= Minute of KAGRA commissioning meeting =
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 * Date: 2018/7/24 11AM~12PM
 * Attendance: Miyakawa, Aso, Enomoto, Yokozawa, Kozakai
  * eZuce: Miyoki, Suzuki, Nakano, Shoda, Ushiba, Yamamoto, Kimura, Uchiyama
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== LAS (Nakano) ==
 * 40W laser started working on last Friday.
  * Limite 1W will be used to alignment or so.
 * Remote desktop will be installed on Windows PC for 40W laser control.
 * Monitor of laser power should be displayed on door or something. 

== PSL, IOO ==
 * MZ of single arm mode matching is much better now. No Lager-Gaussian is seen.
  * MZ contrast is 99.4% and 96.9%. Second one has 3m arm length difference.
  * Lock wil be tried soon. Common mode servo will be used to control MZ.
 * RAM(residual amplitude monitor) monitor will be installed. 
 * ISS TF model and measurement were done. Model still does not have phase delay at high frequency.
 * RIN is limited by PD dark noise up to 1kHz. Shotnoise is almost comparable.
  * UGF is currently 10kHz. Above 1kHz, suppression is not enough. It will be limited to 50kHz max in future by a commercial AOM driver of speed of variable attenuator..


== Check list for IXC ==
 
 * Meeting will be assigned on one of 8/15,16,17. 
 * WAB, NAB are the additional items.
 * Mirror position should be in the item list.
 * WAB PD will be installed at the sometime.
 * The number of opening flange should be minimized. It must be listed up.
 * Oplev of ITMX will be installed.
 * Safety for high power laser must be considered.


== ETMX (Miyamoto) ==

 * Oplev power goes down with switch of cryostat.
 * Also ETMX QPD shows 1/10 or lower power in 10 hour without relationship of switch of cryostat. One of the viewport looks dewed.
 * One of the motor seemed to be stuck.
 * F2 of ETMX fell bistable point, and it is stuck.

== DGS ==


== rack cleaning ==
 * BS is almost done.
 * PEM meeting will be held on 8/1 6pm. 


== Others ==
 
 * Next meeting: 8/7.