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2018/4/6 13:30 - 2018/4/6 13:30 - 14:50
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Participants: Participants: Enzo, Shoda, Takahashi, Aso, Tanaka, Okutomi, Sato, Tanioka, Fujii, Ishizaki, Hirata, Mark
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==== Past week report ====
==== Plan for coming weeks ====		 ==== Report for week of 4/2 ====

 * Fujii-kun and Yamamoto-kun got the SR3 real time model running.
 * We received the SR3.
 * However Mark and Tanioka-kun found Hirose-san had applied the First Contact patterns on the wrong sides, so we took it to Yamamoto-san's lab and Toyama University and re-applied the FC properly. We also bounced a 1064 nm beam off it to verify that the HR and AR coatings were not also swapped (they were OK).
 * We made magnet-standoff assemblies for both SR3 and SRM, and set up for gluing the prisms and magnets. We will attach the prisms and magnet-standoffs on Monday.
 * Hirata-san did inventory of the SR3/SRM payload parts received last week and started on the inventory of screws.
 * Fujii-kun, Enzo and team finished the preparation, adjustment of the SFs and BFs.
 * They calibrated one SF and BF. (The remaining one SF and BF will take about another day. Also, the FR stops need to be checked.)
 * Enzo and Kozu-kun finished setting up the SR3 and SRM racks. (The SRM rack still lacks a front-end, and power and network connections, but the SR3 is now ready for testing.)
 * Shoda-san worked on getting quotes for the ballast masses, on design of the SRM metal mass, and on splitting the BS model to reduce the load on the front-end computer.

==== Plan for week of 4/9 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka
 * Tanioka-san at Kamioka, but possibly doing PEM stuff.
 * Others at Kamioka
 * --
 * Finish SRM BF and SF calibration
 * Finish IMs and IRMs
 * Glue SR3 mirror

==== Plan for week of 4/16 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka
 * Tanioka-san at Mitaka?
 * Others at Kamioka
 * --
 * Build 1xRM
 * Start SR3 Hang
  * Align assembly frame.

==== Plan for week of 4/23 ====
 * Shoda-san at Mitaka
 * Fujii-san at Mitaka?
 * Mark, Enzo at Kamioka
 * Hirata-san at Mitaka
 * Tanioka-san at Mitaka?
 * --
 * Clean parts (cable clamp bases, etc, etc).
 * Observe KAGRA Phase 1 operations, assist if problems arise.

==== Plan for week of 4/30 ====
  * Golden Week!

==== To-Do Lists, Schedule ====
 * [[KAGRA/Subgroups/VIS/TypeB/March2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/April2018]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]]
 * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]]
 * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]]

==== Vacation Info ====
 * Fabian vacation, 3/26-4/27 (then gone).
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 * We will schedule this work in June - July time frame.
 * Two days are required to complete the task
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 * Monthly crane inspection: 11:30 - 12:30 April 16
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 * Incidents:  * Incidents: no incident
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  * Type-A:
  * Type-B:
  * Type-Bp:		   * Type-A: Crane
  * Type-B: Working with springs
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 * ETMY repair
  * F1 and F2 may be dead (the GAS is stack)
  * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8125|Noise calculation]] by Okutomi
  * Two peaks go above the requirement (with a safety margin of 10) near 10Hz.
  * This excess noise seems to be acceptable
  * Propose to postpone the repair of ETMY to after O3 at the extended chief meeting.
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  * Request two slots (30min)
  * Type-A (10min), Type-B (10min), Control (10min)
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  * Takahashi:
  * Okutomi:
  * Sato:
  * Ishizaki:
  * Mark:
  * Hirata:
  * Enzo:		   * Takahashi: 10 - 13
  * Okutomi: 9 - 13
  * Sato: 9 - 13
  * Ishizaki: 9 - 13
  * Mark: 9 - 13
  * Hirata: 9 - 13
  * Enzo: 9 - 12
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  * Tanioka:   * Tanioka: 9 - 13
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  * Kozu (ICRR):   * Kozu (ICRR): 9 - 13 ?
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  * Takahashi:
  * Okutomi:
  * Sato:
  * Ishizaki:
  * Mark:
  * Hirata:
  * Enzo: 		  * Takahashi: 16- 20
  * Okutomi: 16- 20
  * Sato: 16- 20
  * Ishizaki: 16- 20
  * Mark: 16- 20
  * Hirata: 16- 20
  * Enzo: 16- 20
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  * Tanioka:   * Tanioka: 
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  * Kozu (ICRR):   * Kozu (ICRR): 16- 20?

