Agenda/Minutes of the VIS Meeting on 2017/9/22

2017/9/22 13:30 -

Participants:

Progress report

Schedule Chart

Type-A & Bp : (PDF,MPP)

Type-B: (PDF,MPP)

• Type-A:
• Type-B:
• Type-Bp:

Type-A (Takahashi)

Past week report

[X-end]

19th(Tue)

• Tuned the F1. The frequency was 0.4Hz.

20th(Wed)

• Lifted down the F2 stage into the corrugate tube.
• Adjusted the FR in the F1.
• Installed the bridge frame and the pre-isolator into the clean booth.
• Extended the EQ stop to the top plate.
• Mounted the bridge frame on the foothold.

21st(Thu)

• Put the pre-isolator on the bridge frame.
• Inserted the maraging wire between the F1 and the TF.
• Tuned the load for TF roughly.
• Hung the F1 damper.
• Dismounted the pre-isolaotr.

22nd(Fri)

• Applied the cabling from F1 to the top plate.

[Center]

• Assembled the geophone pod.

Plan for coming weeks

• Install the pre-isolaotr into the chamber.
• Tune the IP.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• PRM installed
  • The suspension was installed.
  • But we found that the tank cannot be placed at the +y side of the PRM, since the space inside the clean booth was so tight. The tank was moved to the -y side using the fork lift and crane thanks to Kimura-san, Sawada-san, and Endo-san.
  • Cabling was almost done, but not yet checked.
  • Pylons for oplevs are installed. But no view port, nor oplev setup.

Plan for coming weeks

• No site work in the week of Sep. 25th
• In the week of Nov. 2nd:
  • Cabling check
  • Remove all the FC for the interferometer alignment, which will start from Nov. 10th.
  • Oplev setup, including viewport.
  • Suspension release and status check.
  • PR2 BF GAS status check. Turning on PR2 damping.

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

Watchdog system (Tanaka)

Past week report

• Waiting for concrete information on installation location.The type(High power,Low power)and number actually needed,and the peripheral equipment accompanying it.-->Waiting for information provision.

• I held a meeting to make estimates with several vendors.-->Price negotiation faileｄ.Because the assumed price is too low(The estimate of the manufacturing cost of the chassis was higher than expected).

  • (Current assumed price about 900,000 yen -->Vendor's quotation price about 2,000,000 yen)

• Creating the final version for mass production and running its operation test.-->Implementation is complete and completion of the initial operation test.

Plan for coming weeks

• Execution of the final version operation test for mass production ->Start of detailed exam.

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

Other site works

• Regular inspection of the forklift: Sept. 26 (Tue) 11:30～12：30
• BS duct connection: Oct 2 - 6
• End of Aug. to Nov.: Mozumi entrance will be closed

Safety

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

Discussion

Plan for the coming months

Oct. - Nov. 2017

Type-A

• Task list
  • In-vac test (EX)
  • Swap cables (EX)
  • Transpotation of IPs and SFs (ITM)
  • Assembly of BF (ITM)
  • Check ACCs (ITM)
  • Lift up items (ITM)
  • Site preparation (ITM)
• Man power
  • Takahashi
  • Okutomi
  • Sato
  • Ishizaki

Type-B

• Task list
  • Order necessary items for SR including payloads
  • Make an inventory of SR parts
  • Assembly of SR IMs
  • Assembly of SRM PI
  • ??
• Man power
  • Mark
  • Fabian
  • Hirata
  • Enzo
  • Kozu

Type-Bp

• Task list
  • Tuning
  • Mirror position measurements
• Man power
  • Shoda
  • Arai

Dec. 2017 - Mar. 2018

Type-A

• Man power
  • Takahashi
  • Sato
  • Ishizaki
  • Fujii (?)
  • Arai (?)
  • (Okutomi)

Type-B

• Man power
  • Mark
  • Fabian
  • Hirata
  • Enzo
  • Kozu
  • Shoda (?)

Travel Plans

• Travel (Week of 9/25):
  • Takahashi: 25-29
  • Okutomi: 25-29
  • Sato: 25-29
  • Ishizaki: 25-29
  • Mark: 25-29
  • Fabian: 25-29
  • Hirata: 25-29
  • Enzo: 25-26
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Yoshioka (Toyama): 26,27,29
  • Kozu (ICRR): ??
  • Arai (ICRR):
• Travel (Week of 10/2):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):

Next meeting

On 2017/9/29(Fri)