Differences between revisions 12 and 13
Revision 12 as of 2018-09-06 12:09:46
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Revision 13 as of 2018-09-09 21:24:45
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Deletions are marked like this. Additions are marked like this.
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  * Asked Bin-Hua to bring parts.   * Ordering parts.
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  * Relay is suspected. Will confirm using tester.
  * Asked Bin-Hua to bring parts.
 * Interlock equipment
  * Switch is equipped to modules.
  * Connector between chassis and laser system is repaired.
  * Relay is OK. Investigating the cause.
  * Asked Bin-Hua to bring relay.
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 * Check DAC input between MEDM and actual  * DAC input bias between MEDM and actual
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   * Ordered. Will arrive Kamioka on 9/10.    * Ordered. Will arrive Kamioka on 9/11.
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   * Waiting for new post.    * New post arrived. To be set.
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Detailed task list of PCal is listed here.

X-end PCal

Urgent

  • TxPD1 repairing
    • THS4631 seems broken
    • Ordering parts.
  • OFS2 closed loop functionality repairing
    • Relay is OK. Investigating the cause.
    • Asked Bin-Hua to bring relay.
  • DAC noise problem
    • With DAC cable, very large noise and offset are observed. It may be difficult to set working point.

2nd-urgent

  • DAC input bias between MEDM and actual
  • Laser remote control
    • PC will be setup.
    • Same script as in Y-end may be applicable.
  • Stray light
    • Put dumpers
      • Borrowing 2 from Toyama univ. They has to be returned on 9/19 or 20.
  • WSK measurement
    • Alignment of the last 2 mirrors (Accidentally moved)
    • Modification is required from LIGO's procedure.
    • Code for WSK measurement analysis
    • To be delivered on 9/19 or 20.
    • May have to prepare voltage calibrator to calibrate readout by DGS.

~9/11

  • Periscope install
    • Equip picomoters to the mirror
    • Wall between duct and modules
      • Ordered. Will arrive Kamioka on 9/11.
    • Set duct and wall.
    • Green laser preparation
      • Power supplies are OK.
      • New post arrived. To be set.
    • TCam has to come back.
      • PC has to be re-installed.

~JPS meeting 9/14

  • AOM response measurement
    • Check working point is consistent to that in KEK
  • OL/CL TF measurement
  • RPN measurement
  • Laser noise measurement
  • Harmonics noise measurement
  • VGA noise measurement
  • Excitation noise measurement
  • Peak stability test
  • Shot noise
  • Offset input noise
  • Noise model

~9/28

  • Complete periscope install
  • Rx module alignment

~X-arm commissioning line injection

  • BPM test
    • Picomoter setting
  • Preparation for X-arm commissioning calibration line injection

~O3

  • Unstable D-sub connection at Tx module
    • Some connectors are dead.
  • Cable arrangement
  • OFS upgrade
  • Operation tool preparation

Bonus work

  • AOM current
    • Sometimes over 0.5 V ?
  • Take care about grounding
  • Initial laser power just after turned on seems too small ?

Pre-categorization

Y-end PCal

Laser power calibration setting in Toyama Univ.

PcalTask (last edited 2018-11-22 09:41:33 by chihiro.kozakai)