Minute of KAGRA commissioning meeting
- Date: 2018/6/26 11AM~12PM
- Attendance: Miyakawa, Aso, Yokozawa, Ohishi, Kokeyama, Miyoki, Tahara, Enomoto, Stefan, Tomura, Ushiyama, Nakano
- eZuce: Ushiba, Izumi, Inoue, Yamamoto(Toyama), Suzuki, Hirose, Shoda
Laser
- Transmissivity of Faraday Isolator suddenly reduced 60% to 40%.
- Starding Fiber amp failed due to too low power at the sensor.
- We will use spare at Mio labs. We can use current low power laser, so schedule won't be changed so much.
IMMT
- Changed titanium screws.
- IMMT1 repare was done, with 1cm position accuracy.
- 1cm is not enough(Izumi).
- IMMT2 repare will be held 7/9~.
PMC
- Offset was implemented.
- Whitening will be implemented by daughter board.
- Needs gain at low frequency in digital loop.
Useful scripts for RT-models
Others
- Next meeting: 6/26.