Differences between revisions 1 and 14 (spanning 13 versions)
⇤ ← Revision 1 as of 2021-03-16 08:46:37 →
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Editor: KousekiMiyo
Comment:
← Revision 14 as of 2021-03-19 13:02:22 → ⇥
Size: 5934
Editor: fabian.arellano
Comment:
Deletions are marked like this. Additions are marked like this.
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Participants : Takahashi, Ikeda, Ohashi, Kimura, Aso, Hirata, Sato, Ushiba, Tomaru, Akutsu, Miyo

[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]]		 Participants : [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Upgrades/PostO3Upgrades|Post O3 Upgrade portal]]
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 * IX: Oplev setting will be carried out after the next week. F0 and IP were tuned. Yaw will be adjusted after rough alignment.
 * IY: Cryo-payload was removed on 3/11.
 * EX: Connection is scheduled in the next week.
 * EY: Cryo-payload was removed on 3/12. Cable treatment is necessary.		  * IX: Oplev setting will be carried out in the next week. Yaw will be adjusted after rough alignment.
 * IY:
 * EX: Cryo-payload was installed. Release is scheduled on 3/22.
 * EY: Installation of the F1 stage was started.
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 * Corrugate tube fixing jig: The spacer is modified. They should be prepared by mid. May.  * Corrugate tube fixing jig: They will be prepared by the end of May.
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Participants: Takahashi, Fabian, Hirata, Miyo, Tanaka, Sato, Washimi, Terrence, Aso Participants:
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 * Type-A team: 3/15-16 connection of cryo-payload in EX. 3/17- go back to EY
 * Type-B team: 3/15-19 PR3 setting. Remedy work of IY will be postponed.		  * Type-A team: 3/22-26 installation in EY. 3/23 F0 tuning in EX.
 * Type-B team: 3/22-26 Remedy in PR3.
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 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16260|16260]] Connection of cryo-payload , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16260|16260]] Connection of cryo-payload , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16271|16271]] Comment , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16275|16275]] Comment , __ryutaro.takahashi__

'''EY'''

 * [[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=16288|16288]] Comment , __ryutaro.takahashi__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16234|16234]] Common Type-C(MCI,MCE,MCO,IMMT1,IMMT2) model. , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16261|16261]] Comment , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16269|16269]] Comment , __satoru.ikeda__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16234|16234]] Common Type-C(MCI,MCE,MCO,IMMT1,IMMT2) model. , __satoru.ikeda__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16261|16261]] Comment , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16252|16252]] Common Type-C(OMMT1,OMMT2,OSTM) model. , __satoru.ikeda__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16262|16262]] Comment , __satoru.ikeda__		   * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16262|16262]] Comment , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16268|16268]] Comment , __satoru.ikeda__

'''IX'''

