Differences between revisions 7 and 23 (spanning 16 versions)
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Editor: RyutaroTakahashi
Comment:
Deletions are marked like this. Additions are marked like this.
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Date : 13:30-14:15 Date : 13:30-14:30
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Participants : Takahashi, Aso, Ikeda, Tomaru, Ushiba, Sato, Miyo Participants : Takahashi, Hirata, Sato, Aso, Ushiba, Ikeda, Miyo, Akutsu, Kimura, Tomaru
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 * IX: Oplev will be finalized in April. ACC installation will be started in April.
 * IY:
 * EX: Oplev setting is on going. The payload has been released?
 * EY: Installation of the F1 stage was almost finished. Countermeasure for the contamination is scheduled on 4/5-6. Removing of the maraging rod is necessary.		  * IX: Oplev will be finalized in April. Height and alignment adjustments are planed on 4/7-8. ACC will be installed in April.
 * IY: Remedy of the pre-isolator is scheduled in April.
 * EX: Oplev setting is on going. Payload was released on 4/1. F0 was tuned.
 * EY: Installation of the tower will be restarted in May. Countermeasure for the contamination is scheduled on 4/5-6. Removing of the maraging rod is necessary.
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 * Acceptance check: Check items for in-air commissioning should be confirmed on the payload. Present status of EYV was shown.  * Acceptance check: Check items for in-air commissioning should be confirmed on the payload.
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 * Overall commissioning: Schedule meeting was held on 3/22.  * Overall commissioning:
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= VIS Meeting =
14:30-15:10
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= VIS Meeting =
14:15-15:00

Participants: Takahashi, Fabian, Aso, Hirata, Miyo, Ishizaki, Tanaka, Sato, Sugiyama		 Participants: Takahashi, Fabian, Tanaka, Sugiyama, Terrence,Aso, Hirata, Sato, Miyo
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 * Type-A team: MCo 4/6, IXV 4/7-8
 * Type-B team: PR3 4/5-9
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 * ''IMC suspensions are ready in air [40]'' will finish 2011/04/21.
 * ''PRs are ready in air [643]'' will finish 2011/07/09.
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 * ITMX is ready in air [657] will finish 2021/08/31.
 * ETMY is ready in air [658] will finish 2021/09/16.
 * ITMY is ready in air [659] will finish 2021/11/08.
 * PRs are ready in air [643] will finish 2011/07/09.
 * BS is ready in air [691] will finish 2011/11/24.
 * SRs are ready in air [663] will finish 2011/12/20.
 * IMC suspensions are ready in air [40] will finish 2011/04/21.
 * Output suspensions are ready in air [695] will finish 2011/12/21.
 * TMSY is ready in air [708] will finish 2011/??/??.
 * TMSX is ready in air [684] will finish 2011/??/??.		  * ''ITMX is ready in air [657]'' will finish 2021/08/31.
 * ''ETMY is ready in air [658]'' will finish 2021/09/16.
 * ''ITMY is ready in air [659]'' will finish 2021/11/08.
 * ''BS is ready in air [691]'' will finish 2011/11/24.
 * ''SRs are ready in air [663]'' will finish 2011/12/20.
 * ''Output suspensions are ready in air [695]'' will finish 2011/12/21.
 * ''TMSY is ready in air [708]'' will finish 2011/??/??.
 * ''TMSX is ready in air [684]'' will finish 2011/??/??.

2021/03/29
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'''EX'''

 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16378|16378]] F0 tuning , __ryutaro.takahashi__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16276|16276]] Setup of F1 , __ryutaro.takahashi__ 
* [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16276|16276]] Setup of F1 , __ryutaro.takahashi__
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  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16353|16353]] Comment , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16366|16366]] Comment , __ryutaro.takahashi__

'''General'''

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16349|16349]] Some of the EPICS channels have been changed to science frames , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16356|16356]] Added EPICS channel for , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16362|16362]] Update matrices for oplev segments , __kouseki.miyo__

'''IX'''

