40m
QIL
Cryo_Lab
CTN
SUS_Lab
TCS_Lab
OMC_Lab
CRIME_Lab
FEA
ENG_Labs
OptContFac
Mariner
WBEEShop
|
40m Log |
Not logged in |
 |
|
Tue Oct 8 18:35:09 2019, gautam, Update, LSC, Locking prep
|
Wed Oct 9 18:15:26 2019, gautam, Update, LSC, PRMI 3f locking
|
Wed Oct 9 22:02:58 2019, gautam, Update, LSC, REFL55 whitening issue
|
Thu Oct 10 01:12:56 2019, gautam, Update, LSC, Locking studies
|
Wed Oct 16 11:42:17 2019, gautam, Update, LSC, Poor separation of PRCL/MICH in 3f signals
|
Thu Oct 17 11:19:28 2019, gautam, Update, LSC, Locking activity last night 
|
Tue Oct 22 00:52:27 2019, gautam, Update, LSC, Locking updates
|
Tue Oct 29 01:24:45 2019, gautam, Update, LSC, More locking updates 
|
Tue Oct 29 15:13:19 2019, gautam, Update, LSC, More locking updates
|
Wed Oct 30 01:27:00 2019, gautam, Update, LSC, More locking updates
|
Wed Oct 30 11:53:41 2019, gautam, Update, LSC, MICH loop shape tuning 
|
Wed Oct 30 17:08:40 2019, gautam, Update, LSC, POP22 investigation
|
Mon Nov 4 15:29:47 2019, gautam, Update, LSC, POP signal path
|
Mon Nov 4 16:06:58 2019, gautam, Update, LSC, POP optical path    
|
Tue Nov 5 11:52:27 2019, gautam, Update, LSC, Locking notes
|
Wed Nov 6 02:08:48 2019, gautam, Update, LSC, Locking updates
|
Wed Nov 6 17:05:45 2019, gautam, Update, LSC, CARM calibration  
|
Wed Nov 6 17:45:34 2019, gautam, Update, LSC, ~
|
Mon Nov 18 21:04:38 2019, gautam, Update, LSC, Locking - some ideas
|
Wed Nov 20 01:07:18 2019, gautam, Update, LSC, Locking - progress
|
Wed Nov 20 12:14:17 2019, gautam, Update, LSC, Locking - progress
|
Wed Nov 20 17:20:24 2019, Yehonathan, Update, LSC, QPD Investigation
|
Wed Nov 20 17:52:00 2019, gautam, Update, LSC, QPD MEDM screen update  
|
Wed Nov 20 21:29:28 2019, gautam, Update, LSC, PRG ~13
|
Fri Nov 22 00:54:14 2019, gautam, Update, LSC, locking notes
|
Mon Nov 25 19:11:22 2019, gautam, Update, LSC, ALS noise re-look
|
Wed Nov 27 23:24:01 2019, gautam, Update, LSC, No shaking but no inspiration either
|
Sun Dec 1 13:38:48 2019, rana, Update, LSC, No shaking but no inspiration either
|
Tue Dec 3 00:03:57 2019, gautam, Update, LSC, Green ALS also shows elevated noise with high arm buildup
|
Wed Dec 4 19:54:27 2019, gautam, Update, LSC, A look to the past
|
Thu Dec 5 01:54:39 2019, gautam, Update, LSC, Partial CM board path engaged
|
Fri Dec 6 00:02:48 2019, gautam, Update, LSC, What is the correct way to set the 3f offsets?
|
Fri Nov 15 12:08:04 2019, gautam, Update, LSC, POPDC whitening board
|
Tue Oct 29 17:40:48 2019, gautam, Update, LSC, More locking updates 
|
|
Message ID: 14954
Entry time: Tue Oct 8 18:35:09 2019
Reply to this: 14960
|
Author: |
gautam |
Type: |
Update |
Category: |
LSC |
Subject: |
Locking prep |
|
|
In preparation for some locking work tonight, I did the following at the POP in air table with the PRMI locked on carrier:
- Raised the POP camera by ~5mm. The POP spot is now well centered on the CCD view.
- Tweaked alignment onto the PDA10CF photodiode that serves as (i) POP22, (ii) POP110, and (iii) POP DC. In lock the POPDC level went from ~800 cts to ~1200 cts.
- Moved the QPD that witnesses part of the POP beam such that the spot was centered on the photodiode. This may be useful for collecting some FF data or if we want to try feedback to stabilize the PRMI.
TBC... |