Differences between revisions 4 and 5
⇤ ← Revision 4 as of 2018-03-13 11:19:37 →
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Editor: OsamuMiyakawa
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← Revision 5 as of 2018-03-13 11:33:47 → ⇥
Size: 1941
Editor: OsamuMiyakawa
Comment:
Deletions are marked like this. Additions are marked like this.
Line 15: Line 15:
   * BF is also tuned.    * BF is also being tuned.
Line 24: Line 24:
  * One of the cables for picomotor was cut and broken between the connector and cable, probably due to the duct connection.
   *
  * One of the flat ribbon cables to picomotor was cut and broken between the connector and cable, probably due to the duct connection.
Line 29: Line 27:
  * X end PD will be removed. Baffle PD will be located instead. Changing PD will be done around 3/26.



 * Effect of Heat link to hardness of Yaw motion(Miyamoto, Ushiba)
   * X end PD was removed. Baffle PD will be located instead. Changing PD will be done around 3/26.
Line 37: Line 30:
  * Current temperature is ~40K. Speed of lowering temperature increased in these 3 days.   * Current temperature is 18K. Speed of lowering temperature increased in these 3 days.

Minute of KAGRA commissioning meeting

  • Date: 2018/3/13 11AM~12PM
  • Attendance: Miyakawa, Aso, Izumi, Ushiba, Yamamoto, Koseyama
    • eZuce: Hirose, Tomaru, Miyoki

1. Report of work of the last week and plan of work

  • Alignment, ETMY: Izumi
    • Tuning of ETMY is still going on. ETMY yaw motion is still too large.
      • Trying feedforward, but not so effective.
      • BF is also being tuned.
    • Alignment to REFL port was done.
      • Testing full LSC model started. It will be run at k1imc.
    • RT model seems to have additional time delay ~61usec to 200usec. Unknown.
    • Beam will be checked every night.
      • CAL group also requires iMC in the night.
    • Some of SUS, specially IMMT showed jumps several times, probably due to duct connection.
    • One of the flat ribbon cables to picomotor was cut and broken between the connector and cable, probably due to the duct connection.
  • CAL:
    • X end PD was removed. Baffle PD will be located instead. Changing PD will be done around 3/26.
  • Cryo:
    • Current temperature is 18K. Speed of lowering temperature increased in these 3 days.

2. Schedule of ETMX installtion

  • See schedule
    • Check list for ETMX, Center.
    • Improved point for EMTX should be shared to Vacuum team. It will be listed and shared.
      • Bug list is made by izumi-kun, it will be merged to above list.

3. Tasks or discussions

Feed back to BS for MICH

  • Experimental side:
  • Data analysis side:
  • LSC model(Michimura, Izumi)
    • Same as iKAGRA or full model?
    • CAL model location? which PC?

  • Selection of storing DAQ channel -> DGS, before phase 1

    • Check the total amount.

  • Screens at control room -> who, when?

    • Needs laser safety information.

  • GW alert: online alert in the control room might be prepared. -> Togoshi

4. Phase2

Others

  • Next meeting: 3/13

KAGRA/Commissioning/Weekly/20180313/Minute (last edited 2018-03-13 12:07:50 by OsamuMiyakawa)