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16365|16365]] Wiring the release sensor (outside the vacuum chamber) , __naohisa.satou__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16310|16310]] Preparation for testing the procedure to glue the piano wire at the locating clamps in the IM. , __fabian.arellano__ 
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16348|16348]] Tightening the locating clamps for the piano wire. , __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16310|16310]] Preparation for testing the procedure to glue the piano wire at the locating clamps in the IM. , __fabian.arellano__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16348|16348]] Tightening the locating clamps for the piano wire. , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16355|16355]] Comment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16363|16363]] Comment , __fabian.arellano__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16370|16370]] Comment , __fabian.arellano__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16373|16373]] Comment , __fabian.arellano__
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EY cabling
 * According to the continuity check at F1, disconnection of the LVDT (actuator coil) of BF was found, but we have not been able to determine where the break occurred.
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=== TypeBp PR3 ===
This week we did two tasks, both related with PR3 clamps:

 * We measured the gaps in PR3 locating clamps for the 200 um piano wire and
 * We tested applying adhesive to the wires within the grooves in the locating clamps.
 * One magnet from the IM OSEM flags was chipped. We need to get another one. See [[https://photos.app.goo.gl/3cu5TECSb8hXkkW56|this picture]].

Size of gaps

 * We used thickness gauges.
 * We measured the gaps in different places to take into account that the gaps are not necessarily uniform.
 * The largest gap size was between 170 um and 180 um.
 * The lowest one was between 70 um and 80 um.
 * The tickness of the clamped wire is 200 um.

Gluing test.

 * Using a spare SR style clamp we tested the procedure. Let's see klog [[https://klog.icrr.u-tokyo.ac.jp//?r=16331|16331]] and [[https://klog.icrr.u-tokyo.ac.jp//?r=16338|16338]] for details.
 * The test was successful in the sense that the adhesive went into the gap and the grooves around the wires. However, I wonder if this tiny amount of glue would keep the wires in place.

Is there another option before deciding to hang the mirror again? Yes

 * During the gluing test we saw that the outer locating clamps was not badly scared, neither the tungsten wire. See pictures.
 * In order to access the screws of the inner locating clamps to tighten them we could do something like this:
  * Lock the payload, remove the IRM side panels (already done).
  * Remove the coils from the back ring of the RM in ordet to protect the magnet standoffs.
  * Release the mirror from the RM and withdraw the lower screws by more than a few milimeters.
  * Lift the RM by 3 mm using the screws from the security structure.
  * Loosen the outer locating clamps and move the wires out of the way just enough for the tool to reach the inner screw.
  * Tighten the inner screws with 2 Nm torque.
  * Put the tungsten wires back in the grooves and tighten the clamp again.
  * Lower the RM
  * Etc.
 * Washimi-san and I can do preparation on Monday and on Tuesday we can tighten the screws with Hirata-san.		 === TypeBp ===
I will explain using [[https://1drv.ms/b/s!AoQaV1tdsEcUgeNmg0hHZMMSejqOdA?e=AI19Xb|this short presentation]] about the adjustment of PR3 inner wire locating clamps.
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The week from 3/29

 * Takahashi: 3/29-4/2
 * Sato: 3/29-4/2
 * Hirata: 3/29-4/2
 * Yano: 3/29-31
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 * Takahashi: 4/5-9  * Takahashi: 4/5-8
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The week from 4/12

 * Takahashi: 4/12-16
 * Sato: 4/12-16
 * Hirata: 4/12-16
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 * 2021/4/2(FRI)  * 2021/4/9(FRI)

Contents

  1. Agenda/Minutes
  2. CRY+VIS Interface Meeting
    1. Schedule
    2. Status
    3. Discussion
  3. VIS Meeting
    1. Schedule
    2. Klog
    3. Summary Report
      1. TypeA
      2. TypeB
      3. TypeBp
      4. TypeC
      5. Electronics
      6. Control
    4. Safety
    5. Discussion
    6. Travel Plans
    7. Next meeting

Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date : 13:30-14:30

Participants : Takahashi, Hirata, Sato, Aso, Ushiba, Ikeda, Miyo, Akutsu, Kimura, Tomaru

Post O3 Upgrade portal

Schedule

  • IX: Oplev will be finalized in April. Height and alignment adjustments are planed on 4/7-8. ACC will be installed in April.
  • IY: Remedy of the pre-isolator is scheduled in April.
  • EX: Oplev setting is on going. Payload was released on 4/1. F0 was tuned.
  • EY: Installation of the tower will be restarted in May. Countermeasure for the contamination is scheduled on 4/5-6. Removing of the maraging rod is necessary.

