|
Size: 1629
Comment:
|
← Revision 8 as of 2018-04-06 15:39:39 ⇥
Size: 5773
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 3: | Line 3: |
| 2018/4/6 13:30 - | 2018/4/6 13:30 - 14:50 |
| Line 5: | Line 5: |
| Participants: | Participants: Enzo, Shoda, Takahashi, Aso, Tanaka, Okutomi, Sato, Tanioka, Fujii, Ishizaki, Hirata, Mark |
| Line 15: | Line 15: |
[X-front] * Lifted up the EQ stop to access the F3 and recovered the touching problem in the F3. * Lifted down the EQ stop again. Extended the EQ stop to the F1 stage. * Tuned the F1. The lowest frequency was 0.45Hz. When the filter was suspended with the cap, it went to the bi-stable. * Decompressed the blades. Finally the frequency was around 0.5Hz. * Checked the FR in the F1. Adjustable rage of keystone was +/- 4mm. * Cabled around the F1 and checked the cable connection. * Lifted down the EQ stop. The end plate for the F1 was sit on the frame lock. * Extended the EQ stop to the top ring. [X-end] * Adjusted the height of filters. * Connected the PT100 sensor to the monitor line for CRY. * Check the FR range in the BF. |
|
| Line 17: | Line 33: |
| [X-front] * Set the bridge frame. * Prepare for the pre-isolator. |
|
| Line 18: | Line 38: |
| ==== Past week report ==== ==== Plan for coming weeks ==== |
==== Report for week of 4/2 ==== * Fujii-kun and Yamamoto-kun got the SR3 real time model running. * We received the SR3. * However Mark and Tanioka-kun found Hirose-san had applied the First Contact patterns on the wrong sides, so we took it to Yamamoto-san's lab and Toyama University and re-applied the FC properly. We also bounced a 1064 nm beam off it to verify that the HR and AR coatings were not also swapped (they were OK). * We made magnet-standoff assemblies for both SR3 and SRM, and set up for gluing the prisms and magnets. We will attach the prisms and magnet-standoffs on Monday. * Hirata-san did inventory of the SR3/SRM payload parts received last week and started on the inventory of screws. * Fujii-kun, Enzo and team finished the preparation, adjustment of the SFs and BFs. * They calibrated one SF and BF. (The remaining one SF and BF will take about another day. Also, the FR stops need to be checked.) * Enzo and Kozu-kun finished setting up the SR3 and SRM racks. (The SRM rack still lacks a front-end, and power and network connections, but the SR3 is now ready for testing.) * Shoda-san worked on getting quotes for the ballast masses, on design of the SRM metal mass, and on splitting the BS model to reduce the load on the front-end computer. ==== Plan for week of 4/9 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka * Tanioka-san at Kamioka, but possibly doing PEM stuff. * Others at Kamioka * -- * Finish SRM BF and SF calibration * Finish IMs and IRMs * Glue SR3 mirror ==== Plan for week of 4/16 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka * Tanioka-san at Mitaka? * Others at Kamioka * -- * Build 1xRM * Start SR3 Hang * Align assembly frame. ==== Plan for week of 4/23 ==== * Shoda-san at Mitaka * Fujii-san at Mitaka? * Mark, Enzo at Kamioka * Hirata-san at Mitaka * Tanioka-san at Mitaka? * -- * Clean parts (cable clamp bases, etc, etc). * Observe KAGRA Phase 1 operations, assist if problems arise. ==== Plan for week of 4/30 ==== * Golden Week! ==== To-Do Lists, Schedule ==== * [[KAGRA/Subgroups/VIS/TypeB/March2018]] * [[KAGRA/Subgroups/VIS/TypeB/April2018]] * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]] * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]] ==== Vacation Info ==== * Fabian vacation, 3/26-4/27 (then gone). |
| Line 24: | Line 96: |
| * We will schedule this work in June - July time frame. * Two days are required to complete the task |
|
| Line 35: | Line 110: |
| * Monthly crane inspection: 11:30 - 12:30 April 16 | |
| Line 37: | Line 113: |
| * Incidents: | * Incidents: no incident |
| Line 40: | Line 116: |
| * Type-A: * Type-B: * Type-Bp: |
* Type-A: Crane * Type-B: Working with springs |
| Line 45: | Line 121: |
* ETMY repair * F1 and F2 may be dead (the GAS is stack) * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=8125|Noise calculation]] by Okutomi * Two peaks go above the requirement (with a safety margin of 10) near 10Hz. * This excess noise seems to be acceptable * Propose to postpone the repair of ETMY to after O3 at the extended chief meeting. |
|
| Line 46: | Line 131: |
| * Request two slots (30min) * Type-A (10min), Type-B (10min), Control (10min) |
|
| Line 49: | Line 136: |
| * Takahashi: * Okutomi: * Sato: * Ishizaki: * Mark: * Hirata: * Enzo: |
* Takahashi: 10 - 13 * Okutomi: 9 - 13 * Sato: 9 - 13 * Ishizaki: 9 - 13 * Mark: 9 - 13 * Hirata: 9 - 13 * Enzo: 9 - 12 |
| Line 59: | Line 146: |
| * Tanioka: | * Tanioka: 9 - 13 |
| Line 61: | Line 148: |
| * Kozu (ICRR): | * Kozu (ICRR): 9 - 13 ? |
| Line 66: | Line 153: |
| * Takahashi: * Okutomi: * Sato: * Ishizaki: * Mark: * Hirata: * Enzo: |
* Takahashi: 16- 20 * Okutomi: 16- 20 * Sato: 16- 20 * Ishizaki: 16- 20 * Mark: 16- 20 * Hirata: 16- 20 * Enzo: 16- 20 |
| Line 76: | Line 163: |
| * Tanioka: | * Tanioka: |
| Line 78: | Line 165: |
| * Kozu (ICRR): | * Kozu (ICRR): 16- 20? |
Agenda/Minutes of the VIS Meeting on 2018/4/6
2018/4/6 13:30 - 14:50
Participants: Enzo, Shoda, Takahashi, Aso, Tanaka, Okutomi, Sato, Tanioka, Fujii, Ishizaki, Hirata, Mark
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-A (Takahashi)
Past week report
[X-front]
- Lifted up the EQ stop to access the F3 and recovered the touching problem in the F3.
