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==== Plan for coming weeks ====
[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.

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)

KAGRA/Subgroups/VIS/VISMinutes20170922 (last edited 2017-09-28 22:07:26 by RyutaroTakahashi)