Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date : 13:30-14:00

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

Post O3 Upgrade portal

Schedule

IX: Oplev setting will be carried out in April. Help of M.Takahashi-san will be necessary.
IY:
EX: Cryo-payload was installed. Release will be postponed.
EY: Installation of the F1 stage was started. Countermeasure for the contamination was scheduled on 4/5-6.

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. Review of each stage in Type-A tower is necessary.
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

14:00-14:40

Participants: Takahashi,Fabian, hirata, miyo, sato, Terrence, Aso, Tanaka

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

16260 Connection of cryo-payload , ryutaro.takahashi
- 16271 Comment , ryutaro.takahashi
- 16275 Comment , ryutaro.takahashi

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

16185 Added MN/PF OpLev to k1visitmxp's Model file. , satoru.ikeda
- 16278 Comment , satoru.ikeda

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)

-  ⇤ ← Revision 2 as of 2021-03-17 20:49:45 → 
  Size: 6449
  Editor: RyutaroTakahashi
  Comment:
+   ← Revision 18 as of 2021-03-19 15:50:29 → ⇥
  Size: 6184
  Editor: RyutaroTakahashi
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 8:
-Date : 13:30-
+Date : 13:30-14:00
 Line 10:
-Participants :
+Participants : Takahashi, Miyo, Kimura, Ushiba, Ikeda, Aso, Hirata, Sato, Tomaru
-Line 14:
+Line 15:
- * 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 April. Help of M.Takahashi-san will be necessary.
 * IY:
 * EX: Cryo-payload was installed. Release will be postponed.
 * EY: Installation of the F1 stage was started. Countermeasure for the contamination was scheduled on 4/5-6.
-Line 20:
+Line 21:
- * 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.
-Line 23:
+Line 24:
- * Acceptance check: Cryo-payload in IX/EX and Type-A tower in EY/IX are on going.
+ * Acceptance check: Check items for in-air commissioning should be confirmed on the payload. Review of each stage in Type-A tower is necessary.
-Line 33:
+Line 34:
-:00-
+:00-14:40
-Line 35:
+Line 36:
-Participants:
+Participants: Takahashi,Fabian, hirata, miyo, sato, Terrence, Aso, Tanaka
-Line 42:
+Line 43:
- * Type-A team: 3/22-26 installation in EY. 3/23 F0 tuning.
 * Type-B team: 3/22-26 PR3 setting.
+ * Type-A team: 3/22-26 installation in EY. 3/23 F0 tuning in EX.
 * Type-B team: 3/22-26 Remedy in PR3.
-Line 47:
+Line 48:
- * (!) [[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__
-Line 49:
+Line 59:
+ * [[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__
-Line 50:
+Line 64:
- * [[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__
-Line 55:
+Line 73:
-Line 56:
+Line 75:
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting ,  __satoru.ikeda__
-Line 58:
+Line 77:
- * [[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__
-Line 61:
+Line 81:
-Line 62:
+Line 83:
+ * [[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__
-Line 63:
+Line 88:
- * (!) [[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__
-Line 67:
+Line 94:
+ * [[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__
-Line 72:
+Line 101:
- * 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.
-Line 77:
+Line 106:
-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.
-Line 79:
+Line 109:
- * 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.
-Line 98:
+Line 120:
- * [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.
-Line 103:
+Line 121:
- * [Takahashi] Connected the release sensors to the DGS using the exchange cables in IY.
-Line 106:
+Line 122:
- * [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]]