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| === December VIS work and vacuum work === * 12/10-11: Break the vacuum. Need to monitor the IP drift (BS, ITMX, ETMX) * 12/12-14: BS maintenance works * 12/12-13: Y-front Type-A Yaw FR replacement * 12/13: PR2 remove the broken IM OSEM cable -> repair * 12/17 - : Lazer hazard starts * 12/17: PR2 install a new cable * 12/17-21: X-front Type-A Yaw FR replacement, X-end Type-A Yaw FR replacement & FR repair * 12/24-28: Y-end Type-A Yaw FR replacement * 12/17-21: SR Yaw FR installation * 1/15 - : Center area, X-front and Y-end vacumm pumping. Need to monitor IP drift (BS, SR, ITMX, ETMY) * 1/21 - : Y-end vacuum break. Y-front vacuum pumping. Need to monitor drift (ETMY, ITMY) * 2/4 - : Y-end vacuum pumping. Need to monitor drift (ETMY) |
Agenda/Minutes of the VIS Meeting on 2018/11/16
2018/11/16 13:30 -
Participants:
Progress report
Schedule Chart
Type-A : (PDF/MPP)
Type-B: (PDF/MPP)
Type-C: (XLSX)
Type-A (Takahashi)
Past week report
[Y-end]
- Assembled and calibrated the geophones.
[Mitaka]
- Designed and ordered the yaw FR parts.
- Designed the ballast weight for TF.
Plan for coming weeks
- Adjustment of the filer position in IYV/EYV.
- Installation of the geophone pods to EYV.
Type B (Mark)
Report for week of 11/12
- SRM
- Hirata-san and Mark craned the LBB ring sandwich to the ceiling of the lower half of the tank, and set the heights of the jacks on the upper half.
- Fabian and Hirata-san finished the in-vacuum cabling.
- Enzo ran DC power to the second SRM stepper driver and did the rest of the in-air cabling.
- We're now ready for final tests of the SF/... items and initial tests of the PI items.
- Enzo and Fujii-kun built three geophones for SRM. They still need testing/characterization/sealing.
- Mark worked on the height budget.
- SR2
Enzo experimented with LISO (circuit analysis software which, among other functions, can fit measured TFs with a ZPK model) but then wrote his own fitting software in Python and used it to build Foton models of key TFs of the SR2. (These are in slots FM6-FM8 of the DAMP blocks and should not be accidentally enabled.)
To-Do Lists, Schedule
Plan for week of 11/19
- Friday 11/23 is Labor Thanksgiving Day.
- Mark, Enzo and Fabian at Kamioka Mon-Thu.
- Hirata-san at Kamioka Tue-Thu (Mitaka on Mon for Engineering Promotion Office meeting).
SRM
- Characterize geophones.
- Go/no-go test of all electronics items, especially SF/... section.
- Finish vertical height check and adjust SF trim mass as required.
- Unlock IP and center roughly.
- Check/adjust alignment of SS.
- Calibrate IP LVDTs.
- Add arc weights and geophones.
- Improve centering/tuning of IP and SS alignment.
- Disconnect cables at feedthroughs, lock suspension.
- Crane into tank.
SR2
- Assist MIF team with pico cables and LBB breadboard ballast.
- Install SR2 OL pillar and shelf (with AOL supervision)?
Plan for week of 11/26
- Move SRM in-air cables over to tank.
- Remove First Contact.
- Unlock and align SRM.
- Hook and roughly ballast LBB.
- Move furniture near SR racks to prepare for flooring repair (week of 12/10)
Plan for week of 12/3
- f2f Meeting at NAOJ - no Kamioka work.
Vacation/Event Info
- Hirata-san at Mitaka, Mon 11/19 (Engineering Promotion Office meeting).
Type-Bp (Shoda)
Past week report
Plan for coming weeks
OMMT & OSTM (Ohishi)
Past week report
Plan for coming weeks
VIS electronics (Tanaka)
Past week report
Plan for coming weeks
Other site works
Safety
- Incidents:
- Foreseen risks
- Type-A:
- Type-B:
Discussion
December VIS work and vacuum work
- 12/10-11: Break the vacuum. Need to monitor the IP drift (BS, ITMX, ETMX)
- 12/12-14: BS maintenance works
- 12/12-13: Y-front Type-A Yaw FR replacement
12/13: PR2 remove the broken IM OSEM cable -> repair
- 12/17 - : Lazer hazard starts
- 12/17: PR2 install a new cable
12/17-21: X-front Type-A Yaw FR replacement, X-end Type-A Yaw FR replacement & FR repair
- 12/24-28: Y-end Type-A Yaw FR replacement
- 12/17-21: SR Yaw FR installation
- 1/15 - : Center area, X-front and Y-end vacumm pumping. Need to monitor IP drift (BS, SR, ITMX, ETMY)
- 1/21 - : Y-end vacuum break. Y-front vacuum pumping. Need to monitor drift (ETMY, ITMY)
- 2/4 - : Y-end vacuum pumping. Need to monitor drift (ETMY)
Travel Plans
- Travel (Week of 11/19):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
- Travel (Week of 11/26):
- Takahashi:
- Okutomi:
- Sato:
- Lucia:
- Fabian:
- Mark:
- Hirata:
- Enzo:
- Shoda:
- Ohishi:
- Fujii:
- Tanioka:
- Tanaka:
- Kozu (ICRR):
- Arai (ICRR):
Next meeting
On 2018/11/30(Fri)