Agenda/Minutes of the VIS Meeting on 2017/1/27
2017/1/27 13:30 -
Participants:
Progress report
Type-A (Takahashi)
- Put a report here
Type B (Mark)
- Put a report here
Type-Bp (Shoda)
- Put a report here
IMMT (Ohishi)
- Put a report here
Watchdog system (Tanaka)
- Put a report here
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
- Type-Bp:
Discussion
- Travel plan for the rest of the FY (Aso)
- Please check and update (if necessary) the following travel sheet.
- Smaller coil design status update (Aso)
- Two possible designs for the magnet base
LIGO style one: image
- A dumbbell shaped aluminum stand-off
Smaller footprint -> smaller thermal noise
- Relatively soft (14kHz internal resonance)
- Easy to be bent
VIRGO style one: image
- Embedding a magnet in a aluminum cylinder
Has a larger footprint -> larger thermal noise.
- Rigid structure. Internal mode frequency is about 94kHz.
- After some discussion, we will employ the VIRGO like design.
- We probably do not need a chamfer.
- Two possible designs for the magnet base
Site work plan for the next week
- Mon: BF Adjustment (Type-B)/Measure TF (Type-Bp)
- Tue: Preparation (Type-A)/BF Adjustment (Type-B)/EQ stop assembly, BF setting (Type-Bp)
- Wed: Preparation (Type-A)/BF Adjustment (Type-B)/IM haning (Type-Bp)
- Thu: Preparation (Type-A)/TF measurement (Type-B)/IM haning (Type-Bp)
- Fri: Preparation (Type-A)/TF measurement (Type-B)/IM haning (Type-Bp)
Travel Plans
- Travel (Week of 1/23):
- Takahashi: 23-27
- Shoda: 23-27
- Mark: 23-27
- Fabian:
- Okutomi: 23-27
- Fujii:
- Ishizaki:
- Hirata:
- Sato: 23-27
- Enzo: 23-27
- Hashimoto (Hosei Univ.): 25-27
- Someya (Hosei Univ.): 23-27
- Ohishi:
- Travel (Week of 1/30):
- Takahashi: 30-2/3
- Shoda: 31-2/3
- Mark: 30-2/3
- Fabian:
- Okutomi: 30-2/3
- Fujii:
- Ishizaki: 30-2/3
- Hirata:
- Sato: 30-2/3
- Enzo: 30-2/3
- Ohishi:
Next meeting
On 2017/1/27(Fri) VIS F2F: Feb. 17th