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16185|16185]] Added MN/PF OpLev to k1visitmxp's Model file. , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16278|16278]] Comment , __satoru.ikeda__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting , __satoru.ikeda__   * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting , __satoru.ikeda__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16249|16249]] Connection of release sensors to DGS , __ryutaro.takahashi__ 
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16251|16251]] Comment , __naohisa.satou__ 		  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16249|16249]] Connection of release sensors to DGS , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16251|16251]] Comment , __naohisa.satou__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16279|16279]] IMC oplev characterization and MCe oplev TX replacing , __tomotada.akutsu__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16157|16157]] Investigation of IMC suspensions , __ryutaro.takahashi__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16286|16286]] Comment , __kouseki.miyo__
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 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16258|16258]] Setting the alignment of PR3. , __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16239|16239]] Test of PR3 mirror pitch stability using the Donald Trump method. , __fabian.arellano__ 
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16258|16258]] Setting the alignment of PR3. , __fabian.arellano__
 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16287|16287]] Comparison of PR3 and SR3 wire clamps. , __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16239|16239]] Test of PR3 mirror pitch stability using the Donald Trump method. , __fabian.arellano__
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 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16272|16272]] Tightening of the wire clamp screws. , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16277|16277]] Comment , __fabian.arellano__
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 * Disconnected the cryo-payload in IY.
 * Setup the F0 and tuned the IP in IX.		  * Connected the cryo-payload to the BF in EX. The load for BF was roughly adjusted. The F1, F3, BF are working. The F0 overloads by 13kg.
 * Started the setup of F1 in EY.
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PR3 ==== PR3 ====
Given the fact that the gluing of the wire underneath the mirror didn't fix the problem of the stability of the mirror, we decided to tighten the wire clamps.
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 * At the begining of the week the IM was still touching the IRM.
 * First we did a health check of the IM-Y picomotor because I had the impression it had reached a limit.
  * We locked the BF and pushed the IRM in yaw such that the IM was hanging free.
  * We actuated in yaw using the picomotor and it moved freely suggesting it had not reached its limit.
 * With confidence in the picomotor condition we proceeded to adjust yaw and pitch until the IM became free although the OSEM flags were not at the centres of their cavities.
 * Measurements of IM TFs revealed the system was healthy. (IM-V TF was not measured because the SF is locked due to the plastic cover.)
 * '''Happily, we can consider the system to be recovered from the jammed-BF-picomotor-earthqueake event.'''
 * Later we moved the IM picomotors in order to move the OSEM flags closer to centers of their cavities.However, this rendered H3 out of range.
 * The locked theIRM and the IM and moved H3 into range, but when we released the system we realized V1 had become out of range due to a change in pitch.
 * We measured transfer functions with the horizontal OSEMs and they were all good.
 * We proceeded with the Trump method to test the pitch stability:
  * We carried out the procedure from the control room and used the readout from V2 and V3 (V1 out of range) and the 3D-CAD to calculate the change in pitch: '''-3.9 mrad''' ('''consistent with what was measured with an oplev when we disturbed the suspension when we glued the wire''').
  * In the tunnel we carried out the procedure again and used an oplev to measure a change of '''33.4 mrad'''. '''See the videos'''.
  * For the same event we used the V2 and V3 OSEMs to estimate the change in pitch of the IM: '''4.1 mrad''' '''(consistent with previous measurements).'''
 * Today we inspected the payload visually.
  * We didn't find anything wrong.
  * Only H2 flag rotated during the Trump procedure. See pictures.		  * We locked the payload.
 * Removed H1 and H2 OSEM flsags with long and narrow pliers.
 * Removed the side panels.
 * Tighetened the screws of the weight-holding wires to 10 Nm
 * Tighetened the screws of the RM locating wire screws to 2 Nm. They rotated beytween 45 degrees and 95 degrees. (The screw heads for the mirror wires are not accesible).
 * After reassembly we tested pitch stabiliry with the Trupm procedure.
  * The mirror pitch changed by -5.8 mrad (oplev).
  * The IM pitch changed by 1. 04 mrad (V2 and V3 OSEMs).
 * Given this result we want to apply adhesive to the wires at the bottom of the clamps: see slides.
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 * [Miyo] We have to resolve the picomotor range probblem before closing MCE and MCF chambers.
 * [Miyo] We will start the suspension commissioning work including the oplev calibration in next week.
 * [Takahashi] The pushing point for yaw picomotor will be extended with spacer in MCo.
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 * [Takahashi] Connected the release sensors to the DGS using the exchange cables in IY.
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 * [Ikeda] Add new RTM block of additional MN and PF OpLevs of Cryo-payload in the current RTM.
 * [Ikeda] ITMY is updated with new RTM.
 * [Ikeda] Now, the old RTM used in O3 is only installed on BS and PR3. Please see [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/RealTimeModel#RTM_Status|Wiki]]
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The week from 3/15

 * Takahashi: 3/15-18
 * Sato: 3/15-19
 * Hirata: 3/15-19
 * Yano: 3/15-19
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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: 3/29-4/2
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 * 2021/3/19(FRI)  * 2021/3/26(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-

Participants : Post O3 Upgrade portal

Schedule

  • IX: Oplev setting will be carried out in the next week. Yaw will be adjusted after rough alignment.
  • IY:
  • EX: Cryo-payload was installed. Release is scheduled on 3/22.
  • EY: Installation of the F1 stage was started.

