KAGRA/Commissioning/DailyWork/2018-04-25

* Remote participants by eZuce: None

IFO: *Izumi, Enomoto, Nakano + many
- Michelson lock lasted ~40min with Guardian.
  - ETMX had some drift. It may cause lock down.
- Modulation frequency was not tuned yet to iMC length.
  - Measurement of AM conversion can know the matching of mod. freq. to iMC length.
- PR3: Oplev has glitch. The laser source of oplev may be a cause. Needs fiber cleaner to exchange the laser.
BS: *Eleonora, Izumi, Arai
- BS IM feed back was engaged.
  - Target crossover was originally 3Hz but actual crossover was limited up to ~0.1Hz, because 1.25Hz peak disturbed control.
- Gain of some loops of oplev servo changed stronger.
CAL: *Yamamoto, Enomoto, Izumi
- Optical measumremnt was measured.
- Sensitivity is shown in the control room, being calculated from H(t).
Injection: *Miyamoto, Yokozawa
Noise budget: *Michimura, Enomoto
IOO: *Kokeyama, Enomoto
- MCE trans was clipped. Output PSL was going down to bottom direction, and it was a cause of clipping. This clipping does not affect to IFO control.
ETMX: *Hasegawa, Nakano, Enomoto
- ETMX has some drift for 10-20urad.
ETMY: *Nakano, *Shishido, Ushiba, Miyamoto
- ETMY need L damping.
- Gardian was implemented.

BS: *Eleonora, Izumi, Arai
- Opleve loop gains will change stronger.
CAL: *Yamamoto, Enomoto, Izumi
- Cal signal will be injected.
IFO: *Izumi, Enomoto, Nakano + many
- Measurement without locking morning, measurement with locking in the afternoon.

KAGRA/Commissioning/DailyWork/2018-04-25 (last edited 2018-04-25 09:29:52 by OsamuMiyakawa)