2018/4/11(Wed.)
* Remote participants by eZuce: None
Report of work (*:responsible person)
- IFO: Enomoto, Nagano, Nagano
- RF signal was extracted from fringe of Michelson.
- Ratio of ETMY and ETMX is not so large, roughly 1:1.
- We need more damping for both ETMY and ETMX.
- 4 front gate valve will be open.
- Power of coil driver is too small at ETMX marionette damping. It will be exchanged to HPCD.
- Camera: Yokozawa
- Illuminator at X end chamber was installed.
- DAQ: Miyakawa, Yamamoto
- k1tw0 started writing minute raw data.
Work plan (*:responsible person)
- Camera: Inoue, Yokozawa
- We check that nothing blocks the beam between EXA and EXC.
- DAQ: *Miyakawa
- Preparation to move writing minute raw of k1fw1 to a new k1tw1.
Laser hazard
- [AM]
- IR: PSL, Yend 1F
- Green: off
- [PM]
- IR: PSL, Yend 1F
- Green: off
- [night]
- IR: Upstream SR2-3 line, Yend 1F
- Green: off
Weekly
- week of 4/9
- 4/11 12:30 at fan hut: Meeting before pump down 2
- Closing EXC
- Some controls for Michelson
- 4/13~ Pump down
- week of 4/16
- Michelson control
- Leak check
- week of 4/23
- Operation