Agenda/Minutes of the VIS Meeting on 2018/4/6

2018/4/6 13:30 - 14:50

Participants: Enzo, Shoda, Takahashi, Aso, Tanaka, Okutomi, Sato, Tanioka, Fujii, Ishizaki, Hirata, Mark

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-A (Takahashi)

Past week report

[X-front]

  • Lifted up the EQ stop to access the F3 and recovered the touching problem in the F3.
  • Lifted down the EQ stop again. Extended the EQ stop to the F1 stage.
  • Tuned the F1. The lowest frequency was 0.45Hz. When the filter was suspended with the cap, it went to the bi-stable.
  • Decompressed the blades. Finally the frequency was around 0.5Hz.
  • Checked the FR in the F1. Adjustable rage of keystone was +/- 4mm.
  • Cabled around the F1 and checked the cable connection.
  • Lifted down the EQ stop. The end plate for the F1 was sit on the frame lock.
  • Extended the EQ stop to the top ring.

[X-end]

  • Adjusted the height of filters.
  • Connected the PT100 sensor to the monitor line for CRY.
  • Check the FR range in the BF.

Plan for coming weeks

[X-front]

  • Set the bridge frame.
  • Prepare for the pre-isolator.

Type B (Mark)

Report for week of 4/2

  • Fujii-kun and Yamamoto-kun got the SR3 real time model running.
  • We received the SR3.
  • However Mark and Tanioka-kun found Hirose-san had applied the First Contact patterns on the wrong sides, so we took it to Yamamoto-san's lab and Toyama University and re-applied the FC properly. We also bounced a 1064 nm beam off it to verify that the HR and AR coatings were not also swapped (they were OK).
  • We made magnet-standoff assemblies for both SR3 and SRM, and set up for gluing the prisms and magnets. We will attach the prisms and magnet-standoffs on Monday.
  • Hirata-san did inventory of the SR3/SRM payload parts received last week and started on the inventory of screws.
  • Fujii-kun, Enzo and team finished the preparation, adjustment of the SFs and BFs.
  • They calibrated one SF and BF. (The remaining one SF and BF will take about another day. Also, the FR stops need to be checked.)
  • Enzo and Kozu-kun finished setting up the SR3 and SRM racks. (The SRM rack still lacks a front-end, and power and network connections, but the SR3 is now ready for testing.)
  • Shoda-san worked on getting quotes for the ballast masses, on design of the SRM metal mass, and on splitting the BS model to reduce the load on the front-end computer.

Plan for week of 4/9

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka
  • Tanioka-san at Kamioka, but possibly doing PEM stuff.
  • Others at Kamioka
  • --
  • Finish SRM BF and SF calibration
  • Finish IMs and IRMs
  • Glue SR3 mirror

Plan for week of 4/16

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka
  • Tanioka-san at Mitaka?
  • Others at Kamioka
  • --
  • Build 1xRM
  • Start SR3 Hang
    • Align assembly frame.

Plan for week of 4/23

  • Shoda-san at Mitaka
  • Fujii-san at Mitaka?
  • Mark, Enzo at Kamioka
  • Hirata-san at Mitaka
  • Tanioka-san at Mitaka?
  • --
  • Clean parts (cable clamp bases, etc, etc).
  • Observe KAGRA Phase 1 operations, assist if problems arise.

Plan for week of 4/30

  • Golden Week!

To-Do Lists, Schedule

Vacation Info

  • Fabian vacation, 3/26-4/27 (then gone).

Type-Bp (Shoda)

Past week report

  • I found that the most of the magnet direction of PRM IM flag are facing wrong. We should fix the consistency with the compensation magnets at some point.
  • We will schedule this work in June - July time frame.
  • Two days are required to complete the task

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

Watchdog system (Tanaka)

Past week report

Plan for coming weeks

Other site works

  • Monthly crane inspection: 11:30 - 12:30 April 16

Safety

  • Incidents: no incident
  • Foreseen risks
    • Type-A: Crane
    • Type-B: Working with springs

Discussion

  • ETMY repair
    • F1 and F2 may be dead (the GAS is stack)

    • Noise calculation by Okutomi

    • Two peaks go above the requirement (with a safety margin of 10) near 10Hz.
    • This excess noise seems to be acceptable
    • Propose to postpone the repair of ETMY to after O3 at the extended chief meeting.
  • F2F talk
    • Request two slots (30min)
    • Type-A (10min), Type-B (10min), Control (10min)

Travel Plans

  • Travel (Week of 4/9):
    • Takahashi: 10 - 13
    • Okutomi: 9 - 13
    • Sato: 9 - 13
    • Ishizaki: 9 - 13
    • Mark: 9 - 13
    • Hirata: 9 - 13
    • Enzo: 9 - 12
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka: 9 - 13
    • Tanaka:
    • Kozu (ICRR): 9 - 13 ?
    • Arai (ICRR):
  • Travel (Week of 4/16):
    • Takahashi: 16- 20
    • Okutomi: 16- 20
    • Sato: 16- 20
    • Ishizaki: 16- 20
    • Mark: 16- 20
    • Hirata: 16- 20
    • Enzo: 16- 20
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanioka:
    • Tanaka:
    • Kozu (ICRR): 16- 20?
    • Arai (ICRR):

Next meeting

On 2018/4/13(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180406 (last edited 2018-04-06 15:39:39 by YoichiAso)