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 * Type B Past Week Summary
  * Fabian, Mark, Yokogawa-kun and Kuwahara-kun did BS installation at Kamioka:
   * Calculated BS pitch correction ([[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5630|JGW-T1605630]])
   * Hung dummy optic and set pitch.
   * Prepared RM for hanging (adding OSEMs etc). One OSEM (#24) had wobbly leads and was brought back to Mitaka for rework.
   * Placed vacuum feedthroughs on assembly frame and cleaned initial batch (4) of D-Sub cables.
   * Decided position of BS rack with Miyakawa-san.
   * Measured various maraging rods and the rod holders on the SF.
   * Placed safety rails, rearranged floor panels, cleaned new floor panels, and otherwise improved safety.
  * Hirata-san:
   * Made new 3D models of the maraging rods for PRx and SRx
   * Made new collet design for PRx and SRx (3D and 2D).
   * Made new IM flag design for PRx and SRx (3D and 2D).
   * Washed lots of Type A BF parts and OSEM parts.
   * Cleaned the BS BF-IM maraging rod and organized the rest of the stock of rods.
   * Measured some BF part dimensions.
   * Pre-assembled parts for BFs.
 * Type B ongoing issues
 * Longer term to-do list
  * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - NEARLY DONE.
   * Part "disk security" top has to be modified - screw positions do not match.
  * Write more of payload assembly procedure (Fabian) - ONGOING
  * Write more of 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]] (Mark) - ONGOING
  * Lower breadboard installation to be incorporated into the procedure document.
  * Work on BS simulation (Fabian)
  * 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 3/25 ====
 * Mark and Fabian helped Fujii-kun with PR2. The problem turned out to be two broken flags. Hirata-san drew up a design for a jig to help reglue the flags in situ.
 * Fabian documented the height budget for the Type B suspension in the wiki ([[KAGRA/Subgroups/VIS/OpsManual/TypeB/SR3Data]] etc).
 * Terrence wrote up the final version of his OL diagonalization scheme.
 * Terrence worked on L2P decoupling for the TM.
 * Terrence and Mark edited the Type B Guardian to put turning on the payload damping later in the sequence, to help ensure that the OSEMs are not touching by the time they're needed (which can happen if the BF is buoyancy compensated for vacuum but the suspension is vented).
 * Mark started on a big tidy-up of the cleanbooth.
==== Plan for week of 3/25 ====
 * Mark, Fabian at Kamioka Mon-Fri.
 * Assist with PR2.
 * Work on Type B paper.
 * Tidy up.
  * Throw out foil and other garbage.
  * Gather and clean tools.
  * Gather and organize unused parts and fasteners.
  * Return all unused cables to tent.
  * Tidy up cables in rear of SR2 rack.
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  ==== Vacation/Travel Info ====
 * Enzo's last day 3/29.
 * Terrence's last day for now, 3/29.
 * Mark compensation day for 3/21: 3/29. (He is not really typing these minutes, and anyone who sounds like him in the meeting is an impostor!)
 * Type B going-away party for Terrence/Enzo, 3/29 in Tokyo.
 * 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 (TBD).
 * 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 3/25

  • Mark and Fabian helped Fujii-kun with PR2. The problem turned out to be two broken flags. Hirata-san drew up a design for a jig to help reglue the flags in situ.

  • Fabian documented the height budget for the Type B suspension in the wiki (KAGRA/Subgroups/VIS/OpsManual/TypeB/SR3Data etc).

  • Terrence wrote up the final version of his OL diagonalization scheme.
  • Terrence worked on L2P decoupling for the TM.
  • Terrence and Mark edited the Type B Guardian to put turning on the payload damping later in the sequence, to help ensure that the OSEMs are not touching by the time they're needed (which can happen if the BF is buoyancy compensated for vacuum but the suspension is vented).
  • Mark started on a big tidy-up of the cleanbooth.

Plan for week of 3/25

  • Mark, Fabian at Kamioka Mon-Fri.
  • Assist with PR2.
  • Work on Type B paper.
  • Tidy up.
    • Throw out foil and other garbage.
    • Gather and clean tools.
    • Gather and organize unused parts and fasteners.
    • Return all unused cables to tent.
    • Tidy up cables in rear of SR2 rack.

Vacation/Travel Info

  • Enzo's last day 3/29.
  • Terrence's last day for now, 3/29.
  • Mark compensation day for 3/21: 3/29. (He is not really typing these minutes, and anyone who sounds like him in the meeting is an impostor!)
  • Type B going-away party for Terrence/Enzo, 3/29 in Tokyo.
  • 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 (TBD).
  • Mark's final day 6/28.

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