Agenda/Minutes of the VIS Meeting on 2017/10/6

2017/10/6 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]

2nd(Mon)

• Installed the pre-isolator into the top chamber.
• Hooked the wire to the keystone in TF.
• Removed the Wire holder.

3rd(Tue)

• Installed two cross tubes to extend the ports for feedthrough.
• Connected the cables to the feedthroughs.
• Released the keystone in TF. All filter chain was suspended successfully.
• Assembled the horizontal geophone.

5th(Thu)

• The flange to partition the chamber to the corrugate tube and the cryostat was installed.

6th(Fri)

• Adjusted the weight of DP.
• Mounted the ballast rings on the IP.

[Y-end]

4th(Wed)

• Opened the top chamber.
• Locked the IP.
• Checked the motion of FRs.
• Found a mistake on the keystone of TF. It was locked.
• The IRM of cryo-payload was touching the EQ stoppers.
• Found over load for the BF. Weight of 2.4kg were removed from the cryo-payload so that the keystone of BF can be free.

5th(Thu)

• The cryo-payload was dismounted by the CRY group.
• Removed the wire and cables for cryo-payload from the BF.
• Closed the top chamber.

Plan for coming weeks

• Tune the IP.
• Set the BF damper.

Type B (Mark)

Past week report

Plan for coming weeks

Type-Bp (Shoda)

Past week report

• PR2
  • The top chamber is closed in order to protect from the dust.
  • Oplev beam was also aligned.
• PRM
  • We tried to set the oplev, but was not possible because of the vacuum tank interference. Since large YAW drift makes it tough to keep the beam aligned without the oplev reference, we gave up releasing the suspension.
• General
  • All the FC was removed. (Kimura-san gave us an adapter for the gas tube)
  • All picomotors network was checked. (PR2-IM driver was broken)
  • Guardian is ready thanks to Arai-kun.
  • Stepping motor can be actuated from Mozumi via python. Miyo-kun is working on the epics and the medm screen.
    • The stepping motors used in Type-A and B should also be setup. How to set up is described in DGS wiki. We still have a trouble in BO output. So the power cannot be controlled so far. But I think it can be done later. Just turn it on always for now.

Plan for coming weeks

• Comissioning

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

Watchdog system (Tanaka)

Past week report

• I held a meeting to make estimates with several vendors.-->I also requested a new vendor to make a quote(Waiting).

• Waiting for concrete information on installation location.-->Waiting for further detailed placement information.

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

• Execution of the final version operation test for mass production ->Detailed exam(Ongoing).

Plan for coming weeks

• Creation of extended I/O PCB plot type (With the Main 4ch WDS box and I/O box,I/O board For relay).-->Start of machining for EX I/O box(19 inch chassis).

• Execution of the final version operation test for mass production ->Detailed exam(Ongoing).

Other site works

• Center area will be a laser hazard area from Oct. 10
• 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

Travel Plans

• Travel (Week of 10/9):
  • Takahashi: 10-??
  • Okutomi: 10-??
  • Sato: 10-??
  • Ishizaki: 10-??
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR): ??
  • Arai (ICRR): ??
• Travel (Week of 10/16):
  • Takahashi:
  • Okutomi:
  • Sato:
  • Ishizaki:
  • Mark:
  • Fabian:
  • Hirata:
  • Enzo:
  • Shoda:
  • Ohishi:
  • Fujii:
  • Tanaka:
  • Kozu (ICRR):
  • Arai (ICRR):

Next meeting

On 2017/10/13(Fri)