Agenda/Minutes of the VIS Meeting on 2017/7/14

2017/7/14 13:30 -

Participants:

Progress report

Schedule Chart : (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

[X-end]

11th(Tue)

• Set the steel rack in the clean booth.
• Started pre-assembly of the BF damper.
• Assembled the DP stage.

12th(Wed)

• Assembled the dummy payload.
• Opened the top chamber.
• Installed the frame lock.

13th(Thu)

• Set the DP stage onto the frame lock.
• Started assembly of the BF stage.

[Y-end]

10th(Mon)

• Dismounted the dummy payload.
• Packed the items for X-end.

12th(Wed)

• Prepared cabling for the cryo-payload.
• Assembled test wire for the cryo-payload and hooked it to the BF.

13h(Thu)

• Cabled from the cryo-payload to the BF.
• Connected the cryo-payload.

14th(Fri)

• Suspended the cryo^payload.

Plan for coming weeks

• Test the connection with the cryo-payload.
• Install the bottom filter in X-end.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• The RM TF measurement is done. They seem to be OK.
• GAS calibration factor adjustment.
  • One of the coil driver injected large noise into the LVDT sensor. Asked Kamiizumi-san to check it next week.
• We hanged the IM.
  • It should be OK to use the HR surface for the pitch alignment. We hit the oplev bean on the 1st wire breaker to set it on the center line of the mirror.
  • We found that IRM cannot be assembled with the IM tilted so that the pitch of mirror is as designed.

  • With the help of Takahashi-san, we moved the suspension wire on the HR side at the bottom of the mirror in order to shorten the effective suspension wire length. -> mirror tilt seems to be fixed.

• IRM is assembled. IM OSEM signals are now online.

Plan for coming weeks

• BF FR actuation check
• TF measurement of IM stage
• Coupling measurement to TM pitch
• BF/BFRM hanging

IMMT (Ohishi)

Past week report

• Magnets were glued on IMMT1 mirror.
• Most of the mechanical parts arrived except for a pico-motor holder for IMMT1 and a connector holder for IMMT2.

Plan for coming weeks

• Glue magnets on IMMT2 mirror.
• Install IMMT mirrors in suspension.

Watchdog system (Tanaka)

Past week report

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

  • Order electronic parts -->Delivery complete(Tools for cutting and Part of electronic parts(Digikey)).

  • Order PCB's(Ex-I/O Interface and relative PCB's) -->Pending delivery(Next week).

• Start production of equipment(As soon as parts are delivered).-->Started making BOM(Bill of materials) for mass production.

• Start of preliminary experiment at KAGRA site.

Plan for coming weeks

• Start production of equipment(As soon as parts are delivered).

• Adjustment of experiment schedule etc. in the KAGRA side start. --> Plan(Next week(24th-))

  • 24th( Tokyo-->Toyama ),25-26th full(KAGRA),27th(Reserve and Toyama --> Tokyo )

Other site works

• 7/20 10:00 - 10:30 road to the KAGRA site closed
• 7/21 11:30 - 12:30 Crane inspection
• End of Aug. to Nov.: Mozumi entrance will be closed

Safety

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

Discussion

• F2F VIS status report
  • Request 30min
  • 10min each for Type-A, B and Bp

Travel Plans

• Travel (Week of 7/17):
  • Takahashi: 18 - 21
  • Okutomi: 18 - 21
  • Sato: 18 - 21
  • Ishizaki: 18 - 21
  • Mark: 18 - 21
  • Fabian:
  • Hirata:
  • Enzo: 18 - 21
  • Shoda: 18 - 21
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Hashimoto(Hosei):
  • Yoshioka: 18,19,21
• Travel (Week of 7/17):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Hashimoto(Hosei):
  • Yoshioka (Toyama): 25,26,28

Next meeting

On 2017/7/21(Fri)