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: Cryo-payload in IX/EX and Type-A tower in EY/IX are on going.
  • PF actuator: Not evaluated in IX, but after the commissioning for suspension.
  • Jig for FC painting:
  • Overall commissioning: Schedule meeting on 3/22.
  • Procedure of TM height setting:

Discussion

VIS Meeting

14:00-

Participants:

Schedule

Schedule

* The next week

  • Type-A team: 3/22-26 installation in EY. 3/23 F0 tuning in EX.
  • Type-B team: 3/22-26 Remedy in PR3.

Klog

EX

  • 16260 Connection of cryo-payload , ryutaro.takahashi

    • 16271 Comment , ryutaro.takahashi

    • 16275 Comment , ryutaro.takahashi

EY

  • 16276 Setup of F1 , ryutaro.takahashi

    • (!) 16288 Comment , ryutaro.takahashi

General

  • 16234 Common Type-C(MCI,MCE,MCO,IMMT1,IMMT2) model. , satoru.ikeda

    • 16261 Comment , satoru.ikeda

    • 16269 Comment , satoru.ikeda

  • 16252 Common Type-C(OMMT1,OMMT2,OSTM) model. , satoru.ikeda

    • 16262 Comment , satoru.ikeda

    • 16268 Comment , satoru.ikeda

IX

  • 16185 Added MN/PF OpLev to k1visitmxp's Model file. , satoru.ikeda

    • 16278 Comment , satoru.ikeda

IY

  • 16249 Connection of release sensors to DGS , ryutaro.takahashi

  • 16091 Monitoring of IP by ITMY venting , satoru.ikeda

    • 16248 Comment , satoru.ikeda

  • 16249 Connection of release sensors to DGS , ryutaro.takahashi

    • 16251 Comment , naohisa.satou

MCF

  • 16242 MCi and MCo oplev TX replacing , tomotada.akutsu

  • 16279 IMC oplev characterization and MCe oplev TX replacing , tomotada.akutsu

  • 16157 Investigation of IMC suspensions , ryutaro.takahashi

    • (!) 16286 Comment , kouseki.miyo

PR3

  • 16258 Setting the alignment of PR3. , fabian.arellano

  • (!) 16287 Comparison of PR3 and SR3 wire clamps. , fabian.arellano

  • 16239 Test of PR3 mirror pitch stability using the Donald Trump method. , fabian.arellano

    • 16247 Comment , fabian.arellano

    • 16246 Comment , fabian.arellano

  • 16272 Tightening of the wire clamp screws. , fabian.arellano

    • 16277 Comment , fabian.arellano

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

Summary Report

TypeA

  • Connected the cryo-payload to the BF in EX. The load for BF was roughly adjusted. The F1, F3, BF are working. The F0 overloads by 13kg.
  • Started the setup of F1 in EY.

TypeB

TypeBp

PR3

Given the fact that the gluing of the wire underneath the mirror didn't fix the problem of the stability of the mirror, we decided to tighten the wire clamps.

  • We locked the payload.
  • Removed H1 and H2 OSEM flsags with long and narrow pliers.
  • Removed the side panels.
  • Tighetened the screws of the weight-holding wires to 10 Nm
  • Tighetened the screws of the RM locating wire screws to 2 Nm. They rotated beytween 45 degrees and 95 degrees. (The screw heads for the mirror wires are not accesible).
  • After reassembly we tested pitch stabiliry with the Trupm procedure.
    • The mirror pitch changed by -5.8 mrad (oplev).
    • The IM pitch changed by 1. 04 mrad (V2 and V3 OSEMs).
  • Given this result we want to apply adhesive to the wires at the bottom of the clamps: see slides.

TypeC

Electronics

Control

Safety

Discussion

Travel Plans

The week from 3/22

  • Takahashi: 3/22-3/26
  • Sato: 3/22-3/26
  • Hirata: 3/22-3/26
  • Yano: 3/22-3/26

The week from 3/29

  • Takahashi: 3/29-4/2
  • Sato: 3/29-4/2
  • Hirata: 3/29-4/2
  • Yano: 3/29-4/2

Next meeting

  • 2021/3/26(FRI)

KAGRA/Subgroups/VIS/VISMinutes20210319 (last edited 2021-03-19 15:50:29 by RyutaroTakahashi)