X-end PCal

Urgent

TxPD1 repairing
- Repaired. To be checked.
OFS2 closed loop functionality repairing
- Relay is OK. Investigating the cause.
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
- Setup done. LAN cable should be replaced to shorter one.
Stray light
- Put dumpers
  - Borrowing 2 from Toyama univ. They has to be returned on 9/19 or 20.

~9/11

Periscope install
- Equip picomoters to the mirror

~10/3

Complete periscope install
Rx module alignment

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

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.

-  ⇤ ← Revision 10 as of 2018-09-06 11:54:50 → 
  Size: 2880
  Editor: chihiro.kozakai
  Comment:
+   ← Revision 16 as of 2018-09-20 16:16:16 → ⇥
  Size: 2612
  Editor: chihiro.kozakai
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 19:
+Urgent
-Line 20:
+Line 22:
-  * THS4631 seems broken
  * Asked Bin-Hua to bring parts.
+  * Repaired. To be checked.
-Line 23:
+Line 24:
-  * 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.
 * Check DAC input between MEDM and actual
 * Unstable D-sub connection at Tx module
  * Some connectors are dead. 
 * Cable arrangement
+  * Relay is OK. Investigating the cause.
 * 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
-Line 33:
+Line 32:
-  * 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 ?
+  * Setup done. LAN cable should be replaced to shorter one.
-Line 53:
+Line 36:
- * 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
+~9/11

 * Periscope install
  * Equip picomoters to the mirror

~10/3
 * Complete periscope install 
 * Rx module alignment

~10/20 first test to inject PCal laser to the X-end test mass
-Line 65:
+Line 51:
+ * 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
 Line 74:
+ * Unstable D-sub connection at Tx module
  * Some connectors are dead. 
 * Cable arrangement
-Line 75:
+Line 79:
- * Preparation for X-arm commissioning calibration line injection
+ * Operation tool preparation
-Line 77:
+Line 81:
+Bonus work

 * AOM current
  * Sometimes over 0.5 V ? 
 * Take care about grounding
-Line 78:
+Line 87:
- * Operation tool preparation
+Pre-categorization