Detailed task list of PCal is listed here.

X-end PCal

Urgent

• RxPD1 repairing
  • 2 ICs seems broken. ICs have arrived at Kamioka.
• OFS2 closed loop functionality repairing
  • Register is missing. To be delivered.
• Interlock repairing

2nd-urgent

• Laser remote control
  • Setup done. LAN cable should be replaced to shorter one.
• Stray light
  • Put dumpers

~10/20 first test to inject PCal laser to the X-end test mass

• Rx module alignment
• AOM response measurement
  • Check working point is consistent to that in KEK
• OL/CL TF measurement
• WSK measurement
  • Modification is required from LIGO's procedure.
  • Code for WSK measurement analysis
  • To be delivered on 9/19 or 20 to Toyama Univ.
  • May have to prepare voltage calibrator to calibrate readout by DGS.

~X-arm commissioning line injection

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

~O3

• RPN measurement
• Laser noise measurement
• Harmonics noise measurement
• VGA noise measurement
• Excitation noise measurement
• Peak stability test
• Shot noise
• Offset input noise
• Noise model
• 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.