| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8690
|
Fri Jun 7 23:44:54 2013 |
Koji | Update | General | Projector - lightbulb replaced | http://nodus.ligo.caltech.edu:8080/40m/7885 |
|
|
8691
|
Sat Jun 8 00:24:11 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching | [Annalisa, Nic]
After connecting the PD with the
reflection from the arm to the PDH |
|
|
8692
|
Mon Jun 10 21:39:26 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching |
Still no good locking! |
|
|
8693
|
Tue Jun 11 10:00:54 2013 |
nicolas | Update | Green Locking | Y arm locked with green but bad mode matching |
|
|
|
8695
|
Wed Jun 12 01:56:58 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching |
For the mode matching calculation
I was using the ETMY focal length that I |
|
|
8696
|
Wed Jun 12 22:48:10 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching | After restoring alignment I could see again
strong 00 flashes (about 250-300 counts on
ALS-TRY). So I locked the arm with IR and |
|
|
8697
|
Wed Jun 12 23:06:33 2013 |
Jenne | Update | Green Locking | Y arm locked with green but bad mode matching | Hmmm. You seem to be saying that more light
is reflected than is injected. Is this a
units problem? Or was some IR on the power |
|
|
8698
|
Thu Jun 13 00:35:23 2013 |
Manasa | Update | Green Locking | Y arm locked with green but bad mode matching | > Hmmm. You seem to be saying that more light
is reflected than is injected. Is this a
units problem? Or was some IR on the power |
|
|
8699
|
Thu Jun 13 10:57:36 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching | > > Hmmm. You seem to be saying that more
light is reflected than is injected. Is this
a units problem? Or was some IR on the power |
|
|
8700
|
Thu Jun 13 15:04:16 2013 |
Jenne | Update | LSC | New modeled sensing matrix | Using all of the latest parameters that
I can find, I have re-modeled the 40m sensing
matrix. Also, I have it output the |
|
|
8701
|
Thu Jun 13 16:01:48 2013 |
nicolas | Update | Green Locking | Y arm locked with green but bad mode matching |
|
|
|
8702
|
Thu Jun 13 16:13:08 2013 |
nicolas | Update | LSC | New modeled sensing matrix | I'd repeat the measurement for REFL11.
The PRC arrow has some big error bar on it,
and maybe the true error is even bigger. |
|
|
8704
|
Thu Jun 13 23:28:40 2013 |
Annalisa | Update | Green Locking | Y arm locked with green but bad mode matching |
|
|
|
8705
|
Fri Jun 14 00:32:43 2013 |
Jenne | Update | LSC | New modeled sensing matrix | I put in a new version of the modelled
plot. I figured out a different way
to keep things generic so the same script |
|
|
8706
|
Fri Jun 14 02:38:07 2013 |
rana | Update | LSC | New modeled sensing matrix | This is nice - how about figuring
out how to plot the measurement and model
on the same plot? I guess we need to figure |
|
|
8707
|
Fri Jun 14 03:10:40 2013 |
Jenne | Update | ASC | New POP path - PDs in place, need cabling | I have placed the lenses and the PDs in
their new positions on the POP path.
As Koji had pointed out to me in reply to |
|
|
8709
|
Fri Jun 14 17:15:45 2013 |
Manasa | Update | Green Locking | c1als model edited | I have edited the daq channels in c1als
model.
Added: DQ channels for the error |
|
|
8710
|
Fri Jun 14 17:54:11 2013 |
Jenne | Update | ASC | New POP path - cabling work |
|
|
|
8711
|
Mon Jun 17 16:34:15 2013 |
Jenne | Update | LSC | Sensing Matrix vs. Schnupp Asymmetry | I have made some plots of the sensing matrix
(PRCL / MICH amplitude ratio, and relative
angle) versus Schnupp asymmetry for all the |
10x |
|
8712
|
Mon Jun 17 17:51:43 2013 |
Jenne | Update | LSC | POP QPD cables laid | Power not on to the POP QPD yet though.
Also, still need to reconnect POPDC. |
|
|
8713
|
Mon Jun 17 21:10:25 2013 |
Jenne | Update | LSC | Sensing Matrix vs. Schnupp Asymmetry | The plots, with a log y axis
PRMI:
|
|
|
8714
|
Mon Jun 17 23:12:19 2013 |
Manasa | Update | Green Locking | can't get IR to resonate | What I did:
1. Followed the same procedure to
enable ALS (http://nodus.ligo.caltech.edu:8080/40m/8703) |
|
|
8715
|
Mon Jun 17 23:53:03 2013 |
Annalisa | Update | Green Locking | Y arm locked on green!! | Y
arm locked on green carrier in 00 mode!
It
locked at almost 280 cts, and the transmitted |
|
|
8716
|
Tue Jun 18 07:22:20 2013 |
Koji | Update | LSC | Sensing Matrix vs. Schnupp Asymmetry | Interesting.
What's the reason why the PRMI/MICH
ratio gets worse (larger) for 55MHz and 165MHz |
|
|
8718
|
Tue Jun 18 18:24:07 2013 |
Manasa | Update | IOO | MC WFS turned OFF | [Jenne, Jamie, Manasa]
Jamie was working on the MC guardian
today (I think he will elog about this soon). |
|
|
8719
|
Wed Jun 19 00:46:06 2013 |
Jenne | Update | SUS | save/restore alignment scripts now also work for TTs, fixed a bug | I have done a quick update of the IFO_ALIGN
screen's save and restore scripts, so that
we can now also save, restore, and view |
|
|
8720
|
Wed Jun 19 01:12:42 2013 |
Jenne | Update | ASC | model name ASS -> ASC ??? | I am proposing a model name change.
