Size: 11847
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Size: 11821
Comment:
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Deletions are marked like this. | Additions are marked like this. |
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=== 2018/4/18(Wed.) === | === 2018/4/25(Wed.) === |
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* VAC: *Kimura * One of the small leak was found where it was, but another large leak seems to exist. Leak hunting will last today. * There are 3 ways; * Leak location will be found and fixed without vent. -> ETMX gate valve will open, no delay. * Leak location will be found and not fixed without vent. -> Vent on Wednesday and Thursday, fix leak on Friday, pump down on Friday. -> ETMX gate valve will open, delay for several days. * Leak location will not be found and not fixed. -> ETMX gate valve will not open, no delay, but it will be difficult to find beam at ETMX. |
* IFO: *Izumi, Enomoto, Nakano + many * Michelson lock lasted ~40min with Guardian. * ETMX had some drift. It may cause lock down. |
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* ETMX: *Hasegawa * TF for MM coupling of photo sensor was found. * RMS motion seems to be OK if the mirror is not kicked. Even if the mirror is kicked, damping speed is ~10min or something. |
* Modulation frequency was not tuned yet to iMC length. * Measurement of AM conversion can know the matching of mod. freq. to iMC length. |
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* PR3: Oplev has glitch. The laser source of oplev may be a cause. Needs fiber cleaner to exchange the laser. | |
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* ETMY: *Nakano, Shishido * Yaw dampins seems to be OK. Coupling between pitch and yaw exists. After ~10min or so, oscillation starts up to 10urad. |
* BS: *Eleonora, Izumi, Arai * BS IM feed back was engaged. * Target crossover was originally 3Hz but actual crossover was limited up to ~0.1Hz, because 1.25Hz peak disturbed control. * Gain of some loops of oplev servo changed stronger. |
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* IFO: *Enomoto, Izumi * Trial lock of Michelson did not succeed because of too much motion of ETMY. |
* CAL: *Yamamoto, Enomoto, Izumi * Optical measumremnt was measured. * Sensitivity is shown in the control room, being calculated from H(t). |
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* BS: Eleonora, Izumi * We are optimizing diagonalization of L2P filter. Needs more time. |
* Injection: *Miyamoto, Yokozawa |
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* DGS: *Yamamoto * Interface card for PCIe on k1ioo was exchanged and connection between RTPC and IO chassis was established again. |
* Noise budget: *Michimura, Enomoto |
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* IOO: *Kokeyama, Enomoto * MCE trans was clipped. Output PSL was going down to bottom direction, and it was a cause of clipping. This clipping does not affect to IFO control. * ETMX: *Hasegawa, Nakano, Enomoto * ETMX has some drift for 10-20urad. * ETMY: *Nakano, *Shishido, Ushiba, Miyamoto * ETMY need L damping. * Gardian was implemented. |
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* IFO: Enomoto, Nakano * Damping, BS L2P, restoring alignment. |
* BS: *Eleonora, Izumi, Arai * Opleve loop gains will change stronger. |
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* VAC: *Kimura * Identifies the location of leak. |
* CAL: *Yamamoto, Enomoto, Izumi * Cal signal will be injected. * IFO: *Izumi, Enomoto, Nakano + many * Measurement without locking morning, measurement with locking in the afternoon. |
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* week of 4/16 | * week of 4/23 |
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* Leak check. * Opening the last gate valve. * week of 4/23 * Operation |
* 4/28 Operation start |
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* Large leak was found but it is not identified where it is. |
KAGRA Commissioning Wiki
Task list
Schedule
2017/4/17 updated
Working people assignment
- *: responsible person
Meetings
Morning meeting
- Date and time: Every weekday, 9AM
- Location: Control room, or eZuce
2018/4/25(Wed.)
* Remote participants by eZuce: None
Report of work (*:responsible person)
- IFO: *Izumi, Enomoto, Nakano + many
- Michelson lock lasted ~40min with Guardian.
- ETMX had some drift. It may cause lock down.
- Modulation frequency was not tuned yet to iMC length.
- Measurement of AM conversion can know the matching of mod. freq. to iMC length.
- PR3: Oplev has glitch. The laser source of oplev may be a cause. Needs fiber cleaner to exchange the laser.
- Michelson lock lasted ~40min with Guardian.
- BS: *Eleonora, Izumi, Arai
- BS IM feed back was engaged.
- Target crossover was originally 3Hz but actual crossover was limited up to ~0.1Hz, because 1.25Hz peak disturbed control.
- Gain of some loops of oplev servo changed stronger.
- BS IM feed back was engaged.
- CAL: *Yamamoto, Enomoto, Izumi
- Optical measumremnt was measured.
- Sensitivity is shown in the control room, being calculated from H(t).
- Injection: *Miyamoto, Yokozawa
- Noise budget: *Michimura, Enomoto
- IOO: *Kokeyama, Enomoto
- MCE trans was clipped. Output PSL was going down to bottom direction, and it was a cause of clipping. This clipping does not affect to IFO control.
- ETMX: *Hasegawa, Nakano, Enomoto
- ETMX has some drift for 10-20urad.
- ETMY: *Nakano, *Shishido, Ushiba, Miyamoto
- ETMY need L damping.
- Gardian was implemented.
Work plan (*:responsible person)
- BS: *Eleonora, Izumi, Arai
- Opleve loop gains will change stronger.
- CAL: *Yamamoto, Enomoto, Izumi
- Cal signal will be injected.
- IFO: *Izumi, Enomoto, Nakano + many
- Measurement without locking morning, measurement with locking in the afternoon.
Laser hazard
- [AM]
- IR: Upstream SR2-3 line, Xend 1F, Yend 1F
- Green: PR2, Xend 1F
- [PM]
- IR: Upstream SR2-3 line, Xend 1F, Yend 1F
- Green: PR2, Xend 1F
- [night]
- IR: Upstream SR2-3 line, Xend 1F, Yend 1F
- Green: PR2, Xend 1F
Weekly
- week of 4/23
- Michelson control.
- 4/28 Operation start
Issues
KAGRA/Commissioning/DailyWork << < 2024 / 7 > >> |
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Mon | Tue | Wed | Thu | Fri | Sat | Sun |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
8 | 9 | 10 | 11 | 12 | 13 | 14 |
15 | 16 | 17 | 18 | 19 | 20 | 21 |
22 | 23 | 24 | 25 | 26 | 27 | 28 |
29 | 30 | 31 |
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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27 |
2018/4/17 |
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26 |
2018/4/10 |
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25 |
2018/4/3 |
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24 |
2018/3/27 |
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23 |
2018/3/20 |
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22 |
2018/3/13 |
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21 |
2018/3/6 |
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20 |
2018/2/27 |
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19 |
2018/2/20 |
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18 |
2018/2/13 |
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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 test at ETMX 2 (Minute, Check list)
Meeting for pump down test at ETMX 1 (Minute, Check list)
Meeting for pump down test at Center are (Minute, Check list)
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