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Size: 3007
Comment:
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Size: 3011
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 35: | Line 35: |
| * Started preparation for swapping of IPs. | * Started the preparation for swapping of IPs. |
Agenda/Minutes of the VIS Meeting on 2018/7/13
2018/7/13 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[X-end]
- The keystone of F2 has gone to the upper side of bi-stable during the venting.
- Opened the cross tube and pulled down the filters, but the keystone of F2 (only) did not move.
- Opened the top chamber and set the height of F0 keystone to 4mm lower by the additional weight.
- Closed the cross tube and the top chamber to start evacuation.
[Y-front]
- Calibrated the LVDT in the F2.
- Measured the transfer function of F2 without additional load. The proper frequency was 0.63Hz
- Made more compression for the 6 blades. The proper frequency became 0.32Hz.
- Checked the range of FR. The FR can cover the full range of keystone height.
- Closed the cup and suspended the filter chain by the crane. The proper frequency changed to 0.40Hz (corresponding to the tuning frequency of 0.28Hz).
- Cabled around the F2. Checked the cable connections.
- Confirmed the signals of LVDT for the BF, the F3, and the F2 using the digital system.
- Lifted down the EQ stop into the corrugate tube. The end plate for F2 sit on the frame lock.
- Started the assembly of F1 stage. Assembled the end plate and embedded the FR onto the F1.
- Cabling in the F1.
- Started the preparation for swapping of IPs.
[X-front]
- Evaluated the ACCs.
Plan for coming weeks
- Setting of the F1.
- Transportation of the IPs from/to the first floor.
Type B (Mark)
Past week report
Plan for coming weeks
Type-Bp (Shoda)
Past week report
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
VIS electronics (Tanaka)
Past week report
Plan for coming weeks
Other site works
- July 26 11:30 - 12:30: Monthly crane inspection
- Sept 10(Mon): Planned power outage
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
Discussion
Travel Plans
- Travel (Week of 7/16):
- Takahashi:
- Okutomi:
- Sato:
- Lucia
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Terrence:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Travel (Week of 7/23):
- Takahashi:
- Okutomi:
- Sato:
- Lucia
- Ishizaki:
- Mark:
- Hirata:
- Enzo:
- Terrence:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2018/7/20(Fri)