=== 2018/4/26(Thur.) ===

* Remote participants by eZuce: None

==== Report of work (*:responsible person) ====

 * IFO: *Izumi, Enomoto + many
  * Michelson gardian was implemented. Lock is identified by the REFL and a tripped state of BS.
  * Lock lasts typically several of 10 minutes.
  * PR2 had a jump caused by a DAC glitch once a day. Sampling rate will be lowered?
  * PR3 also had jumps caused by DAC glitches.
  * Whitening filter was implemented at demodulated signal of RFPD. Sensitivity will be improved.
  * Modulation frequency was tuned to iMC length. Optical gain increased 1.4 times.

==== Work plan (*:responsible person) ====

 * IFO: *Izumi, Enomoto, Nakano + many
  * Measurement without locking morning, measurement with locking in the afternoon.


==== Laser hazard ====
 * [AM]
  * IR: Upstream SR2-3 line, Xend 1F, Yend 1F
  * Green: PR2, Xend 1F
 * [PM]
  * IR: Upstream SR2-3 line, Xend 1F, Yend 1F
  * Green: PR2, Xend 1F

 * [night]
  * IR: Upstream SR2-3 line, Xend 1F, Yend 1F
  * Green: PR2, Xend 1F


==== Weekly ====

 * week of 4/23
  * Michelson control.
  * 4/28 Operation start

==== Issues ====

  * PR2 had a jump caused by a DAC glitch once a day. Sampling rate will be lowered?
  * PR3 also had jumps caused by DAC glitches.