Differences between revisions 3 and 8 (spanning 5 versions)
⇤ ← Revision 3 as of 2017-01-25 14:56:23 →
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Editor: YoichiAso
Comment:
← Revision 8 as of 2017-01-27 13:28:29 → ⇥
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Editor: AyakaShoda
Comment:
Deletions are marked like this. Additions are marked like this.
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 * Put a report here
  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA/Meeting|Minutes of Type-A Meeting]]
 * EYV chamber: Top chamber was connected again.
 * Pre-isolator: The pre-isolators for SR were packed and moved out of the large clean room on 23rd.
 * BF damper: Checked delivered parts on 24th.
 * Maraging wire: The wires are delivered on 31st. They are sent to the thermal proccess on 1st February.
  The 3.3m wire can be treated at Himeji facility of Kinzoku-giken.
 * Preparation of installation: The floor of clean booth was covered by stainless steel sheet. The foot holds were assembled.
  Other large tools (rack, wagon, desk, so on) also were installed into the clean booth.
Line 18: Line 24:
 * Put a report here  * '''Hanging Report''': TF measured, BF has been set.
  * EQ stop parts below the BF were assembled.
  * We measured TFs of RM using PSs. (Their alignment was not so easy.)
  * BF was placed on the EQ stop. (Traverser was moved out of the clean room for accesibility.)
  * BF and IM was connected. Not hanged yet.
  * BFRM parts were delivered.
Line 20: Line 31:
 * '''Next week task''': Hang IRM
  * Hang IM and adjust the weight.
  * Hang IRM and balance IM.
  * IRM and set OSEMs.

 * A mirror box was sent to a company for modification
 * Flag bases were sent to a company for modification
 * Winch were sent to Mitaka for inspection

 * '''To do'''
  * Establish disassemble procedure
  * Buy the new tools
Line 24: Line 47:
 * Put a report here  * WDS PCB Design Document.Main rack( Main board + peripheral board )design.
   *Correction of PCB design and correction by DRC(by manufacturer).[[http://gwdoc.icrr.u-tokyo.ac.jp/DocDB/0061/E1706101/001/Project%20WDS%20PCB%20Design%20Ver1%28Detail%29170127.pdf|PDF(JGW-E1706101)]]
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 * Travel plan for the rest of the FY (Aso)
  * Please check and update (if necessary) the following travel sheet.
  * [[https://1drv.ms/x/s!Ajrs5Q_CgYCOhCYAoyZZGXoejFRq|Travel Plan Sheet]]
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  * Two possible designs for the magnet base
   * LIGO style one: [[https://www.dropbox.com/s/h47gump6ygi16gg/Small-Magnet-Assy-LIGO-Style.png?dl=0|image]]
    * A dumbbell shaped aluminum stand-off
    * Smaller footprint -> smaller thermal noise
    * Relatively soft (14kHz internal resonance)
    * Easy to be bent
   * VIRGO style one: [[https://www.dropbox.com/s/imzpz3pwt0dlg5s/Small-Magnet-Assy-VIRGO-Style.png?dl=0|image]]
    * Embedding a magnet in a aluminum cylinder
    * Has a larger footprint -> larger thermal noise.
    * Rigid structure. Internal mode frequency is about 94kHz.
  * After some discussion, we will employ the VIRGO like design.
   * We probably do not need a chamfer.
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 * Mon: BF Adjustment (Type-B)/Measure TF (Type-Bp)
 * Tue: Preparation (Type-A)/BF Adjustment (Type-B)/EQ stop assembly, BF setting (Type-Bp)
 * Wed: Preparation (Type-A)/BF Adjustment (Type-B)/IM haning (Type-Bp)
 * Thu: Preparation (Type-A)/TF measurement (Type-B)/IM haning (Type-Bp)
 * Fri: Preparation (Type-A)/TF measurement (Type-B)/IM haning (Type-Bp)		  * Mon:
 * Tue:
 * Wed:
 * Thu:
 * Fri:
Line 65: Line 70:

 * Travel (Week of 1/23):
  * Takahashi: 23-27
  * Shoda: 23-27
  * Mark: 23-27
  * Fabian:
  * Okutomi: 23-27
  * Fujii:
  * Ishizaki:
  * Hirata:
  * Sato: 23-27
  * Enzo: 23-27
  * Hashimoto (Hosei Univ.): 25-27
  * Someya (Hosei Univ.): 23-27
  * Ohishi:
Line 92: Line 82:
  * Hashimoto (Hosei Univ.):
  * Someya (Hosei Univ.):
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 * Travel (Week of 2/6):
  * Takahashi:
  * Shoda:
  * Mark:
  * Fabian:
  * Okutomi:
  * Fujii:
  * Ishizaki:
  * Hirata:
  * Sato:
  * Enzo:
  * Hashimoto (Hosei Univ.):
  * Someya (Hosei Univ.):
  * Ohishi:
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On 2017/1/27(Fri) On 2017/2/3(Fri)

Agenda/Minutes of the VIS Meeting on 2017/1/27

2017/1/27 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

Type-A (Takahashi)

  • Minutes of Type-A Meeting

  • EYV chamber: Top chamber was connected again.
  • Pre-isolator: The pre-isolators for SR were packed and moved out of the large clean room on 23rd.
  • BF damper: Checked delivered parts on 24th.
  • Maraging wire: The wires are delivered on 31st. They are sent to the thermal proccess on 1st February.
    • The 3.3m wire can be treated at Himeji facility of Kinzoku-giken.
  • Preparation of installation: The floor of clean booth was covered by stainless steel sheet. The foot holds were assembled.
    • Other large tools (rack, wagon, desk, so on) also were installed into the clean booth.

Type B (Mark)

  • Put a report here

Type-Bp (Shoda)

  • Hanging Report: TF measured, BF has been set.

    • EQ stop parts below the BF were assembled.
    • We measured TFs of RM using PSs. (Their alignment was not so easy.)
    • BF was placed on the EQ stop. (Traverser was moved out of the clean room for accesibility.)
    • BF and IM was connected. Not hanged yet.
    • BFRM parts were delivered.

  • Next week task: Hang IRM

    • Hang IM and adjust the weight.
    • Hang IRM and balance IM.
    • IRM and set OSEMs.
  • A mirror box was sent to a company for modification
  • Flag bases were sent to a company for modification
  • Winch were sent to Mitaka for inspection

  • To do

    • Establish disassemble procedure
    • Buy the new tools

IMMT (Ohishi)

  • Put a report here

Watchdog system (Tanaka)

  • WDS PCB Design Document.Main rack( Main board + peripheral board )design.

Safety

  • Incidents:
  • Foreseen risks
    • Type-A:
    • Type-B:
    • Type-Bp:

Discussion

  • Smaller coil design status update (Aso)

Site work plan for the next week

  • Mon:
  • Tue:
  • Wed:
  • Thu:
  • Fri:

Travel Plans

  • Travel (Week of 1/30):
    • Takahashi: 30-2/3
    • Shoda: 31-2/3
    • Mark: 30-2/3
    • Fabian:
    • Okutomi: 30-2/3
    • Fujii:
    • Ishizaki: 30-2/3
    • Hirata:
    • Sato: 30-2/3
    • Enzo: 30-2/3
    • Hashimoto (Hosei Univ.):
    • Someya (Hosei Univ.):
    • Ohishi:
  • Travel (Week of 2/6):
    • Takahashi:
    • Shoda:
    • Mark:
    • Fabian:
    • Okutomi:
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Enzo:
    • Hashimoto (Hosei Univ.):
    • Someya (Hosei Univ.):
    • Ohishi:

Next meeting

On 2017/2/3(Fri) VIS F2F: Feb. 17th

KAGRA/Subgroups/VIS/VISMinutes20170127 (last edited 2017-01-27 20:06:09 by NaokoOhishi)