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= Agenda/Minutes on 2021/2/12 = = Agenda/Minutes on 2021/2/19 =
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13:30-13:55 13:30-14:10
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Participants: Participants: Takahashi, Miyo, Aso, Sato, Hirata, Ikeda, Ushiba, Tomaru
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 * Schedule for IX: Release is scheduled on 2/18.  * Schedule for IX: Released on 2/18. BF was overload.
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 * Commissioning in vacuum: Closing of DN800 flange is available within a half of day.
 * Acceptance check: Cryo-payload in IX and Type-A tower in EY are on going.		  * Commissioning in vacuum:
 * Acceptance check: Cryo-payload in IX/EX and Type-A tower in EY/IX are on going.
Line 20: Line 21:
 * Jig for FC painting: Delivered.  * Jig for FC painting: Assembling.
 * Overall commissioning: To be considered about personnel.
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14:00-15:30 14:00-15:00
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Participants: Participants: Takahashi, Miyo, Aso, Sato, Hirata, Ikeda, Ishizaki, Sugiyama, Terrence, Fabian, Tanaka
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=== Schedule ===
{{http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210219?action=AttachFile&do=get&target=vis_gant_0219.png|vis_gant+0219|width="1000"}}
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=== Electronics === [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|JGW-L2011475-v26]]
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=== Control === === General ===
'''General'''
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Summary:

 * [Ikeda] Investigation of the cable length for network cable and temperature control in center are was done. Investigation for both end station was not. [1,2]
 * [Miyo] Automation script to make the foton files was made[3]. In this week I reproduce the OSEMINF foton file for all Type-Bp suspension by suing the script. This script will help us to avoid human error.

klog:

 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15737|15737]] We investigated the network connection. , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16028|16028]] Comment, __satoru.ikeda__
 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16036|16036]] Cabling for temperature control equipment , __satoru.ikeda__
 1. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16038|16038]] Initialize the OSEMINF filters for all Type-Bp suspensions , __kouseki.miyo__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16040|16040]] Comment, __kouseki.miyo__

=== Type-C ===
'''MCF''' Summary:

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16041|16041]] Recovery of IMC suspension , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16049|16049]] Comment, __naohisa.satou__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16041|16041]] Recovery of IMC suspension , __ryutaro.takahashi__

=== Type-A ===
'''EY''' Summary:

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15993|15993]] Setup of F2 , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16023|16023]] Comment, __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16034|16034]] Comment , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16050|16050]] Comment , __ryutaro.takahashi__

'''IX''' Summary:

 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16055|16055]] Setup of BF with the released cryo-payload , __ryutaro.takahashi__

=== Type-Bp ===
'''PR2'''

Summary: [Miyo] I connected the cables for PRM minirack because these had been disconnected from Fujimi-sangyo clean work.

 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16054|16054]] PR2 minirack is moved to 2nd floor , __kouseki.miyo__

'''PR3''' Summary:

=== Type-Bp ===
 * After the release of the jammed picomotor, Ikeda-san moved back the sliding mass but he was unable to recover the same orientation of the IM according to the OSEMs. Pitch and were ended up with different values.
 * The transfer functions showed an unhealthy system.
 * Before doing visual inspection of the IM I moved IM-Y to zero from 1.78 mrad. However, while opening the chamber (cloth covers) it moved to about -500 urad. Moreover, during subsequent work it went to -2.3 mrad and it's been stable there.
 * A few OSEM flags seem to be touching the OSEM bodies. Their positions are consistent with the large amount of yaw measured.
 * About cables:
  * Cables from the IM touch cables from the IM. (Lilkely not good but not too bad.)
  * Cables from the IRM touch cables from the IRM. (Lilkely not good but not too bad.)
  * A cable from the BF is touching the BF Damper.
  * A cable from the BF Damper is touching the security structure before it's clamping point on the security structure.
  * We provided more slack to those cables by improvising a additional clamping point on the securuty structure. This might have improved the situation of H1 OSEM flag but it did not solve the overall problem.
  * There are some cables which are dangerously close to touching other cables.
 * Today we assesed again the position of the OSEM flags.
 * What do do?
  * Maybe we should move the BF picomotor again.
  * Adjust the tilt of BF by putting temporary ballast masses (in places yet to be decided) to see if the IM is released.
  * Move OSEM panels?

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15889|15889]] Traverser motor test and cabling. , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16027|16027]] Comment, __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16024|16024]] Comment, __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16026|16026]] Comment , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16032|16032]] Comment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16043|16043]] Comment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16052|16052]] Comment , __fabian.arellano__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16056|16056]] Comment , __fabian.arellano__

'''PRM''' Summary:

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16048|16048]] Operation check of Picomotor of PRM IM and BF , __satoru.ikeda__

=== Type-B ===
'''SR3''' Summary:

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|15963]] IM ballast mass adjustment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16009|16009]] Comment, __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16007|16007]] Ballast mass adjustment on top of BF , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16018|16018]] Comment, __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16035|16035]] Comment , __fabian.arellano__

=== Electronics (Tanaka-san) ===
=== Control (Miyo) ===
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 * '''When will we do the recovering work for type-Bp suspensions?'''
 * '''Cabling style of the thermistors is reviewed by SEO?'''
 *
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The week from 2/22

 * Takahashi: 2/23-2/28
 * Sato: 2/23-26
 * Hirata: 2/23-26
 * Yano: 2/23-26

The week from 3/1

 * Takahashi: 3/1-5
 * Sato: 3/1-5
 * Hirata: 3/1-5
 * Yano: 3/1-5
Line 54: Line 159:
 * On 2020/2/zz(Fri)  * On 2020/2/26(Fri)