Currently, we have an "ASS" model,
but we do not have an "ASC" model. |
|
|
8721
|
Wed Jun 19 01:45:49 2013 |
Manasa | Update | Green Locking | Beat frequency sweep for 3FSR | Measurements:
1. Calibrating offset : |
|
|
8722
|
Wed Jun 19 02:46:19 2013 |
Jenne | Update | CDS | Connected ADC channels from IOO model to ASS model | Following Jamie's table in elog
8654, I have connected up the channels
0, 1 and 2 from ADC0 on the IOO computer |
|
|
8723
|
Wed Jun 19 04:56:07 2013 |
Koji | Update | ASC | model name ASS -> ASC ??? | Sounds good.
Or we just stuff any angle control
things in to Angular Stabilization System |
|
|
8724
|
Wed Jun 19 15:07:20 2013 |
rana | Update | IOO | WFS debugging | Trying to figure out what's wrong with
the MC WFS:
1) The symptom seems to be that the |
|
|
8727
|
Wed Jun 19 18:24:14 2013 |
Jenne | Update | CDS | Proto-ASC implemented in ASS model | I have implemented a proto-ASC in the ASS
model.
In an ASC block within the ASS model, |
|
|
8728
|
Wed Jun 19 22:02:03 2013 |
Jenne | Update | ASC | New POP path - ready to try | I put the POPDC cable back to the DC output
of the bias tee that is the first thing at
the LSC rack that the POP110 PD sees. |
|
|
8729
|
Wed Jun 19 22:38:15 2013 |
Jenne | Update | Computer Scripts / Programs | LSC normalization sqrt_mon channels added to conlog |
Something has happened that
all of the C1:LSC-dof_NORM_SQRT_ENABLEs are |
|
|
8730
|
Wed Jun 19 23:50:44 2013 |
Jenne | Update | LSC | PRCL locking again | This is a mid-evening update, so I don't
forget all the stuff I've already done.
Aligned PRMI, no nice flashes on |
|
|
8731
|
Thu Jun 20 01:13:18 2013 |
Jenne | Update | LSC | PRCL locking again - no ASC success | I didn't have any success with the ASC
tonight. I copied over the filters
that Koji had used in elog |
|
|
8732
|
Thu Jun 20 09:33:42 2013 |
Steve | Update | General | cleanup | Office work benches were cleaned up yesterday.
Anti-image filter boards were moved to north
wall of the control room. Koji's pd- electronics |
|
|
8733
|
Thu Jun 20 15:15:39 2013 |
rana | Update | IOO | WFS debugging | Tried a bunch of stuff, but eventually
just turned off the TRANS_QPD loops and loops
are stable. Needs more debugging. |
|
|
8735
|
Thu Jun 20 20:46:16 2013 |
gautam | Update | IOO | WFS debugging-QPD debugging |
I wanted to make sure that
the QPD map on the C1IOO_MC_TRANS_QPD.adl |
|
|
8736
|
Fri Jun 21 16:30:04 2013 |
Steve | Update | General | Capacitor Inventory | The 3 Panasonic Ceramic Kits Books, 1206
NPO, SMT are well stocked. The 4 th one needs
to be refilled at some values. |
|
|
8737
|
Mon Jun 24 11:51:23 2013 |
Jenne | Update | LSC | New modeled sensing matrix |
|
|
|
8739
|
Mon Jun 24 16:41:40 2013 |
Jenne | Update | CDS | Proto-ASC implemented in ASS model | I am working on making the Proto-ASC less
"proto". I have put IPC senders
in the LSC model to send the cavity trigger |
|
|
8740
|
Tue Jun 25 00:13:00 2013 |
Jenne | Update | CDS | Proto-ASC implemented in ASS model | I have finished my work on the LSC and
ASS models for now. The triggering is all
implemented, and should be ready to go. |
|
|
8741
|
Tue Jun 25 00:28:52 2013 |
rana, manasa | Update | LSC | Arm Cavity scan with X-ALS after ALS servo upgrade | [Rana, Manasa]
ALS noise suppressed to |
6x |
|
8742
|
Tue Jun 25 10:18:34 2013 |
Mystery Man | Update | LSC | Arm Cavity scan with X-ALS after ALS servo upgrade |
|
|
|
8743
|
Tue Jun 25 10:23:20 2013 |
Steve | Update | safety | surf safety training | Alex Cole and Craig Cahillane received
40m specific, basic safety training
last week. |
|
|
8744
|
Tue Jun 25 11:39:13 2013 |
Koji | Update | LSC | Arm Cavity scan with X-ALS after ALS servo upgrade | My understanding is that that number is
an in-loop evaluation of the loop so far
(as the first step of the loop evaluation). |
|
|
8745
|
Tue Jun 25 12:42:16 2013 |
gautam | Update | General | Serial-interface with Doubling Oven at Y end | Summary
I have been working on setting up
a serial-link with the temperature controller |
|
|
8747
|
Tue Jun 25 22:50:12 2013 |
rana | Update | SUS | SUS Screens generation problems? | |
|
|
8748
|
Tue Jun 25 22:57:01 2013 |
Charles | Update | ISS | Proposed ISS for CTN Experiment | Following Tara's noise
budget, I have developed the following
ISS, whose transfer function was computed |
|