2019/7/11(Thur.)
Schedule
- ~7/31: Trial for DRMI with polarization.
- 7/6~: Trial for mass lock
- ITMX
- ETMX
- ITMY
- 7/4: Turbo pump on
- ETMY
- 7/4: Turbo pump on
- Long term:
4/22-5/31: Yarm commissioning
5/27-6/30: DRMI commissioning
- 7/1-8/9: FPMI/DRFPMI commissioning
- 8/12-10/4: ASC
- 10/7-11/15: Post Commissioning
- 11/18-12/13: Noise hunting
Note
- Please reduce the number or speed of 16kHz channels.
- GV of BS side can be opened on 7/5, but still please do not oped are side.
Night work
Weekend
Report of work
- OMC: 700Hz oscillation comes from mechanical resonance of optical bread board. It was measured by accelerometer on the optical bread board.
- It could be acoustic coupling, so pumping down may fix something.
- OMC: Transmittance was 16% for input beam, 32% for TEM00, with sort of good alignment. Loss is 1% order inside.
- Next week we may pull OMC.
- COM: DC output of ASC PD had something wrong, and it was fixed on RT model.
- VAC: GV were opened. Y arm can be tried tonight.
Type A was a lot better last night. Damping filter was modified at ETMY, <1urad.
- Type B: SR3 has some big motion on yaw at 40mHz by ~6urad pp.
- 5pm on Tuesday, PEM has a meeting with some interesting results.
- DGS, AEL: SRM and SR3 18V was exchanged to the power supply from the computer room.
- CAL: IMC whitening filter was engaged, but noise did not change.
Work plan
- MICH whitening fiter will be implemented soon for the engineering run this weekend.