Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date : 13:30-

Participants :

Post O3 Upgrade portal

Schedule

IX: Oplev setting will be finished by 3/10. Mystery of 5-kg overload. The ballast on the F0 is too tall.
IY: The vent was finished on 3/2. Disconnection is scheduled on 3/11.
EX: Connection is scheduled in the week of 3/15.

Status

Corrugate tube fixing jig: Re-measurement was performed in 2/25-3/2 at IYV.
Commissioning in air: Commissioning of ITMX is delay. From April?
Commissioning in vacuum: From May?
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 is requested (after JPS meeting?).

Discussion

[Miyo] オフロード作業を無くすためのアイデア募集
- 問題意識：真空圧力が変わるとIPが傾いてPayloadが自身のEQフレームに当たる。（完全に傾かないようにする治具はそもそも不可能なので、傾いても大丈夫なアイデアがほしい。）
- [Miyo] そもそも、IPが傾いてIPのEQストップに当たった状態でもPayloadも同じく当たらないよう十分に退避させれば良い話に思える。その場合、IPがEQに当たった状態でFRをつかってもとに戻せるかどうか確認すべき。これはAcceptanceCheckに追加すべきか？

VIS Meeting

14:00-

Participants:

Schedule

klog

16142 IP and F0 stepper motor limit switches. , fabian.arellano
16084 Remedy of F0 , ryutaro.takahashi
- 16100 Comment , ryutaro.takahashi
- 16116 Comment , fabian.arellano
- 16128 Comment , fabian.arellano
- 16139 Comment , fabian.arellano
16142 IP and F0 stepper motor limit switches. , fabian.arellano
- 16159 Comment , fabian.arellano

General

16144 I turned off the electronics in VIS racks in the central room. , fabian.arellano
16036 Cabling for temperature control equipment , satoru.ikeda
- 16114 Comment , satoru.ikeda

16118 Setup of filter chain , ryutaro.takahashi
16118 Setup of filter chain , ryutaro.takahashi
- 16127 Comment , ryutaro.takahashi
- 16138 Comment , ryutaro.takahashi
- 16156 Comment , ryutaro.takahashi

16091 Monitoring of IP by ITMY venting , satoru.ikeda
16106 Comment , satoru.ikeda
16107 Comment , kouseki.miyo
16115 Comment , satoru.ikeda
16119 Comment , satoru.ikeda

MCE

16101 Preparation for fixing the MCe coil cable , naohisa.satou

MCF

16157 Investigation of IMC suspensions , ryutaro.takahashi

PR3

15976 Picomotor of PR3_BF_T(Motor2) got stuck , satoru.ikeda
- 16162 Comment , fabian.arellano

Progress report

TypeA

Replacement of LVDT coils for F0 was finished in EX.
Tuning of the filter chain is on going in IX.

TypeB

TypeBp

TypeC

Investigation and recovery of the IMC suspensions were performed on 3/4.

Electronics

Control

Safety

Discussion

Travel Plans

The week from 3/8

Takahashi: 3/8-3/12
Sato: 3/8-3/12
Hirata: 3/8-3/12
Yano: 3/8-3/12

The week from 3/15

Takahashi: 3/15-18
Sato: 3/15-19
Hirata: 3/15-19
Yano: 3/15-19

Next meeting

2021/3/12(FRI)

KAGRA/Subgroups/VIS/VISMinutes20210305 (last edited 2021-03-05 16:43:25 by RyutaroTakahashi)

