Agenda/Minutes

Zoom Meeting

CRY+VIS Interface Meeting

Date: 2021/7/9 13:00-14:00

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

Post O3 Upgrade portal

Schedule

• IX: To the finalization.
• EX: Alignment for the green beam was finished. To the finalization
• IY: Height adjustment is on going.
• EY: Mirror cleaning is on going in Mitaka. Measurement system had a problem. The shipping will be in the end of next week at earliest.

Status

• Corrugate tube fixing jig: Implementation is scheduled on 7/12-13.
• TM height setting: ITMY.
• Commissioning in air: X-arm.
• Commissioning in vacuum:
• Overall commissioning:
• Acceptance check: Every Friday.
• PF actuator: After SC.
• Separation of rack in 2F: This is scheduled on 7/16.
• New vacuum pumps for V-chambers: Considering the port location.
• Extension of cables for picomotor drivers: Tested in EYV.

Discussion

Adjustable height range of the filter chain in IY

• Present height range

• The condition of F1 stepper motor is the same as the F3 in IX. We tried to move the motor with the stand alone driver, but the FR is still not working.
  • The motor is still not working?
  • The FR slider is stuck?
• The range of BF is too small. Check the mechanical stopper.
• Tune the F0 more to lower frequency (now 0.4Hz) in order to extend the range.

Next meeting

• 2021/7/16(FRI)

Klog

EX

• 17376 ETMX IM dewhitening filters and comb60 filters are implemented , takafumi.ushiba

• 17396 Oplev preparation at EXC , takaaki.yokozawa

• 17450 Oplev calibration EX TM oplev , takaaki.yokozawa

• 17496 ETMX IM photosensor trouble shooting , takafumi.ushiba

• 17267 Oplev preparation work EX , takaaki.yokozawa

• 17362 Comment , takaaki.yokozawa

• 17358 Injection of OpLev lasers to the cryostat at EXC , takafumi.ushiba

• 17361 Comment , takaaki.yokozawa

EY

• 17457 dial gauge installation, Pico motor cable extension test , naohisa.satou

• 17485 Replacement of fixing jigs for the corrugate tube , ryutaro.takahashi

General

• 17369 Added EPICS channel for VIS temperature adjustment , satoru.ikeda

• 17368 Implemented some Oplev-related fixes to the VIS model file. , satoru.ikeda

• 17388 Implementation of sensor to EULER matrix for IM photosensors , takafumi.ushiba

• 17455 TypeA,B,Bp VIS Guardian changed to SAFE , satoru.ikeda

• 17079 Organizing DAQ channels for VIS , satoru.ikeda

• 17460 Comment , satoru.ikeda

IX

• 17400 Modification of damp_temp filter for MN DAMP filter of ITMX , takafumi.ushiba

• 17405 IX Pico motor driver was broken and replaced. , koji.nakagaki

• 17449 Oplev calibration IX TM oplevs , takaaki.yokozawa

• 17468 MNH1 actuator of ITMX seems to have an issue. , takafumi.ushiba

• 17482 Re-calibration of the IX TM length oplev , takaaki.yokozawa

• 17481 ITMX MNH1 cable repairement , takafumi.ushiba

• 17335 Checked resistance of TF and BF LVDT actuators coil. , naohisa.satou

• 17367 Comment , naohisa.satou

• 17377 Comment , ryutaro.takahashi

• 17405 IX Pico motor driver was broken and replaced. , koji.nakagaki

• 17420 Comment , satoru.ikeda

• 17449 Oplev calibration IX TM oplevs , takaaki.yokozawa

• 17461 Comment , takafumi.ushiba

• 17469 Comment , takafumi.ushiba

• 17497 Comment , kouseki.miyo

• 17468 MNH1 actuator of ITMX seems to have an issue. , takafumi.ushiba

• 17472 Comment , takafumi.ushiba

• 17482 Re-calibration of the IX TM length oplev , takaaki.yokozawa

• 17488 Comment , takafumi.ushiba

• 8564 ITMX healthy check after pump down , lucia.trozzo

• 17366 Comment , kouseki.miyo

IY

• 17406 Setup of pre-isolator , ryutaro.takahashi

• 17484 Replacement of fixing jigs for the corrugate tube , ryutaro.takahashi

• 17406 Setup of pre-isolator , ryutaro.takahashi

• 17431 Comment , ryutaro.takahashi

• 17441 Comment , ryutaro.takahashi

• 17498 Comment , naohisa.satou

PR2

• 17478 Rotate PR2 mirror by IM_YAW picomotor but we had better to use traverser , kouseki.miyo

SR2

• 17434 Cable connection check , naoatsu.hirata

SR3

• 17439 Cable connection check , naoatsu.hirata

SRM

• 17314 Optical lever installation , fabian.arellano

• 17372 Comment , fabian.arellano

• 17499 Comment , terrence.tsang

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Summary Report

Type-A

• Adjusted the ballasts on the cryo-payload and the BF in IY. Additional spring was implemented on the BF.
• Repaired the broken cables for TF/BF actuator opening the chamber. The BF and TF were recovered and the chamber was closed.

Type-B

Type-Bp

Type-C

Electronics

Control

Schedule

See Schedule

• Type-A team: Adjustment of IYV
• Type-B team: MSB

Milestone

• IMC suspensions are ready in air [40] will finish 2021/04/21.

• PRs are ready in air [643] will finish 2021/07/09.

• 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 2021/11/24.

• SRs are ready in air [663] will finish 2021/12/20.

• Output suspensions are ready in air [695] will finish 2021/12/21.

• TMSY is ready in air [708] will finish 2021/??/??.

• TMSX is ready in air [684] will finish 2021/??/??.

2021/03/29 updated

Safety

Discussion

Travel Plans

The week from 7/5

• Takahashi: 7/5-8 (KIW8 7/7-9)
• Sato: 7/5-8
• Hirata: 7/5-9
• Yano: 7/5-9

The week from 7/12

• Takahashi: 7/12-16
• Sato: 7/12-16
• Hirata: 7/12-16
• Yano: 7/12-16

Next meeting

• 2021/7/16(FRI)