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⇤ ← Revision 3 as of 2017-01-25 14:56:23 →
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Editor: YoichiAso
Comment:
← Revision 6 as of 2017-01-26 22:31:05 → ⇥
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Editor: RyutaroTakahashi
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.
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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:
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 * 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:
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  * 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)

  • Put a report here

IMMT (Ohishi)

  • Put a report here

Watchdog system (Tanaka)

  • Put a report here

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)