= ISC Meeting on 2016/1/12 =
14:00 - 15:00 on SeeVogh

Participants: Michimura, H. Yamamoto, K. Arai, Aso, Akutsu

 1. Electronics Preparation Status (Michimura, Aso)

  * RFPD/QPD (Aso, Doi): Waiting for delivery
  * RF Distribution Amp assembled by Nakano on Dec 16, 2015
   * http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=4744
  * All the iKAGRA ISC chassis (minimum set) are assembled

 1. iKAGRA electronics tasklist
 *  RF PD
  * assembly (Aso, Doi)
  * test, tune resonances (?)

 
 * Cable assembly
  * RF low loss cables with N connectors
   * For short (less than 10m) cables, will not use the semi-rigid low-loss cables. Ask a company to make a bunch of flexible coaxial cables with N connectors (and some long SMA cables).
  * Diff-to-single cables: Only 2 of them are needed. Make them as a part of installation work.
  * we have purchased all the other ISC cables

 * Cabling
  * IMC ASC related (Nakano, U-Toyama students?)
  * REFL related (Michimura, Ando-lab students)
  * IMMT1T(RFPD,DCQPDx2) related (Michimura, Ando-lab students)
  * We have decided not to use IMMT2T in the IOO meeting

 * Magnet noise
  * SmCo 2mm dia, 3mm thick for BS TM is OK
  * magnetic noise from TM: ~1/18 of the displacement noise requirement at 10 Hz
  * DAC output at lock acquisition for TM: ~630 counts
  * SmCo 10mm dia, 10mm thick for BS IM (no change in size)
  * Magnetic noise from IM: ~1/20 of the displacement noise requirement at 10Hz
  * DAC output during lock for IM: ~3425 counts RMS

  * See JGW-T1504450 for the summary of the discussion (includes the discussion for SRs and PRs)
   * http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4450

 1. FFT simulation (H. Yamamoto, Hirose)
  * Need transmission data of ETM. What is the status of delivery ?
  * H. Yamamoto will prepare the simulation code so that once the data is available, we can quickly check the requirements on the ITM polishing.

 1. Initial Alignment of iKAGRA.
  * How to send the beam to the end at 3km away ?
   * Automatically scan the beam direction using PR3 (for X arm) and check for flashes on the ETM suspension using a video camera.
   * Automation of the above process is an interesting project for students

 1. Next meting 2016/1/25