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Revision 4 as of 2018-07-24 10:56:49
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Revision 5 as of 2018-07-24 11:25:26
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 * Attendance: Miyakawa, Izumi,
  * eZuce:
 * Attendance: Miyakawa, Izumi, Ohishi
  * eZuce: Yamamoto, Nakano, Shoda, Suzuki
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Line 11: Line 10:
 * EOM and FI are being tested.
  * EOM: TF and modulation index were measured.
 * Fiber isolate reached and is being tested.
 * Installation to KAGRA started.
Line 14: Line 17:
 * MZ alignment is being proceeded, and MC has been already locked with single arm of MZ.
 * Mode matching ratio is still bad but it will be fixed soon.

== ISS ==
 * ISS loop locked again. OLG or RIM was measured, and they are being analyzed.


Line 15: Line 26:

 * On 7/9, we started take IMMT out from the chamber.
 * All the replacement of magnetized screws is done by the end of last week.
 * Mirror position (distance between mirror and coile) was shifted a ~mm, probably caused by tilt of optical.
 * TF will be measured soon.
Line 21: Line 37:

 * To fix BS GeoPhone, we should open the chamber.
 * TMS GeoPhone looks fine, but some strange coupling can be seen.
  *

Minute of KAGRA commissioning meeting


  • Date: 2018/7/24 11AM~12PM
  • Attendance: Miyakawa, Izumi, Ohishi
    • eZuce: Yamamoto, Nakano, Shoda, Suzuki


LAS (Nakano)

  • EOM and FI are being tested.
    • EOM: TF and modulation index were measured.
  • Fiber isolate reached and is being tested.
  • Installation to KAGRA started.

PSL, IOO

  • MZ alignment is being proceeded, and MC has been already locked with single arm of MZ.
  • Mode matching ratio is still bad but it will be fixed soon.

ISS

  • ISS loop locked again. OLG or RIM was measured, and they are being analyzed.

IMMT2 (Ohishi)

  • On 7/9, we started take IMMT out from the chamber.
  • All the replacement of magnetized screws is done by the end of last week.
  • Mirror position (distance between mirror and coile) was shifted a ~mm, probably caused by tilt of optical.
  • TF will be measured soon.

ACC noise

ETMX (Miyamoto)

Geophone

  • To fix BS GeoPhone, we should open the chamber.

  • TMS GeoPhone looks fine, but some strange coupling can be seen.

DGS

  • DAC is almost out of stock. We should think to start using old DAC used in CLIO.

rack cleaning

Others

  • Next meeting: 7/31.

KAGRA/Commissioning/Weekly/20180724/Minute (last edited 2018-07-24 11:38:44 by OsamuMiyakawa)