Status

  • Corrugate tube fixing jig: They will be prepared by the end of May.
  • Commissioning in air: From mid. May for IX.
  • Commissioning in vacuum:
  • Acceptance check: Check items for in-air commissioning should be confirmed on the payload.
  • PF actuator: Not evaluated in IX, but after the commissioning for suspension.
  • Jig for FC painting:
  • Overall commissioning:
  • Procedure of TM height setting: More information on the range and limit is necessary to decide procedure. Prepare for the measurement in the first in-vacuum commissioning in IX.

Discussion

VIS Meeting

14:30-15:10

Participants: Takahashi, Fabian, Tanaka, Sugiyama, Terrence,Aso, Hirata, Sato, Miyo

Schedule

See Schedule

  • Type-A team: MCo 4/6, IXV 4/7-8
  • Type-B team: PR3 4/5-9

Milestone

  • IMC suspensions are ready in air [40] will finish 2011/04/21.

  • PRs are ready in air [643] will finish 2011/07/09.

  • ETMX is ready in air [656] will finish 2021/08/25.

  • ITMX is ready in air [657] will finish 2021/08/31.

  • ETMY is ready in air [658] will finish 2021/09/16.

  • ITMY is ready in air [659] will finish 2021/11/08.

  • BS is ready in air [691] will finish 2011/11/24.

  • SRs are ready in air [663] will finish 2011/12/20.

  • Output suspensions are ready in air [695] will finish 2011/12/21.

  • TMSY is ready in air [708] will finish 2011/??/??.

  • TMSX is ready in air [684] will finish 2011/??/??.

2021/03/29

Klog

EX

  • (!) 16378 F0 tuning , ryutaro.takahashi

EY

  • 16276 Setup of F1 , ryutaro.takahashi

    • 16336 Comment , naohisa.satou

    • 16353 Comment , ryutaro.takahashi

    • 16366 Comment , ryutaro.takahashi

General

  • 16349 Some of the EPICS channels have been changed to science frames , satoru.ikeda

  • 16356 Added EPICS channel for , satoru.ikeda

  • 16362 Update matrices for oplev segments , kouseki.miyo

IX

  • 16365 Wiring the release sensor (outside the vacuum chamber) , naohisa.satou

PR3

  • 16348 Tightening the locating clamps for the piano wire. , fabian.arellano

  • 16310 Preparation for testing the procedure to glue the piano wire at the locating clamps in the IM. , fabian.arellano

    • 16338 Comment , fabian.arellano

  • 16348 Tightening the locating clamps for the piano wire. , fabian.arellano

    • 16355 Comment , fabian.arellano

    • 16363 Comment , fabian.arellano

    • (!) 16370 Comment , fabian.arellano

    • (!) 16373 Comment , fabian.arellano

This is generated by python script in /users/Miyo/dropbox/Script/scrapping/main.py.

Summary Report

TypeA

TypeB

TypeBp

I will explain using this short presentation about the adjustment of PR3 inner wire locating clamps.

TypeC

Electronics

Control

Safety

Discussion

Travel Plans

The week from 4/5

  • Takahashi: 4/5-8
  • Sato: 4/5-9
  • Hirata: 4/5-9

The week from 4/12

  • Takahashi: 4/12-16
  • Sato: 4/12-16
  • Hirata: 4/12-16

Next meeting

  • 2021/4/9(FRI)

KAGRA/Subgroups/VIS/VISMinutes20210402 (last edited 2021-04-02 16:31:50 by RyutaroTakahashi)