-  ⇤ ← Revision 1 as of 2021-02-27 16:00:50 → 
  Size: 2851
  Editor: KousekiMiyo
  Comment:
+   ← Revision 50 as of 2021-03-05 08:37:20 → ⇥
  Size: 5096
  Editor: KousekiMiyo
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 8:
-Date : 13:30-13:45
+Date : 13:30-
 Line 15:
- * IX: Setting Oplev by 3/10. Preparing additional spring for BF.
 * IY: Disconnection is scheduled on 3/11.
+ * IX: Oplev setting will be finished by 3/10. Mystery of 5-kg overload. The ballast on the F0 is too tall.
 * IY: The vent was finished on 3/2. Disconnection is scheduled on 3/11.
 Line 20:
- * Corrugate tube fixing jig: Started the vent of IYV chamber on 26th. Re-measurement is on going in 2/25-3/2 at IYV.
 * Commissioning in air: Commissioning of IX will be delay. From April?
+ * Corrugate tube fixing jig: Re-measurement was performed in 2/25-3/2 at IYV.
 * Commissioning in air: Commissioning of ITMX is delay. From April?
 Line 25:
- * Jig for FC painting: Assembling.
 * Overall commissioning: To be considered about personnel.
+ * Jig for FC painting:
 * Overall commissioning: Schedule meeting is requested (after JPS meeting?).
 Line 28:
-Discussion
 * [Miyo] オフロード作業を無くすためのアイデア
  * 問題意識：真空圧力が変わるとIPが傾いて、Payloadが自身のEQフレームに当たる。傾かないようにする治具の再検討は難しいので、傾いても大丈夫なアイデアがほしい。
   1. IPが傾かないようなチャンバーを支える治具の再検討（これは別の話）
   2. そもそも、IPが傾いてEQストップに当たった状態でもPayloadも当たらないよう十分に退避させれば良い話に思える。その場合、IPがEQに当たった状態でFRをつかってもとに戻せるかどうか確認すべき。これはAcceptanceCheckに追加すべきか？
+== Discussion ==
 * [Miyo] オフロード作業を無くすためのアイデア募集
  * 問題意識：真空圧力が変わるとIPが傾いてPayloadが自身のEQフレームに当たる。（完全に傾かないようにする治具はそもそも不可能なので、傾いても大丈夫なアイデアがほしい。）
  * [Miyo] そもそも、IPが傾いてIPのEQストップに当たった状態でもPayloadも同じく当たらないよう十分に退避させれば良い話に思える。その場合、IPがEQに当たった状態でFRをつかってもとに戻せるかどうか確認すべき。これはAcceptanceCheckに追加すべきか？
-Line 37:
+Line 36:
-:00-14:30
+:00-
-Line 39:
+Line 38:
-Participants: Takahashi, Hirata, Miyo, Sato, Fabian, Sugiyama, Ishizaki, Aso, Terrence, Tanaka
+Participants:
-Line 42:
+Line 41:
- * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|Chart]]
 * Type-A team: IXV in 3/1-3, IMC in 3/4-5
 * Type-B team: EXV in 3/1-2, PR3 in 3/3-5
+[[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/Schedule|Schedule]]  

== klog ==
'''EX'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16142|16142]] IP and F0 stepper motor limit switches. ,  __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16084|16084]] Remedy of F0 ,  __ryutaro.takahashi__ 
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16100|16100]] Comment ,  __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16116|16116]] Comment ,  __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16128|16128]] Comment ,  __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16139|16139]] Comment ,  __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16142|16142]] IP and F0 stepper motor limit switches. ,  __fabian.arellano__ 
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16159|16159]] Comment , __fabian.arellano__
'''General'''
 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16144|16144]] I turned off the electronics in VIS racks in the central room. , __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16036|16036]] Cabling for temperature control equipment ,  __satoru.ikeda__ 
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16114|16114]] Comment ,  __satoru.ikeda__
'''IX'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16118|16118]] Setup of filter chain ,  __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16118|16118]] Setup of filter chain ,  __ryutaro.takahashi__ 
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16127|16127]] Comment ,  __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16138|16138]] Comment ,  __ryutaro.takahashi__
  * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16156|16156]] Comment , __ryutaro.takahashi__
'''IY'''
 * [[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=16106|16106]] Comment ,  __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16107|16107]] Comment ,  __kouseki.miyo__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16115|16115]] Comment ,  __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16119|16119]] Comment ,  __satoru.ikeda__
'''MCE'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16101|16101]] Preparation for fixing the MCe coil cable ,  __naohisa.satou__
'''MCF'''
 * (!) [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16157|16157]] Investigation of IMC suspensions , __ryutaro.takahashi__
'''PR3'''
 * [[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=16162|16162]] Comment , __fabian.arellano__
-Line 47:
+Line 78:
-<<MonthCalendar(,2021,2)>>
-Line 49:
+Line 79:
- * Replacement of LVDT coils for F0 in EX.
+ * Replacement of LVDT coils for F0 was finished in EX.
 * Tuning of the filter chain is on going in IX.
-Line 54:
+Line 85:
- * Investigation and recovery of IMC suspensions are requested.
+ * Investigation and recovery of the IMC suspensions were performed on 3/4.
-Line 61:
+Line 92:
- * O3GK Noise Budget : Seismic noise through the Type-A tower
  * [[https://gokagra.slack.com/archives/C015M111B5G/p1611978135005400]]
  * Calculation for the ETMY : much smaller than O3GK sensitivity, but larger than the design sensitivity
-Line 66:
+Line 94:
-The week from 3/1

 * Takahashi: 3/1-5
 * Sato: 3/1-5
 * Hirata: 3/1-5
 * Yano: 3/1-5
-Line 80:
+Line 101:
+The week from 3/15

 * Takahashi: 3/15-18
 * Sato: 3/15-19
 * Hirata: 3/15-19
 * Yano: 3/15-19
-Line 81:
+Line 109:
- * 2021/3/5(FRI)
+ * 2021/3/12(FRI)