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Editor: OsamuMiyakawa
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Deletions are marked like this. Additions are marked like this.
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 * Attendance: Miyakawa, Aso, Izumi
  * eZuce: 		 * Attendance: Miyakawa, Aso, Yokozawa, Izumi, Akutsu
  * eZuce: Ushiba, Suzuki, Tomaru, Inoue, Shoda
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  * 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.		   * Tuning of ETMY is still going on. Currently RMS is ~10urad.
   * ETMY yaw motion is still large.
   * Length, Yaw, Translation (diagonal of L) of BF dampings are not easy.
   * Only Yaw seems to be damped, but combination of them is not going well.
  * Beam will be checked every night, specially after pump down yesterday.
   * IMMT1,2 shifted in pitch by ~200urad, in yaw by ~100urad.
 
Line 20: Line 21:
  * Beam will be checked every night.
   * CAL group also requires iMC in the night.		  * MIF: Izumi
  * LSC full model has been implemented in k1imc0.
  * CAL model is being tested on k1imc0.
   * Cal line will be produced in CAL model.
   * Invisible calibration line will be implemented in LSC model.
  * k1bs, k1imc will be connected by Dolphin. ETMs are connected to k1imc by RFM.
Line 23: Line 28:
  * 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.		  * CAL: Yamamoto, Yokozawa
  * Started using IMC as training of calibration.
   * Simple calibration will be implemented.
  * X end PD will be removed and Baffle PD will be located instead. Changing PD will be done in the week of 3/26.
   * BURNDY to D-SUB9pin transformer should be implemented.
  * T cam at Y end is now stopped. It will be fixed soon. T cam X end will start in the next week. Both front T cams are woking.
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  * Current temperature is 18K. Semi equilibrium point exist and it was fallen to the point a week before.   * Current temperature is 18K.
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  * One missing tool was found, it takes several days, but no delay at schedule.
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=== Feed back to BS for MICH ===
 * Experimental side: no matter.
 * Data analysis side:		  * Selection of full channel -> DGS Yamamoto
 * Selection of science channel -> Commissioning Izumi
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 * LSC model(Michimura, Izumi)
  * Full model will be implemented at k1imc.
  * CAL model location? at the same k1imc, or k1test with Dolphin connection.

 * Selection of storing DAQ channel -> DGS, before phase 1
  * Check the total amount.

 * Screens at control room -> who, when?		  * Screens at control room
  * Sensitivity.
  * PEM.
Line 63: Line 61:
 * Next meeting: 3/13  * Next meeting: 3/27

Minute of KAGRA commissioning meeting

  • Date: 2018/3/20 11AM~12PM
  • Attendance: Miyakawa, Aso, Yokozawa, Izumi, Akutsu
    • eZuce: Ushiba, Suzuki, Tomaru, Inoue, Shoda

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

  • Alignment, ETMY: Izumi
    • Tuning of ETMY is still going on. Currently RMS is ~10urad.
      • ETMY yaw motion is still large.
      • Length, Yaw, Translation (diagonal of L) of BF dampings are not easy.
      • Only Yaw seems to be damped, but combination of them is not going well.
    • Beam will be checked every night, specially after pump down yesterday.
      • IMMT1,2 shifted in pitch by ~200urad, in yaw by ~100urad.
  • MIF: Izumi
    • LSC full model has been implemented in k1imc0.
    • CAL model is being tested on k1imc0.
      • Cal line will be produced in CAL model.
      • Invisible calibration line will be implemented in LSC model.
    • k1bs, k1imc will be connected by Dolphin. ETMs are connected to k1imc by RFM.
  • CAL: Yamamoto, Yokozawa
    • Started using IMC as training of calibration.
      • Simple calibration will be implemented.
    • X end PD will be removed and Baffle PD will be located instead. Changing PD will be done in the week of 3/26.
      • BURNDY to D-SUB9pin transformer should be implemented.
    • T cam at Y end is now stopped. It will be fixed soon. T cam X end will start in the next week. Both front T cams are woking.
  • Cryo:
    • Current temperature is 18K.

2. Schedule of ETMX installtion

  • See the schedule at the commissioning top page.

3. Tasks or discussions

  • Selection of full channel -> DGS Yamamoto

  • Selection of science channel -> Commissioning Izumi

  • Screens at control room
    • Sensitivity.
    • PEM.
    • Needs laser safety information.

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

4. Phase2

Others

  • Frequency noise can be measured by middle lock. Large intensity noise can be a problem.
  • Next meeting: 3/27

KAGRA/Commissioning/Weekly/20180320/Minute (last edited 2018-03-20 11:55:44 by OsamuMiyakawa)