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| * PRM guardian has an error that I could not solve. |
Agenda/Minutes of the VIS Meeting on 2018/3/2
2018/3/2 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[X-front]
- Finished the cabling between the BF and F3.
- Tuned the F3 again with hanging the F3 by crane.
- Final optimal load was additionally 1.2kg at 0.25Hz.
- Removed the primary coils for the BF damper.
- Checked cable connections and repaired some disconnections.
- Started the installation of F2. Assembled the FR in the F2.
Plan for coming weeks
[X-front]
- Measure the transfer functions of the BF and the F3.
- Lift down the BF into the corrugate tube.
- Extend the EQ stop for the F2.
[X-end]
- Vent the chamber on 5th.
- Remove the DP on 6th.
- Install the maraging wire for Cryo-payload with cables on 7th.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
- Takahashi-san, Aso-san, Ohishi-san, and Miyo-kun checked the suspension height. But the height was not much changed. So SF weight was not changed. I checked the LVDT trend since the installation. There are some jumps after data taking errors, including blackouts. Details will be uploaded to klog later.
- I prepared IP stepping motor med scripts. Actuation check is required.
- PRM guardian has an error that I could not solve.
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Preparation for assembly of mass products.-->Ongoing.
Adjustment and approval to vendors(Implementation adjustments and approvals for circuit boards.)-->
- Delivered( 5 of 6 substrates and Cables(assembled)).
- There are two casings yet(Adjusting with vendor)
Operation test of the initial product is completed. And I ordered the production of the residual mass-produced products.-->Pending delivery.
Plan for coming weeks
Preparation for assembly of mass products.-->
- Programming and Unit Testing(59 Items)
- Other necessary preparations.
- Adjustment and approval to vendors(Negotiating to guarantee machining delay of cases).
Other site works
- 2/26 - 3/9 Construction of the walls to isolate the arms better (for cleanliness) ＊3/8 or 3/9 no car in the access tunnel
- 3/12 - 3/16 Installation of the control systems for the large GVs
- 3/12 - Center area: preparation for pump down: connecting ducts.
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
- Center area pump down
- Vacuum flange status
- Securing cables
OpLev monitoring
- Drift monitoring during pump down
- Phase 1 operation measurements
- Minimum success criteria for each measurement
- Who will do the task
Travel Plans
- Travel (Week of 3/5):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Travel (Week of 3/12):
- Takahashi:
- Okutomi:
- Sato:
- Ishizaki:
- Mark:
- Fabian:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2018/3/9(Fri)
VIS Meeting in Mitaka: 3/16