Differences between revisions 20 and 21
Revision 20 as of 2016-06-03 13:44:30
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Editor: MarkBarton
Comment:
Revision 21 as of 2016-06-03 14:29:12
Size: 5968
Editor: MarkBarton
Comment:
Deletions are marked like this. Additions are marked like this.
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  * Mark worked on finding connectors for vacuum-compatible geophone adapters.
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 * '''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]]

Scraps of text for incorporation in the VIS Meeting Minutes

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Type B Past Week Summary
    • Fabian worked on IM and dummy BS assembly: photos1, 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 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 E1504235 BS Assembly Procedure (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
  • 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
  • Electronics
    • JGW-D1503600 - BS Suspension Cabling

    • E1605111 BS Suspension Electronic Items List

    • 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 T1503385) is being designed, should be ready in time.

    • Mark looking for connectors for geophone adapters.
  • Procedure documents

KAGRA/Subgroups/VIS/TypeB/Minutes (last edited 2022-07-01 13:49:37 by fabian.arellano)