Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date: 2022/12/2 13:00-13:15
Participants: Takahashi, Node, Sato, Mitsuhashi, Ikeda, Hirata, Uchiyama, Aso, Akutsu, Ushiba
Status
- Type-A: Offload of the BF in IY. Recovery from the large swing in IX.
- Type-B: Implementation of the vertical sensor correction in SR2 and SR3.
- Type-Bp:
- Type-C: Health check of the OMMT1/2/OSTM suspensions.
Other items
- Replacement of cables: EXT remains.
- Oplev: Centering of the QPD for MNV in EY.
- ACC:
- Commissioning:
- Vacuum system: EYT GV was opened on 11/29.
- Heater control:
- TMS:
Discussion
VIS Meeting
Date: 2022/12/2 13:30-14:05
Participants: Takahashi, Uchiyama, Ushiba, Fabian, Mitsuhashi, Tanaka, Aso
Summary Report
Type-A
- Offloaded the BF GAS in IY.
Type-B
- Intercalibration factors between the seismometer on the ground and F0 LVDTs were calculated for SR2 and SR3.
- The result for SR3 makes sense according to the method used. The LVDT has a good sensitivity.
- It was not possible to carry out the calculation for SR2 due to the poor sensitivity of the LVDT.
- Last week, I calculated the intercalibration factor for the BS F0 LVDT, using information of two peaks only (out of three). I'm still on the process of figuring out if this is reliable.
Type-Bp
Type-C
- Measured the transfer functions of the OMMT1/2/OSTM suspensions after the evacuation. They looked healthy.
Electronics
Control
Schedule
- Type-A: Test of ACCs.
- Type-B: Use Terrence's methods to tune SR3 F0 and IP; check whether it's possible to do LVDT sensor correction in SRM F0.
- Type-Bp: Check whether it's possible to do LVDT sensor correction in PR SFs.
- Type-C:
Safety
Discussion
Travel Plans
(Date in Kamioka)
The week from 12/5
- Takahashi: 12/8-9
- Hirata: 12/6-9
The week from 12/12
Next meeting
- 2022/12/9(FRI) 13:30