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Size: 8488
Comment:
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Size: 8368
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 54: | Line 54: |
| 2017/2/5(Mon.) | 2017/2/6(Tue.) |
| Line 56: | Line 56: |
| * Remote participants by eZuce: Takahashi, Aso | * Remote participants by eZuce: Takahashi |
| Line 59: | Line 59: |
| * Vibration Isolation, * Restarted the BS realtime model. * Alignment: Izumi, Okutomi * ETMY transfer function has a different shape from what was measured before in the air. It means that ETMY might be touching somewhere. * For vertical, below BF transfer function seems to be OK. * Yaw might be rotating too much. * After 1/17, ETMY started showing something strange. Stiffness changed gradually, but Q did not change much. |
* Alignment and Vibration Isolation: Izumi, Okutomi * BF yaw transfer function showed that it did not move well. It was fount that the position of IP was different from when pumping down started. * IP drifted 2mm in the air, and another 2mm when pump down. (Takahashi) * ETMY IPs were set back to where they were on 1/13. The transfer function now has the similar shape as before, but the Q of lowest peak is a bit low. |
| Line 71: | Line 66: |
| * Alignment: *Izumi, Okutomi * We will rotate IP yaw to release somewhere touching. This work takes 1day at least. * Detchar for spectrum of suspension is necessary as soon as possible. |
* Alignment and Vibration Isolation: *Izumi * We can move moving masses of BF, or IPs of yaw to check TF can be recovered. * We will play one more day under vacuum. |
| Line 75: | Line 70: |
| * Vacuum * Gate valve will be closed today. * Needs 2days for evacuation. If once evacuated, cooling will be late ~2weeks. |
* Type A: *Yokozawa * RT model of Type A will be separated into cryopayload and tower. |
| Line 82: | Line 76: |
| * Laser hazard: PSL. At some in this evening, it will be the are over the SR line for double-checking the IMC alignment. Kokeyama is responsible for it. | * Laser hazard: PSL. Green might be used late of the afternoon, then the center area and Y end will be the hazard area. |
| Line 90: | Line 84: |
| Line 91: | Line 86: |
| * The ETMY mirror showed a strange scattering pattern. | * IP drifted 2mm in the air, and another 2mm when pump down. |
KAGRA Commissioning Wiki
Task list
Schedule
2017/2/5 updated 
Working people assignment
- *: responsible person
- Beam leading to REFP port
- *Izumi
Meetings
Morning meeting
- Date and time: Every weekday, 9AM
- Location: Control room, or eZuce
2017/2/6(Tue.)
- Remote participants by eZuce: Takahashi
- Report of work (*:responsible person)
- Alignment and Vibration Isolation: Izumi, Okutomi
- BF yaw transfer function showed that it did not move well. It was fount that the position of IP was different from when pumping down started.
- IP drifted 2mm in the air, and another 2mm when pump down. (Takahashi)
- ETMY IPs were set back to where they were on 1/13. The transfer function now has the similar shape as before, but the Q of lowest peak is a bit low.
- Alignment and Vibration Isolation: Izumi, Okutomi
- Work plan (*:responsible person)
- Alignment and Vibration Isolation: *Izumi
- We can move moving masses of BF, or IPs of yaw to check TF can be recovered.
- We will play one more day under vacuum.
- Type A: *Yokozawa
- RT model of Type A will be separated into cryopayload and tower.
- Type B
- SR assembly continues.
- Alignment and Vibration Isolation: *Izumi
- Laser hazard: PSL. Green might be used late of the afternoon, then the center area and Y end will be the hazard area.
- Weekly
- Week of 2/5
- Finding causes of ETMY trouble.
- Evacuation might be needed if ETMY is touching somewhere.
- Cooling also will be delayed for 2weeks or so.
- Finding causes of ETMY trouble.
- Week of 2/5
- Issues
- IP drifted 2mm in the air, and another 2mm when pump down.
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Weekly meeting
- Date and time: Every Tuesday, 11AM
- Location: Meeting room at Hokubukaikan, or eZuce, Polycom
No. |
Date |
Agenda |
Schedule |
Minute |
Files |
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17 |
2018/2/6 |
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16 |
2018/1/30 |
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15 |
2018/1/23 |
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14 |
2018/1/16 |
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13 |
2018/1/9 |
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12 |
2017/12/19 |
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11 |
2017/12/12 |
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10 |
2017/11/28 |
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9 |
2017/11/14 |
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8 |
2017/11/7 |
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7 |
2017/10/31 |
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6 |
2017/10/24 |
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5 |
2017/10/17 |
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4 |
2017/10/10 |
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3 |
2017/10/3 |
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2 |
2017/9/26 |
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1 |
2017/9/19 |
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Other meetings
Meeting for pump down and cooling at ETMY3 (Minute, Check list)
Meeting for pump down and cooling at ETMY2 (Minute, Check list)
Meeting for pump down and cooling at ETMY1 (Minute, Check list)
Meeting for closing ETY (Minute)
Meeting about PR2 pitch misalignment (Minute)
Documents
Communication tools