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Size: 1554
Comment:
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← Revision 29 as of 2018-11-22 09:41:33 ⇥
Size: 2022
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 17: | Line 17: |
| X-end PCal | = X-end PCal = |
| Line 19: | Line 19: |
| * TxPD1 repairing (THS4631 seems broken) * Asked Bin-Hua to bring parts. * OFS2 closed loop functionality repairing (relay is suspected) * Asked Bin-Hua to bring parts. * Interlock equippement * 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. |
Urgent * Excitation port noise 2nd-urgent * Stray light * Tx PDs detect light even if the AOM input is almost 0. * Put dumpers ~11/3 first test to inject PCal laser to the X-end test mass * Rx module alignment * QPD alignment * OL/CL TF measurement * OFS board gain seems strange. Saturation around 13 dB. * Strange bump in AA/AI (~6 kHz) ~X-arm commissioning line injection |
| Line 33: | Line 39: |
| * Picomoter setting * Periscope install * Wall between duct and modules * Ordered. Will arrive Kamioka on 9/10. * Set duct and wall. * Green laser preparation * * OL/CL TF measurement |
* Preparation for X-arm commissioning calibration line injection * Guardian ~O3 |
| Line 44: | Line 47: |
| * VGA noise measurement * Excitation noise measurement * DGS part seems not noisy, but cause large noise when connected to the OFS. * Peak stability test * Shot noise * Offset input noise * Noise model * Unstable D-sub connection at Tx module * Some connectors are dead. * OFS upgrade * Operation tool preparation Bonus work * AOM current * Sometimes over 0.5 V ? * Take care about grounding Pre-categorization = Y-end PCal = * Periscope re-installation = Laser power calibration setting in Toyama Univ. = ~Y-arm commissioning * Prepare cross calibration setup and calibrate an integrating sphere |
Detailed task list of PCal is listed here.
X-end PCal
Urgent
- Excitation port noise
2nd-urgent
- Stray light
- Tx PDs detect light even if the AOM input is almost 0.
- Put dumpers
~11/3 first test to inject PCal laser to the X-end test mass
- Rx module alignment
- QPD alignment
- OL/CL TF measurement
- OFS board gain seems strange. Saturation around 13 dB.
- Strange bump in AA/AI (~6 kHz)
~X-arm commissioning line injection
- BPM test
- Preparation for X-arm commissioning calibration line injection
- Guardian
~O3
- RPN measurement
- Laser noise measurement
- Harmonics noise measurement
- VGA noise measurement
- Excitation noise measurement
- DGS part seems not noisy, but cause large noise when connected to the OFS.
- Peak stability test
- Shot noise
- Offset input noise
- Noise model
- Unstable D-sub connection at Tx module
- Some connectors are dead.
- OFS upgrade
- Operation tool preparation
Bonus work
- AOM current
- Sometimes over 0.5 V ?
- Take care about grounding
Pre-categorization
Y-end PCal
- Periscope re-installation
Laser power calibration setting in Toyama Univ.
~Y-arm commissioning
- Prepare cross calibration setup and calibrate an integrating sphere