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Size: 1560
Comment:
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Size: 2515
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| Date: 2022/7/15 13:00- | Date: 2022/7/15 13:00-13:40 |
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| Participants: | Participants: Takahashi, Kimura, Akutsu, Yokozawa, Uchiyama, Yasui, Sato, Ushiba, Miyoki, Aso, Hirata |
| Line 16: | Line 16: |
| * EX: | * EX: Performance check at 80K. |
| Line 20: | Line 20: |
| * Type-Bp: Investigation of the previous data on PR2. | * Type-Bp: Investigation of the previous data on PR2. Calibration factor of BFH in PRM. |
| Line 26: | Line 26: |
| * Oplev: | * Oplev: Investigation of the glitches. |
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| * Commissioning in vacuum: Keeping the X-arm. Health check in Y-arm. | * Commissioning in vacuum: Try to see DRAM signals. |
| Line 31: | Line 31: |
| * New vacuum pumps: Schedule on the installation of the ion pumps. | * New vacuum pumps: Installation of the ion pumps in IX/IY is scheduled on 8/4,5. |
| Line 48: | Line 48: |
| * Ushiba-san plotted most of Type-B transfer functions in a way suitable for comparison. After remeasurig a few of them, I have the impression that the suspensions are healthy, although it seems there's still an unknown: in BS IM-R and IM-P see to have additional peaks in in SRs. I need to check in more detail. * We measured TFs at the individual coils and plotted them in a suitable way for comparison. I should double-check, but a cursory comparison suggessts they are all fine. No klog yet. * We checked the polarities of all the coil-magnet actuators in the four suspensions and everything seems consistent with what we know. No klog yet. |
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* On request from Takahashi-san: the oldest PR2 TF measurements I was able to find were from 26th of July 2019. |
Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date: 2022/7/15 13:00-13:40
Participants: Takahashi, Kimura, Akutsu, Yokozawa, Uchiyama, Yasui, Sato, Ushiba, Miyoki, Aso, Hirata
Schedule
- IX: Offload of GAS filters.
- EX: Performance check at 80K.
- IY: Health check and recovery.
- EY: Health check and recovery. Installation of the MNV oplev.
- Type-B: Health check.
- Type-Bp: Investigation of the previous data on PR2. Calibration factor of BFH in PRM.
- Type-C: Health check of the IMMT1/2.
Status
- Replacement of cables: EXT and BF temp.
- TM height setting:
- Oplev: Investigation of the glitches.
- ACC:
- Commissioning in air:
- Commissioning in vacuum: Try to see DRAM signals.
- Acceptance check: Type-Bp.
- New vacuum pumps: Installation of the ion pumps in IX/IY is scheduled on 8/4,5.
- Heater control: Pending.
- TMS:
Discussion
VIS Meeting
Date: 2022/7/15 14:00-
Participants:
Summary Report
Type-A
- Health check. Recovered the F2 in IY and the F1 in EY.
- Offloaded the GAS filters in IX.
Type-B
- Ushiba-san plotted most of Type-B transfer functions in a way suitable for comparison. After remeasurig a few of them, I have the impression that the suspensions are healthy, although it seems there's still an unknown: in BS IM-R and IM-P see to have additional peaks in in SRs. I need to check in more detail.
- We measured TFs at the individual coils and plotted them in a suitable way for comparison. I should double-check, but a cursory comparison suggessts they are all fine. No klog yet.
- We checked the polarities of all the coil-magnet actuators in the four suspensions and everything seems consistent with what we know. No klog yet.
Type-Bp
* On request from Takahashi-san: the oldest PR2 TF measurements I was able to find were from 26th of July 2019.
Type-C
Electronics
Control
Schedule
- Type-A:
- Type-B: Health check.
- Type-Bp:
- Type-C:
Safety
Discussion
Travel Plans
(Date in Kamioka)
The week from 7/19
- Sato: 7/19-22
- Hirata: 7/19-22
The week from 7/25
- Takahashi:
- Sato: 7/26-29
- Hirata: 7/26-29
Next meeting
- 2022/7/22(FRI)