Agenda/Minutes of the VIS Meeting on 2017/5/19

2017/5/19 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

Plan for coming weeks

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• SF was set on the Traverser, and the chain below BF was suspended from SF (in the week of 5/8)
• BF weight and tilt was adjusted
  • We tuned the weight according to the height of the keystone.
  • Balanced the BF roughly according to the tilt of IRM. After that, we tuned more using the picomotors according to the IM OSEM signals.
• We found the BF FR was not moving well.
  • We opened the BF cap a little bit by hanging from the SF, and checked that the BF FR still has the actuation range.
  • The problem was wiring. We found that the resistance between 2-7 pin was much high (usually ~9 Ω just before the driver, but resistance between 2-7 was ~60 kΩ).
    • We fixed the cabling, and it started working again!!
  • The cap was closed after checking, and cabling was fixed.

Plan for coming weeks

• Tilt alignment of BF & IM

• Installation into the tank.

IMMT (Ohishi)

Past week report

• Checked the designed IMMT mirror position in IOO coordinate.

Plan for coming weeks

• Revise magnet fixture jig drawings
• Have a meeting with FCL at Mitaka on 26th morning.

Watchdog system (Tanaka)

Past week report

• Start mounting on the 19 inch rack(Main 4ch WDS box).--> Complete(the wiring is still).

• Start formulating an experimental plan(First test) at the KAGRA site.-->

  • Draft planPDF(JGW-E1706737)

Plan for coming weeks

• Start creation of extended I/O PCB(plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Ongoing.

Safety

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

Discussion

• JPS presentation

Travel Plans

• Travel (Week of 5/22):
  • Takahashi: 24 - 25
  • Shoda: 22 - 25
  • Mark: 22 - 25
  • Fabian: 22 - 25
  • Okutomi: 22 - 25
  • Fujii:
  • Ishizaki: 22 - 25
  • Hirata: 22 - 25
  • Sato: 22 - 25
  • Enzo: 22 - 25
  • Ohishi: 25 night -26 (Mitaka)
  • Tanaka:
  • Sekiguchi(Hosei): 23 - 25
  • Hirayama(Hosei): 23 - 25
• Travel (Week of 5/29):
  • Takahashi:
  • Shoda:
  • Mark:
  • Fabian:
  • Okutomi:
  • Fujii:
  • Ishizaki:
  • Hirata:
  • Sato:
  • Enzo:
  • Ohishi:
  • Tanaka:
  • Sekiguchi(Hosei):
  • Hirayama(Hosei):

Next meeting

On 2017/5/26(Fri) F2F in Mitaka