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=X-end PCal= = X-end PCal =

Detailed task list of PCal is listed here.

X-end PCal

  • TxPD1 repairing
    • THS4631 seems broken
    • Asked Bin-Hua to bring parts.
  • OFS2 closed loop functionality repairing
    • 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.
  • Unstable D-sub connection at Tx module
    • Some connectors are dead.
  • Cable arrangement
  • Laser remote control
    • PC will be setup.
    • Same script as in Y-end may be applicable.
  • BPM test
    • Picomoter setting
  • Periscope install
    • Equip picomoters to the mirror
    • Wall between duct and modules
      • Ordered. Will arrive Kamioka on 9/10.
    • Set duct and wall.
    • Green laser preparation
      • Power supplies are OK.
      • Waiting for new post.
    • Rx module alignment
    • TCam has to come back.
      • PC has to be re-installed.
  • AOM current
    • Sometimes over 0.5 V ?
  • 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.
  • DAC noise problem
    • With DAC cable, very large noise and offset are observed. It may be difficult to set working point.
  • Take care about grounding
  • OL/CL TF measurement
  • RPN measurement
  • Laser noise measurement
  • Harmonics noise measurement
  • VGA noise measurement
  • Excitation noise measurement
  • Noise model
  • OFS upgrade

=Laser power calibration setting in Toyama Univ.=

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