| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4941
|
Tue Jul 5 18:57:10 2011 |
Jamie | Update | SUS | More normalization of all sus controllers | Based on Rana's
comment I have gone through and moved
all of the corner frequencies for the high |
|
|
4940
|
Tue Jul 5 17:38:46 2011 |
kiwamu | Update | ABSL | ABSL laser frequency-locked | In this
past weekend the ABSL laser was successfully |
|
|
4939
|
Tue Jul 5 16:09:54 2011 |
kiwamu | Update | ABSL | some photos for ABSL setup | Here
I show two photos of the latest ABSL (ABSolute
Length measurement) setup. |
|
|
4938
|
Tue Jul 5 13:35:56 2011 |
steve | Update | SUS | PRM damping restored | The PRM sus damping was restored. It's
side rms motion came down from 35 to 4 mV
immediately. |
|
|
4937
|
Tue Jul 5 08:32:38 2011 |
steve | Update | PEM | bad air quality in the lab | The fireworks of yesterday showing up in
the lab. Pasadena out side air 6.6 million
cfm for 0.3 micron particles and 1.5 |
|
|
4936
|
Mon Jul 4 14:27:35 2011 |
kiwamu | Summary | General | Weekly report | Summary
of the week ending July 3rd. |
|
|
4935
|
Sun Jul 3 21:18:06 2011 |
rana | Update | Computer Scripts / Programs | statScreen scripts dead since Feb 4 / now revived | This
CSHRC mangling on Feb 4 did more than
re-arrange FB binaries. |
|
|
4934
|
Fri Jul 1 20:26:29 2011 |
rana | Summary | SUS | All SUS Peaks have been fit |
MC1 MC2
MC3 ETMX ETMY |
|
|
4933
|
Fri Jul 1 20:22:24 2011 |
rana | Update | SUS | ETMY sus controller found to be in a bad state | Actually, ETMY was the only good one. They
should all have the 30 Hz High pass as the
damping filter. I think these details are |
|
|
4932
|
Fri Jul 1 18:54:34 2011 |
Jamie | Update | SUS | ETMY binary whitening switching confirmed to be fixed | After finally figuring out what was messed
up with ETMY I was able to get good measurements |
|
|
4931
|
Fri Jul 1 18:48:13 2011 |
Jamie | Update | SUS | ETMY sus controller found to be in a bad state | I'm not sure what happened to ETMY SUS,
but it was in a pretty bad state. Bad
burt restore, I would guess. |
|
|
4930
|
Fri Jul 1 18:41:53 2011 |
Jamie | Update | SUS | Core optic sus damping controllers normalized | I found many of the core optic (ETMs, ITMs,
BS, PRM, SRM) suspension DOF damping controllers
(SUSPOS, SUSPIT, SUSYAW, SUSSIDE) to be in |
|
|
4929
|
Fri Jul 1 16:01:48 2011 |
Jamie | Update | SUS | ETM binary whitening switching fixed | I have fixed the binary whitening switching
for the ETMs (ETMX and ETMY). See below
for a description of what some of the issues |
|
|
4928
|
Fri Jul 1 11:47:25 2011 |
rana | Update | IOO | WFS2 resonances and installation | What is implicit
in Suresh's entry is that we decided to run |
|
|
4927
|
Fri Jul 1 07:01:23 2011 |
Suresh | Update | IOO | WFS2 resonances and installation | This was the WFS whose photodiode was repaced
as the old one was found to be damaged.
I retuned the resonances and the |
|
|
4926
|
Thu Jun 30 21:55:16 2011 |
rana | Configuration | DAQ | NDS2 conf change | As I recently had trouble getting all of
the SUS SENSOR channels at once from NDS2,
I asked J.Z. for help. He found that the |
|
|
4925
|
Thu Jun 30 21:00:20 2011 |
kiwamu | Update | ABSL | fine alignment done | (Just a quick report)
The
fine alignment of the ABSL laser injection |
|
|
4924
|
Thu Jun 30 17:24:46 2011 |
steve | Update | SAFETY | safety interlocks | Lightwave M126-1064-700 lasers sn415
at east end of the Y arm and sn201
at the AP table are connected individually |
|
|
4923
|
Thu Jun 30 14:11:55 2011 |
kiwamu | Update | ABSL | a photo of ABSL setup on the AP table | Here
is a picture of the latest ABSL setup at
the east part of the AP table. |
|
|
4922
|
Thu Jun 30 11:40:21 2011 |
Jamie | Update | IOO | Re: misc. MC work |
|
|
|
4921
|
Thu Jun 30 11:36:54 2011 |
Jamie | Update | SUS | Re: ITMX whitening, ETMX left free swinging |
|
|
|
4920
|
Thu Jun 30 08:18:08 2011 |
Suresh | Update | IOO | The resonances and notches on WFS1 have been tuned. | As noted before the resonances had
to be tuned to the 29.5 MHz ( or rather 29.485
MHz to match with the Wenzel) and notches |
|
|
4919
|
Thu Jun 30 07:42:48 2011 |
Suresh | Update | IOO | AP Table Power levels | I measured the power in various beams on
the AP table to check and see if any beam
is having too much power. |
|
|
4918
|
Thu Jun 30 06:54:07 2011 |
josephb | Update | CDS | Modified the automated scripts for producing model webviews | Dave Barker pointed out last week that
the webview of our simulink model files,
generated from the installed models (i.e. |
|
|
4917
|
Thu Jun 30 03:26:40 2011 |
