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 * Shoda-san, Hirata-san and Kozu-kun weighed the IM without ballast masses, and then added the lower masses and installed the IM on the assembly frame.
 * They cleaned the assembly frame and installed new jack receptacles on the load gauge adapter.
 * Shoda-san, Hirata-san and Kozu-kun cleaned the assembly frame and installed new jack receptacles on the load gauge adapter.
 * They
weighed the IM without ballast masses, and then added the lower masses and installed the IM on the assembly frame.
Line 64: Line 64:
 * Shoda-san to work on readjusting PR3 and also making OSEMs.
* Enzo and Kozu-kun to help with making OSEMs.
 * Shoda-san to work on making OSEMs - Enzo and Kozu-kun to help and learn.
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  * Time permitting, do TF test from coils to optical sensor.   * Time permitting, do TF test from coils to OL pitch and yaw.

Agenda/Minutes of the VIS Meeting on 2018/1/12

2018/1/12 13:30 -

Participants:

Progress report

Schedule Chart

Type-A : (PDF/MPP)

Type-B: (PDF,MPP)

  • Type-A:
  • Type-B:

Type-A (Takahashi)

Past week report

[X-end]

  • Replaced the vacuum gauge.
  • Connected the PT100 sensor to the monitor.
  • Fastened the top chamber and the hatch on the cross tube.
  • Started evacuation of EXV chamber on the 28th in Dec. The present pressure is 78Pa.
  • Transported the items to the center room (footholds, workbench, chain bolocks, tools, etc.)

[Y-end]

  • Transported the dummy payload to the center room.

[X-front]

  • Lifted up the items from the X/Y-end.

Plan for coming weeks

  • The evacuation of EYV chamber will be started in the 19th morning.
  • Prepare to start assembly of DF in the clean booth.
  • The short rod for DP is missing.
  • The assembly of pre-isolaor for SRM is planed.

Type B (Mark)

Report for week of 12/25

  • Hirata-san got the L-brackets machined and washed, and installed them on the IM ring bars.
  • Shoda-san recovered the BS from the power outage on 12/25.
  • Miyakawa-san fixed an issue with the SR2 RTM which had prevented it from running.
  • Shoda-san, Hirata-san and Kozu-kun cleaned the assembly frame and installed new jack receptacles on the load gauge adapter.
  • They weighed the IM without ballast masses, and then added the lower masses and installed the IM on the assembly frame.
  • They installed the winch system on the IM, and inspected the clamp pieces for possible scratches.
  • They ran cables for the SR2 steppers and OSEMs.
  • They calibrated the BF LVDT.

Report for week of 1/4

  • Mark fixed a number of errors with the Type B screens.

Report for week of 1/9

  • We weighed the mirror in its box (and later the empty box), and the RM.
  • Fabian worked on the SR2/SR3/SRM mass budget and did an inventory of spare ballast masses.
  • We hung the SR2 and RM.
  • We assembled the bottom section of the security structure below the RM.
  • We cabled the RM OSEMs up to the IM.
  • Hirata-san gave up on waiting for a third quote for the blades and blade parts and started the ordering process.
  • Hirata-san got rod cable clamp parts from Takahashi-san and worked on drawings for the improved BS vertical and yaw adjusters.

Plan for week of 1/15

  • Fabian at Mitaka Monday 1/15 to inspect filter load test items.
  • All at Kamioka.
  • Shoda-san to work on making OSEMs - Enzo and Kozu-kun to help and learn.
  • Test RM OSEMs.
    • Check coil driver is successfully driving current.
    • Time permitting, do TF test from coils to OL pitch and yaw.
  • Suspend IM using load gauge adapter, and check/adjust total mass and balance.

Plan for week of 1/22

  • All at Kamioka
  • Bring in BF and suspend IM.
  • Route final RM/IM cables up to below BF.
  • Recheck/adjust total mass and balance.
  • Route selected cables to flange.
  • Test IM picos and BF yaw pico.

Plan for week of 1/29

  • Enzo at Mitaka 1/29 and most of 1/30, then vacation.
  • Kozu-kun away.
  • All others at Kamioka.
  • Build IRM around IM.
  • Cable/test/adjust IM OSEMs.
  • Time permitting, do TFs from IM OSEMs to themselves and to optical sensor.

Vacation Info

  • Enzo 1/30-2/19 (at Mitaka 1/29, part of 1/30)
  • Kozu-kun 1/29-2/2

Type-Bp (Shoda)

Past week report

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

  • Talked with Miyakawa-san about digital system for OMMT/OSTM.
    • He will prepare the rack around this spring.
  • Prepared Al stand for OSEM test.
    • I found that coil wire of a sample OSEM was broken.
  • Ordered non-magnetic screws for Intermediate Mass.
    • Nabeya Bi-tech Kaisha(NBK) recommend material Ti-6Al-4V.

Plan for coming weeks

  • Aso-san will send remaining (about 40?) OSEMs from Mitaka.
  • Some parts for hanging jig ordered last year will arrive.

Watchdog system (Tanaka)

Past week report

  • Order request has been completed(To order the University of Tokyo).--> Delivery completed. And Digikey's parts delivery completed.

  • Start other ordering.-->Meeting due to order change procedure to vendor.

Plan for coming weeks

  • Start ordering sequentially for mass products..-->But some adjustment works are necessary.

  • Preparation for assembly of mass products.

Other site works

  • Parking space

Safety

  • Incidents:
  • Foreseen risks
    • Type-A:
    • Type-B:
    • Type-Bp:

Discussion

  • Commissioning support
  • Lab. temperature

Travel Plans

  • Travel (Week of 1/15):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Ishizaki:
    • Mark:
    • Fabian:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):
  • Travel (Week of 1/22):
    • Takahashi:
    • Okutomi:
    • Sato:
    • Ishizaki:
    • Mark:
    • Fabian:
    • Hirata:
    • Enzo:
    • Shoda:
    • Ohishi:
    • Fujii:
    • Tanaka:
    • Kozu (ICRR):
    • Arai (ICRR):

Next meeting

On 2018/1/19(Fri)

KAGRA/Subgroups/VIS/VISMinutes20180112 (last edited 2018-01-12 15:04:39 by YoichiAso)