= Agenda/Minutes of the VIS Meeting on 2020/1/24 =
2020/1/24 14:00 - 15:00

[[https://zoom.us/j/203743987|Zoom Meeting]]

Participants: Takahashi, Sato, Hirata, Shode, Fabian, Tanaka, Lucia, Okutomi, Sato, Ishizaki

[[https://paper.dropbox.com/doc/VIS-Commissioning-Task-List--AlK26n6oP8QHU_XUQriwv2PvAg-RKcNXfMFrqOtTAPU48qQf|VIS Commissioning Task List]]

[[https://onedrive.live.com/view.aspx?resid=8E8081C20FE5EC3A!2278&ithint=file,xlsx&authkey=!AMFNtNa-Y6CVp94|Post-O3 task list]]

[[https://www.dropbox.com/s/e0inlp006spuj4m/Schedule%20after%20O3.pdf?dl=0|Schedule afetr O3]]

[[https://www.dropbox.com/s/9l1h0fw9kc1pzmm/Proocurement%202019FY.xlsx?dl=0|Procurement list in 2019FY]]

== Progress report ==
=== Type-A ===
==== Past week report ====
 * Payload damping filter modification (by M. Nakano and the Three CRY Musketeers, T. Ushiba, T. Yamada, T. Nishimoto)
  * ETMX: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12571|klog#12571]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12603|#12603]]
  * ITMY: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12572|klog#12572]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12590|#12590]], [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12599|#12599]],
  * ITMX: [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12574|klog#12574]]
 * Coil driver replacement (by T. Yamada, K. Okutomi)
  * The coil driver for ITMY TM actuators has been replaced to the high-power one.
  * Now all the Type-A TM actuators have high power driving.
 * GAS control status (by L. Trozzo, T. Yamamoto)
  * ITMX F2 GAS control got saturated due to temperature drift ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12611|klog#12611]])
  * The limit values for the DAMP and COILOUTF filters have been increased to 30000 counts.
   * Because we don't have to take care of the analog WD tripping in the coil drivers.

==== Plan for coming weeks ====
=== Type B ===
==== Past week report ====
 * Oplev cover design is ongoing: 2 for Type Bp, 2 for SR and 2 for BS.
 * I went to the tunnel to measure the cleanroom around SR2 chamber again. I measure position of the hand rail.

==== Plan for coming weeks ====
=== Type-Bp ===
==== Past week report ====
 * Working on modeling update to include the control system.

==== Plan for coming weeks ====
=== OMMT & OSTM ===
==== Past week report ====
 * Released the bellows springs in the OSTM suspension.
 * Recovered the cable for the OSEM in OMMT1.

==== Plan for coming weeks ====
=== VIS electronics ===
 * Sent the 4-ch WD for SR and ETMX.
==== Past week report ====
==== Plan for coming weeks ====
=== Other site works ===
=== Safety ===
 * Incidents:

== Discussion ==
 * Reconsideration on the replacement of PR2 and SR2 after O3 ([[https://www.dropbox.com/s/e0inlp006spuj4m/Schedule%20after%20O3.pdf?dl=0|Revised schedule]]).
  * Only one set of the mirror rehanging jig will be procured.
  * The parts for replaced mirror (wire breaker, magnet base, wire clamp) will be prepared as well. 

== Travel Plans ==
 * Travel (Week of 1/27):
  * Takahashi:
  * Sato:
  * Hirata:
  * Shoda:
  * Fujii:
  * Tanaka:

 * Travel (Week of 2/3):
  * Takahashi:
  * Sato:
  * Hirata:
  * Shoda:
  * Fujii:
  * Tanaka:

== Next meeting ==
On 2020/1/31(Fri)