2019/7/31(Wed.)
Schedule
- ~7/31: Trial for DRMI with polarization.
- 7/6~: Trial for mass lock
- ITMX
- ETMX
- ITMY
- ETMY
- Long term:
- 7/1-8/9: FPMI/DRFPMI commissioning
- 8/12-10/4: ASC
- 10/7-11/15: Post Commissioning
- 11/18-12/13: Noise hunting
Report of work
- Finesse of X arm became low to ~1000.
- Transmitted light was low.
- ETMX has frost again.
- We decided to turn off the cooler.
- ITMY motor was stuck actually. It reached to one direction of the limit of range. It was fixed.
- More continuous works are planed.
- Magnet was not off. Needs more investigation.
Work plan
- DGS maintenance for exchanging k1dc0, adding BIO cards to k1ioo1 for ALS control (Yamamoto, Oshino)
- VIS should go safe mode. (Fabian)
- DC power source will be exchanged at ALS0 and ALS1 rack. (Kamiizumi)
- AOS: Checking and exchanging laser for oplev, ETMY or PRM.
- Type B: Releasing FR for all suspensions after finishing maintenance or afternoon.
