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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 on finding connectors for vacuum-compatible geophone adapters.
  * 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]])
 * '''Discussions '''
  * Crane will not be available on 13-14 of June.
  * Review: '''fix the date (Mark) '''
  * Measurement of iKAGRA BS position will be done in the second week of June. Then it will be taken out of the chamber after that (Ohishi)
 * IM, RM, IRM, dummy BS assembly
  * Fabian assembled the dummy BS and started on the IM.
  * Still need to find SDC-treated hook for maraging wire in IM. Still not found. Spare hook is being SDC-treated. Can be added later.
  * Will start assembly 5/30
 * Wires
  * Fabian analysis RM wire thickness versus mode frequency: [[https://onedrive.live.com/redir?resid=1447B05D5B571A84!442&authkey=!AKrjBW2W8vMKyAY&ithint=file,pdf|link]], [[https://onedrive.live.com/redir?resid=1447B05D5B571A84!421&authkey=!ALZY-tFtMCYI9Pw&ithint=file,pdf|another link]],[[https://pfalig.bn1301.livefilestore.com/y3mT7oHnuBfD9_7Ata6H90opTVY5IIIm78MQ8Rl-lChfSUtGhGiEP-mlB1rQuzliimi-pmL1JfYTKCUY_Tgan0Bfa2jq5EeSXWiCracw_5ulsm2iuf6RHJcz0ot34DaeWqdUjFnU6fILnyau69WFkBmUcTwfGYBNwSrs27eyK-jc90/RM_wire.pdf?psid=1|yet another link]] (From last week: [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5106|T1605106]] /[[https://onedrive.live.com/view.aspx?resid=1447B05D5B571A84!354&ithint=file,docx&app=Word&authkey=!AO5CHNP3xlO5RjY|draft]])
 * Can we make SR wire breakers bigger?
  * Fukushima-san has not yet started the work. He will start soon (as of 5/27).
 * Flags, Metal Prisms, Sapphire prisms RECEIVED
 * Mirror box and Flag/Prism gluing
  * All parts in hand.
  * Magnet gluing and check of parts at Mitaka, Monday 6/6.
  * Gluing at Kashiwa, Wednesday 6/8.
  * Inspection of bonds and return to Mitaka, 6/13.
 * An extra structure attached to the EQ stop to prevent tipping over of the BS - no action since last week.
 * Not enough crane height problem (Hirata, Saito) - no action since last week
 * Ballast masses for payload
  * Initial batch received - ordered extra smaller ones to allow for adjustments.
 * Lower breadboard stuff
  * Assembly procedure
   * '''Need to be incorporated into the procedure document. Discuss with Takahashi (Mark)'''
  * Breadboard springs (in manufacture, expected end of July)
  * Nail-head parts: quote from Mirapro received, not urgent, will be combined with assembly frame order.
 * BS Assembly Frame Design (Mark, Hirata)
  * Hirata-san found issues with rail system part - organizing fix.
 * Clean bag
  * Ordered - expected 6/8.
 * 2D and 3D CAD
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5035|E1605035 VIS Document and Drawing Tree (BS)]]
 * Electronics
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3600|JGW-D1503600 - BS Suspension Cabling]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=5111|E1605111 BS Suspension Electronic Items List]]
  * [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3901|D1503901 In-Vacuum Cable Detail]]
  * Item list and timetable was given to Miyakawa-san - some corrections received and added to schematic but not yet posted.
  * Status on AEL boxes OK according to Miyakawa-san.
  * Signal generator and cable to be used for BS test. May order NIKHEF cards later if concern about AC-driven units in racks.
  * Need to get new longer versions of some previously ordered BF-PI and SF-PI cables (Takahashi).
  * Need to check previously ordered TM-BF and IM-BF OSEM cables have been flipped (Takahashi).
  * Decided to hand-make cables for geophones because previously ordered cables have no conductor on pin 5.
  * Stepper drive box (requested by Sekiguchi-san [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=3385|T1503385]]) is being designed, should be ready in time.
  * Mark looking for connectors for geophone adapters.
 * Procedure documents
  * Mark worked on BS Assembly Procedure [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]]		 === Type B (Mark) ===
==== Report for week of 3/19 ====
 * Fujii-kun successfully assembled and tested a geophone pod (klogs 4492, 4508).


==== Plan for week of 3/19 ====
 * Fujii-kun joins.
 * Mark at LVC meeting
 * Fujii-kun at Kamioka (including Wed 3/21)
 * Kozu-kun at Kamioka Mon-Tue.
 * All others at Mitaka
 * --
 * SR2 TFs and control loop development (Shoda-san and Enzo).
 * Assemble four geophone pods (Fujii-kun and Kozu-kun at Kamioka).
 * Make two sets of IM OSEMs (Shoda-san and Enzo)
 * Make last in-air pico adapter cable (Enzo).
 * Make three in-air stepper splitter cables for SR2, SR3 and SRM (Enzo).
 * Set up dummy BS prism removal (Hirata-san).

==== Plan for week of 3/26 ====
 * Tanioka-kun joins.
 * Mark vacation.
 * Shoda-san at Mitaka
 * Others at Kamioka
 * --
 * Lay SR3 in-air cabling (Enzo++).
 * Finish tuning of BFs (Hirata-san++).
 * SF check (Hirata-san++).
  * Check load capacity.
  * Check fit of caps.
  * Add cable clamps to bases.
  * Add cable clamps and Cu segments to caps (only if they fit well).
  * Cable LVDTs and steppers.

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
 * Fabian vacation, 3/26-4/27 (then gone).

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

Type B (Mark)

Report for week of 3/19

  • Fujii-kun successfully assembled and tested a geophone pod (klogs 4492, 4508).

Plan for week of 3/19

  • Fujii-kun joins.
  • Mark at LVC meeting
  • Fujii-kun at Kamioka (including Wed 3/21)
  • Kozu-kun at Kamioka Mon-Tue.
  • All others at Mitaka
  • --
  • SR2 TFs and control loop development (Shoda-san and Enzo).
  • Assemble four geophone pods (Fujii-kun and Kozu-kun at Kamioka).
  • Make two sets of IM OSEMs (Shoda-san and Enzo)
  • Make last in-air pico adapter cable (Enzo).
  • Make three in-air stepper splitter cables for SR2, SR3 and SRM (Enzo).
  • Set up dummy BS prism removal (Hirata-san).

Plan for week of 3/26

  • Tanioka-kun joins.
  • Mark vacation.
  • Shoda-san at Mitaka
  • Others at Kamioka
  • --
  • Lay SR3 in-air cabling (Enzo++).
  • Finish tuning of BFs (Hirata-san++).
  • SF check (Hirata-san++).
    • Check load capacity.
    • Check fit of caps.
    • Add cable clamps to bases.
    • Add cable clamps and Cu segments to caps (only if they fit well).
    • Cable LVDTs and steppers.

To-Do Lists, Schedule

Vacation Info

  • Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
  • Fabian vacation, 3/26-4/27 (then gone).

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