kiwamu | Update | ABSL | status update | Status
update of the absolute length (ABSL) measurement: |
|
|
4916
|
Thu Jun 30 01:50:02 2011 |
Jenne | Update | SUS | ITMX whitening, ETMX left free swinging | While closing up the whitening shop for
the night, I noticed that the ITMX whitening
state (Whitening "On") is opposite |
|
|
4915
|
Thu Jun 30 00:58:19 2011 |
Koji | Summary | LSC | LSC whitening filter test | [Jenne, Koji]
We have tested the LSC whitening
filters. In summary, they show the transfer |
|
|
4914
|
Wed Jun 29 22:50:02 2011 |
rana | Update | IOO | misc. MC work | Today
I wanted to investigate the MC Length path |
|
|
4913
|
Wed Jun 29 22:35:06 2011 |
Nicole | Summary | SUS | Completed Quad photodiode Box Circuit Diagrams | I have finished
drawing the circ |
|
|
4912
|
Wed Jun 29 14:43:12 2011 |
Koji | Update | LSC | LSC model updated | LSC model has been updated and running,
- Now the power and signal recycling
cavity lengths are named "PRCL" |
|
|
4911
|
Wed Jun 29 13:56:42 2011 |
kiwamu | Update | General | minutes of 40m meeting | |
|
|
4910
|
Wed Jun 29 12:20:53 2011 |
kiwamu | Update | LSC | sensing matrix measurement in PRMI configuration | Of course
I made a mistake in my calculation of the |
|
|
4909
|
Wed Jun 29 11:45:54 2011 |
steve | Update | General | where are we storing PDs ? | Photo diodes stored in the east arm cabinet
E4: ALL PDs meet here, fast
or slow...... |
|
|
4908
|
Wed Jun 29 11:25:07 2011 |
Nicole | Summary | SUS | Weekly Summary of Work | Update of Week
3 Work: |
|
|
4907
|
Wed Jun 29 11:13:13 2011 |
Jenne | Update | SUS | issues in the current quad maglev system |
|
|
|
4906
|
Wed Jun 29 01:23:21 2011 |
haixing | Update | SUS | issues in the current quad maglev system | Here I show several issues that we have
encountered in the quad magnetic levitation
system. It would be great if you can give |
|
|
4905
|
Wed Jun 29 00:35:36 2011 |
Koji | Update | LSC | new LSC overview screen 80% done | New
LSC screen is 80% completed.
It is now accessible from the LSC |
|
|
4904
|
Tue Jun 28 22:36:04 2011 |
Jamie | Update | SUS | Checking binary switching of SUS whitening filter | I have been checking the binary output
switching for the SUS whitening filters.
It appears that the whitening switching is |
|
|
4903
|
Tue Jun 28 22:07:46 2011 |
Jamie | HowTo | SAFETY | Eurocrate extender card fried (ie. Jamie did a very bad thing) | IMPORTANT ELECTRONICS SAFETY
LESSON TO FOLLOW
Yesterday, |
|
|
4902
|
Tue Jun 28 21:05:05 2011 |
Jamie | Update | SUS | SUS control model updated | I have updated the sus_single_control model,
adjusting/cleaning up/simplifying the LSC/POS
input signals, and routing new signals to |
|
|
4901
|
Tue Jun 28 16:52:37 2011 |
Sonali | Update | Green Locking | Routing of fibre to PSL complete. | 1. Suresh and I completed the alignment
of the fibre and the three mirrors on the
ETMY table. |
|
|
4900
|
Tue Jun 28 15:23:21 2011 |
steve | Update | Electronics | Coilcraft RF-design kits are restocked | Our design kits are full again. They are
waiting for a new brilliant PD design. |
|
|
4899
|
Tue Jun 28 15:20:08 2011 |
kiwamu | Update | LSC | sensing matrix measurement in PRMI configuration | Here is
the result of the measurement of the sensing |
|
|
4898
|
Tue Jun 28 14:21:41 2011 |
kiwamu | Update | IOO | something wrong ? : Power incident on REFL11 and REFL55 | The measured
change in the REFL DC power with and without |
|
|
4897
|
Tue Jun 28 11:25:56 2011 |
Alastair | Bureaucracy | Computers | restarted elog | The manual instructions on the 40m wiki
for restarting wouldn't work. I killed
the process okay, but then I got an error |
|
|
4896
|
Tue Jun 28 10:11:13 2011 |
steve | Update | IOO | Power incident on REFL11 and REFL55 |
|
|
|
4895
|
Tue Jun 28 09:50:03 2011 |
Suresh | Update | IOO | WFS2 RF response | The WFS2 Transimpedance has been
measured to determine if it also suffers
from the same 200MHz oscillations seen in |
|
|
4894
|
Tue Jun 28 07:46:54 2011 |
Suresh | Update | IOO | Power incident on REFL11 and REFL55 | I measured the power incident on REFL11
and REFL55. Steve was concerned that
it is too high. If we consider this |
|
|
4893
|
Tue Jun 28 02:11:47 2011 |
Jenne | Update | Locking | Latest MICH noise budget | I have measured / calculated the latest
MICH noise budget. It doesn't really
look all that stellar. |
|
|
4892
|
Tue Jun 28 01:18:53 2011 |
rana | HowTo | SUS | free swing all optics | Chris Wipf tells me that the EPICS Mutex
Jumbo Mumbo can be overcome by upgrading
our EPICS. We should get one of Jamie's assistants |
|