Contents

  1. Agenda/Minutes on 2021/2/19
  2. CRY+VIS Interface Meeting
  3. VIS Meeting
    1. Progress report
      1. Schedule
      2. General
      3. Type-C
      4. Type-A
      5. Type-Bp
      6. Type-Bp
      7. Type-B
      8. Electronics (Tanaka-san)
      9. Control (Miyo)
    2. Towards O4
    3. Safety
    4. Discussion
    5. Travel Plans
    6. Next meeting

Agenda/Minutes on 2021/2/19

Zoom Meeting

CRY+VIS Interface Meeting

13:30-14:10

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

Post O3 Upgrade portal

  • Schedule for IX: Released on 2/18. BF was overload.
  • Schedule for IY: Disconnection is scheduled on 3/11.
  • Schedule for EX: Connection is scheduled in the week of 3/15.
  • Corrugate tube fixing jig: Re-measurement is planed in 2/26-3/1 at IYV.
  • Commissioning in air: Commissioning of IX will be started. Other schedule has not been decided yet.
  • 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: Assembling.
  • Overall commissioning: To be considered about personnel.

VIS Meeting

14:00-15:00

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

Progress report

Schedule

vis_gant+0219

JGW-L2011475-v26

General

General

Summary:

  • [Ikeda] Investigation of the cable length for network cable and temperature control in center are was done. Investigation for both end station was not. [1,2]
  • [Miyo] Automation script to make the foton files was made[3]. In this week I reproduce the OSEMINF foton file for all Type-Bp suspension by suing the script. This script will help us to avoid human error.

klog:

  1. 15737 We investigated the network connection. , satoru.ikeda

    • 16028 Comment, satoru.ikeda

  2. 16036 Cabling for temperature control equipment , satoru.ikeda

  3. 16038 Initialize the OSEMINF filters for all Type-Bp suspensions , kouseki.miyo

    • 16040 Comment, kouseki.miyo

Type-C

MCF Summary:

  • 16041 Recovery of IMC suspension , ryutaro.takahashi

    • 16049 Comment, naohisa.satou

  • 16041 Recovery of IMC suspension , ryutaro.takahashi

Type-A

EY Summary:

  • 15993 Setup of F2 , ryutaro.takahashi

    • 16023 Comment, ryutaro.takahashi

    • 16034 Comment , ryutaro.takahashi

    • 16050 Comment , ryutaro.takahashi

IX Summary:

  • (!) 16055 Setup of BF with the released cryo-payload , ryutaro.takahashi

Type-Bp

PR2

Summary: [Miyo] I connected the cables for PRM minirack because these had been disconnected from Fujimi-sangyo clean work.

  • (!) 16054 PR2 minirack is moved to 2nd floor , kouseki.miyo

PR3 Summary:

Type-Bp

  • After the release of the jammed picomotor, Ikeda-san moved back the sliding mass but he was unable to recover the same orientation of the IM according to the OSEMs. Pitch and were ended up with different values.
  • The transfer functions showed an unhealthy system.
  • Before doing visual inspection of the IM I moved IM-Y to zero from 1.78 mrad. However, while opening the chamber (cloth covers) it moved to about -500 urad. Moreover, during subsequent work it went to -2.3 mrad and it's been stable there.
  • A few OSEM flags seem to be touching the OSEM bodies. Their positions are consistent with the large amount of yaw measured.
  • About cables:
    • Cables from the IM touch cables from the IM. (Lilkely not good but not too bad.)
    • Cables from the IRM touch cables from the IRM. (Lilkely not good but not too bad.)
    • A cable from the BF is touching the BF Damper.
    • A cable from the BF Damper is touching the security structure before it's clamping point on the security structure.
    • We provided more slack to those cables by improvising a additional clamping point on the securuty structure. This might have improved the situation of H1 OSEM flag but it did not solve the overall problem.
    • There are some cables which are dangerously close to touching other cables.
  • Today we assesed again the position of the OSEM flags.
  • What do do?
    • Maybe we should move the BF picomotor again.
    • Adjust the tilt of BF by putting temporary ballast masses (in places yet to be decided) to see if the IM is released.
    • Move OSEM panels?

  • 15889 Traverser motor test and cabling. , fabian.arellano

    • 16027 Comment, satoru.ikeda

  • 15976 Picomotor of PR3_BF_T(Motor2) got stuck , satoru.ikeda

    • 16024 Comment, fabian.arellano

    • 16026 Comment , satoru.ikeda

    • 16032 Comment , fabian.arellano

    • 16043 Comment , fabian.arellano

    • 16052 Comment , fabian.arellano

    • (!) 16056 Comment , fabian.arellano

PRM Summary:

  • 16048 Operation check of Picomotor of PRM IM and BF , satoru.ikeda

Type-B

SR3 Summary:

  • 15963 IM ballast mass adjustment , fabian.arellano

    • 16009 Comment, fabian.arellano

  • 16007 Ballast mass adjustment on top of BF , fabian.arellano

    • 16018 Comment, fabian.arellano

    • 16035 Comment , fabian.arellano

Electronics (Tanaka-san)

Control (Miyo)

Towards O4

Safety

Discussion

  • When will we do the recovering work for type-Bp suspensions?

  • Cabling style of the thermistors is reviewed by SEO?

Travel Plans

The week from 2/22

  • Takahashi: 2/23-2/28
  • Sato: 2/23-26
  • Hirata: 2/23-26
  • Yano: 2/23-26

The week from 3/1

  • Takahashi: 3/1-5
  • Sato: 3/1-5
  • Hirata: 3/1-5
  • Yano: 3/1-5

Next meeting

  • On 2020/2/26(Fri)

KAGRA/Subgroups/VIS/VISMinutes20210219 (last edited 2021-02-20 09:40:40 by RyutaroTakahashi)