messages in the TRIGGER state. Formerly it only checked the user model watchdog and the coil driver watchdog, not the DACKILL, and gave the same generic notification for both. Now it checks all three and tells the user which need attention.
 * Mark tidied up the cables in the SR2 rack and returned a large pile of no-longer-used cables to the tent.
 * Mark started a !HealthCheck page on the Operation Manual wiki.
Fabian and Mark
==== Plan for week of 4/8 ====
 * Mark, Fabian at Kamioka Mon-Fri.
 * Help with Type Bp.
 * Health checks on Type B.
 * Monitor pumpdown.
 * Work on Type B paper.
 * Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output).
 * Tidy up.
  * Gather and clean tools.
  * Gather and organize unused parts and fasteners.

==== Plan for week of 4/15 ====
 * Mark at Mitaka 4/15, Kamioka 4/16-18, f2f 4/19.
 * Fabian at Kamioka 4/15-18, f2f 4/19.

==== Vacation/Travel Info ====
 * Mark at Mitaka 4/15.
 * f2f 4/19 (Friday), 4/20, 4/21.
 * Terrence's next visit from 4/18.
 * Fabian's vacation 4/26 to 5/10.
 * Mark's vacation from about 5/22 to 6/11.
 * Mark's final day 6/28.

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for the week of 4/1

  • Support of Type Bp
    • Hirata-san procured the jigs for PRs and Takahashi-san tested one at TAMA.
    • Hirata-san cleaned up the flags for PR2 and Mark did the one for PRM.
    • Fabian helped Fujii-kun and Takashashi-san to reglue the flags.
  • Mark did a lot of maintenance on the MEDM screens:
    • Made the name of the suspension more obvious (no yellow text!).
    • Added rack temperature indicators.
    • Fixed the labels in the ADC screen (to reflect the LEN OL moving from ADC#0 to #1).
    • Fixed broken links.
    • Committed files to the SVN.
  • Mark did maintenance on the Guardian to make it give more helpful messages in the TRIGGER state. Formerly it only checked the user model watchdog and the coil driver watchdog, not the DACKILL, and gave the same generic notification for both. Now it checks all three and tells the user which need attention.
  • Mark tidied up the cables in the SR2 rack and returned a large pile of no-longer-used cables to the tent.

  • Mark started a HealthCheck page on the Operation Manual wiki.

Fabian and Mark

Plan for week of 4/8

  • Mark, Fabian at Kamioka Mon-Fri.
  • Help with Type Bp.
  • Health checks on Type B.
  • Monitor pumpdown.
  • Work on Type B paper.
  • Modify RT models and/or Guardian to revert to the SAFE state under control in all but the most extreme emergency situations (rather than suddenly shutting off all output).
  • Tidy up.
    • Gather and clean tools.
    • Gather and organize unused parts and fasteners.

Plan for week of 4/15

  • Mark at Mitaka 4/15, Kamioka 4/16-18, f2f 4/19.
  • Fabian at Kamioka 4/15-18, f2f 4/19.

Vacation/Travel Info

  • Mark at Mitaka 4/15.
  • f2f 4/19 (Friday), 4/20, 4/21.
  • Terrence's next visit from 4/18.
  • Fabian's vacation 4/26 to 5/10.
  • Mark's vacation from about 5/22 to 6/11.
  • Mark's final day 6/28.

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-10-28 10:02:46 by fabian.arellano)