- Lifted down the EQ stop again. Extended the EQ stop to the F1 stage.
- Tuned the F1. The lowest frequency was 0.45Hz. When the filter was suspended with the cap, it went to the bi-stable.
- Decompressed the blades. Finally the frequency was around 0.5Hz.
- Checked the FR in the F1. Adjustable rage of keystone was +/- 4mm.
- Cabled around the F1 and checked the cable connection.
- Lifted down the EQ stop. The end plate for the F1 was sit on the frame lock.
- Extended the EQ stop to the top ring.
[X-end]
- Adjusted the height of filters.
- Connected the PT100 sensor to the monitor line for CRY.
- Check the FR range in the BF.
Plan for coming weeks
[X-front]
- Set the bridge frame.
- Prepare for the pre-isolator.
Type B (Mark)
Report for week of 4/2
- Fujii-kun and Yamamoto-kun got the SR3 real time model running.
- We received the SR3.
- However Mark and Tanioka-kun found Hirose-san had applied the First Contact patterns on the wrong sides, so we took it to Yamamoto-san's lab and Toyama University and re-applied the FC properly. We also bounced a 1064 nm beam off it to verify that the HR and AR coatings were not also swapped (they were OK).
- We made magnet-standoff assemblies for both SR3 and SRM, and set up for gluing the prisms and magnets. We will attach the prisms and magnet-standoffs on Monday.
- Hirata-san did inventory of the SR3/SRM payload parts received last week and started on the inventory of screws.
- Fujii-kun, Enzo and team finished the preparation, adjustment of the SFs and BFs.
- They calibrated one SF and BF. (The remaining one SF and BF will take about another day. Also, the FR stops need to be checked.)
- Enzo and Kozu-kun finished setting up the SR3 and SRM racks. (The SRM rack still lacks a front-end, and power and network connections, but the SR3 is now ready for testing.)
- Shoda-san worked on getting quotes for the ballast masses, on design of the SRM metal mass, and on splitting the BS model to reduce the load on the front-end computer.
Plan for week of 4/9
- Shoda-san at Mitaka
- Fujii-san at Mitaka
- Tanioka-san at Kamioka, but possibly doing PEM stuff.
- Others at Kamioka
- --
- Finish SRM BF and SF calibration
- Finish IMs and IRMs
- Glue SR3 mirror
Plan for week of 4/16
- Shoda-san at Mitaka
- Fujii-san at Mitaka
- Tanioka-san at Mitaka?
- Others at Kamioka
- --
- Build 1xRM
- Start SR3 Hang
- Align assembly frame.
Plan for week of 4/23
- Shoda-san at Mitaka
- Fujii-san at Mitaka?
- Mark, Enzo at Kamioka
- Hirata-san at Mitaka
- Tanioka-san at Mitaka?
- --
- Clean parts (cable clamp bases, etc, etc).
- Observe KAGRA Phase 1 operations, assist if problems arise.
Plan for week of 4/30
- Golden Week!
To-Do Lists, Schedule
Vacation Info
- Fabian vacation, 3/26-4/27 (then gone).
Type-Bp (Shoda)
Past week report
- I found that the most of the magnet direction of PRM IM flag are facing wrong. We should fix the consistency with the compensation magnets at some point.
- We will schedule this work in June - July time frame.
- Two days are required to complete the task
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
Watchdog system (Tanaka)
Past week report
Plan for coming weeks
Other site works
- Monthly crane inspection: 11:30 - 12:30 April 16
Safety
- Incidents: no incident
- Foreseen risks
- Type-A: Crane
- Type-B: Working with springs
Discussion
- ETMY repair
- F1 and F2 may be dead (the GAS is stack)
Noise calculation by Okutomi
- Two peaks go above the requirement (with a safety margin of 10) near 10Hz.
- This excess noise seems to be acceptable
- Propose to postpone the repair of ETMY to after O3 at the extended chief meeting.
- F2F talk
- Request two slots (30min)
- Type-A (10min), Type-B (10min), Control (10min)
Travel Plans
- Travel (Week of 4/9):
- Takahashi: 10 - 13
- Okutomi: 9 - 13
- Sato: 9 - 13
- Ishizaki: 9 - 13
- Mark: 9 - 13
- Hirata: 9 - 13
- Enzo: 9 - 12
- Shoda:
- Ohishi:
- Fujii:
- Tanioka: 9 - 13
- Tanaka:
- Kozu (ICRR): 9 - 13 ?
- Arai (ICRR):
- Travel (Week of 4/16):
- Takahashi: 16- 20
- Okutomi: 16- 20
- Sato: 16- 20
- Ishizaki: 16- 20
- Mark: 16- 20
- Hirata: 16- 20
- Enzo: 16- 20
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR): 16- 20?
- Arai (ICRR):
Next meeting
On 2018/4/13(Fri)