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 * Type B Past Week Summary
  * Fabian worked on IM and dummy BS assembly: [[https://photos.google.com/share/AF1QipMNVSExyP3TuyhK4s_VD-ARDlNoCPCf13ZDbHUlwOw14AKgj4XUe0vYg27dQ12icQ?key=SjJ0dXJ1bjN2OGVCN3d6RnoySEtFSjVJUmVwSlZR|photos1]], [[https://photos.google.com/share/AF1QipPQdoB5vYN1VcD32TkA4QSGldODvKRwiT5h-m122ahSpWmFyyrO5MX-9ajL1LeRIg?key=VFFuUVktcEtlMURQUldhZUlRcGFhbzNDeU5IN3NB|photos2]]
   * A hole in a picomotor holder was too small. ATC staff solved this isue quickly and Hirata-san cleaned the piece.
   * Some ballast discs for the dummy optic were dirty (seen by visual inspection). Hirata-san cleaned them.
   * Some arrows were cleaned from the mirrors for the dummy optic.
  * Hirata-san worked on checking Mirapro's assembly frame design - some minor issues with rail system found.
  * Hirata-san measured another filter.
  * Hirata-san washed a large batch of parts.
  * All parts for gluing of dummy BS are in hand. We arranged with Tatsumi-san to glue magnets at Mitaka on 6/6, glue flags at Kashiwa on 6/8, and inspect bonds and bring dummy BS back to Mitaka 6/13.
  * Mark worked on solutions to allow a [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeB/dummyBS|larger mirror on dummy BS]]. After discussions with Simon and Akutsu-san we decided to go with a stainless steel plate solution. The gluing can go ahead and we can attach the plates later.
  * Mark worked on list of items for purchase in FY2016.
  * Mark worked more on [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235|E1504235 BS Assembly Procedure]] ([[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|Draft on OneDrive]])		 === Type B (Mark) ===
==== Report for the week of 4/8 ====
 * Support of Type Bp
  * Mark made lots of Guardian improvements:
   * Used Guardian's timer functionality to drastically reduce the number of notifications during ramping.
   * Added new requestable states DCCTRL_ONLY and NEUTRAL (and associated transitional states) to facilitate testing.
   * Tidied up the code to use tabs consistently throughout for indentation.
   * Disabled the test for the IM-H coil driver WD (to work around the fact that only the relay in the chassis has been disabled, not the WD signals going to the BIO).
 * We opened the BS tank lid and offloaded a large IM-Y offset to F0-Y with manual adjustment of the broken yaw mechanism).
 * We opened the SR2 side doors and adjusted the V1 OSEM to mid-range.
 * Mark offloaded a large SR2 IM-Y offset to F0-Y.
 * Mark did health checks for BS, SR2 and SR3.
 * Fabian offloaded yaw from SRM and did the SRM health check.
 * Fabian updated the Python code for the stepper driver MEDM screen to reflect that two stepper drivers have different mappings to work around dead channels.
 * Fabian monitored pumpdown on Friday afternoon and will continue on Saturday.

==== Plan for week of 4/15 ====
 * Mark, Hirata-san at Kamioka Tue-Thu.
 * Fabian at Kamioka Mon-Wed.
 * All at f2f Meeting 4/19-21.
 * Post-pumpdown health checks.
 * Teach Hirata-san about the computer systems and control theory.
 * Work with Lucia to do blending of the IP LVDTs and geophones.
 * More Guardian improvements.
  * Update vistools.py (formerly LIGO sustools.py) for Type B and KAGRA, and have the TYPEB.py Guardian use it where appropriate.
  * 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).
 * Work on Type B paper.
 * Tidy up.
  * Gather and clean tools.
  * Gather and organize unused parts and fasteners.

==== 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 US vacation from 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 4/8

  • Support of Type Bp
    • Mark made lots of Guardian improvements:
      • Used Guardian's timer functionality to drastically reduce the number of notifications during ramping.
      • Added new requestable states DCCTRL_ONLY and NEUTRAL (and associated transitional states) to facilitate testing.
      • Tidied up the code to use tabs consistently throughout for indentation.
      • Disabled the test for the IM-H coil driver WD (to work around the fact that only the relay in the chassis has been disabled, not the WD signals going to the BIO).
  • We opened the BS tank lid and offloaded a large IM-Y offset to F0-Y with manual adjustment of the broken yaw mechanism).
  • We opened the SR2 side doors and adjusted the V1 OSEM to mid-range.
  • Mark offloaded a large SR2 IM-Y offset to F0-Y.
  • Mark did health checks for BS, SR2 and SR3.
  • Fabian offloaded yaw from SRM and did the SRM health check.
  • Fabian updated the Python code for the stepper driver MEDM screen to reflect that two stepper drivers have different mappings to work around dead channels.
  • Fabian monitored pumpdown on Friday afternoon and will continue on Saturday.

Plan for week of 4/15

  • Mark, Hirata-san at Kamioka Tue-Thu.
  • Fabian at Kamioka Mon-Wed.
  • All at f2f Meeting 4/19-21.
  • Post-pumpdown health checks.
  • Teach Hirata-san about the computer systems and control theory.
  • Work with Lucia to do blending of the IP LVDTs and geophones.
  • More Guardian improvements.
    • Update vistools.py (formerly LIGO sustools.py) for Type B and KAGRA, and have the TYPEB.py Guardian use it where appropriate.
    • 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).
  • Work on Type B paper.
  • Tidy up.
    • Gather and clean tools.
    • Gather and organize unused parts and fasteners.

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 US vacation from 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)