PR2,3,BS,SRM,SR2,SR3 Cleaning(Aso-kun, Hirata-san)
PR2: Acceptable after FCing
PR3: Slight dots could not be removed by even pure water. We accepted this situation.
No cleaning for BS, SRM, SR2, SR3
- Did you eyeballs checks during the beam path check?
Suspension Condition of PR2, PR3, BS, SR3, SR2, SRM. (Takahashi-san, Ushiba-kun, Hirata-san)
- Mechanical Motion
- Smooth pico motion and its default position: skip
- Gaps between magnets and coils :skip
- Gaps between EQ stoppers and mirrors
- PR2: OK
(Recovery Work)https://klog.icrr.u-tokyo.ac.jp/osl/?r=28593
Position measurement of the traverse: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28637, 3mm +Y side adjustment was done.
- PR3: OK
(Recovery Work)https://klog.icrr.u-tokyo.ac.jp/osl/?r=28509
Position measurement of the traverse: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28718
SRMs: OK for wider space: total comments: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29612
- PR2: OK
- IP adjustment
- SRM: OK even after earthquakes.
- Temperature should be the same in the future.
- Electrical wirings
Coil resistances and inductances ->
BS : OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29088, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29014
- SRM:
- SR2:
- SR3:
- DAC noise
- SR2/3: done before Jan 1st 2024.
- OSEM conditions: Ratations were found so much. But they could be acceptable from the point t of view of signals.
RP2: OK: (Recovery Work)https://klog.icrr.u-tokyo.ac.jp/osl/?r=28593
RP3: OK: (Recovery Work)https://klog.icrr.u-tokyo.ac.jp/osl/?r=28509
BS : OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29156, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29379
SRM: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29317, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29323, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29594
SR2: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29315, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29322, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29595
SR3: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29316, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29321, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29596
- Smooth Mag-coil motion and balance and TFs
Spectrum ---> Should be taken.
PR2: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28674, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28768, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28770, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28774,
PR3: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28808, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29648,
BS: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28292, https://klog.icrr.u-tokyo.ac.jp/osl/?r=28352, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29432
SRM: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28373, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29584
SR2: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28369, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29498
SR3: OK: https://klog.icrr.u-tokyo.ac.jp/osl/?r=28368, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29199 (TF is OK, Blending problem happened on the peaks. Please write this contents in klog!)
Oplev Check for PR2,3,BS,SRM,SR2,SR3. (Yokozawa-kun)
Activities
All seem to be fine: BS, SR2, SR3, SRM: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29670
- Photos in PR2 and PR3 chambers will be taken.
Beam Power
Beam Path Clearance
- beam pathes were checked but it is difficult to take photos.
QPD centering
Calibration
Spectrum Health
Oplev beam's stray light influence
- almost no light?
Oplev table covering
- we will do this after closing.
Beam Path and Baffle Position
- IR
- Optical beam alignment from BS to SRM
- Mid baffles and stray light inspection around SR3, SR2, and SRM
- SR transmission (IR) will be checked.
- SRM front surface reflection could not be found.
- IR beam might be clipped at PR3 HR mid-baffle.
- GR
- GRX
for IFI-PRM: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29261
for IFI-PRM: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29282
- GRY
- GRX
- IR/GR arm alignment
Leaked hermetic flange repair on BS
Finished: https://klog.icrr.u-tokyo.ac.jp/osl/?r=29146, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29088, https://klog.icrr.u-tokyo.ac.jp/osl/?r=29146
Vacuum system (Kimura/Uchiyama and their selected persons)
Open the GV between SRM-SR3, and Close the GV between SRM-OMC !!
- tierod adjustment for the GV on the SRM side.
Clean inside as much as possible including the bellows duct with TMP
- PR3, PR3, BS :
- SR2, SR3, SRM : maybe impossible from the only side hatches.
Check the flange seal surface condition where were opened.
Decide where the elastomer/Metal gasket will be used.
Check the opened flanges and the top hut of PRM2, 3
Logistic to reinstall the bellows duct with TMP.
- Sawada-sana and Mirapro members call
- If you use chain block, please be careful of its fixing
- Careful cramp tightening near oplevs.