| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1386
|
Wed Mar 11 14:51:01 2009 |
Kakeru, Joe, Rob | Update | IOO | MC alignment | This morning, MC alignment was gone and
MC wasn't lock.
We checked old value of pitch, yaw, |
|
|
2852
|
Tue Apr 27 22:28:58 2010 |
Zach | Update | IOO | MC alignment | Beginning last week, I have been helping
Koji with some of the IO work that must be
done for the 40m upgrade. The first thing |
|
|
2855
|
Wed Apr 28 12:05:44 2010 |
Zach | Update | IOO | MC alignment | I have worked out the first set of adjustments
to make on the MC mirrors (all angle figures
are in units of the increments on the control |
|
|
2856
|
Wed Apr 28 14:15:58 2010 |
Alberto | Update | IOO | MC alignment |
That's interesting.
Would it be possible to write about |
|
|
2858
|
Wed Apr 28 14:42:55 2010 |
Zach | Update | IOO | MC alignment | Sure. I figured I would put up a How-To
if it works. |
|
|
3012
|
Fri May 28 21:32:32 2010 |
Alberto | Update | 40m Upgrading | MC alignment | [Alberto, Kiwamu, Kevin, Rana]
Today we tried to measured the beam
shape after the MC MMT1 that Jenne installed |
|
|
3013
|
Fri May 28 23:21:52 2010 |
Koji | Update | IOO | MC alignment | Hm... You touched the optics between the
MC and the Faraday... This will lead us to
the painful work. |
|
|
3019
|
Mon May 31 00:10:18 2010 |
kiwamu | Update | IOO | MC alignment | [Alberto, Kiwamu]
The MC |
|
|
3020
|
Mon May 31 03:38:48 2010 |
Koji | Update | IOO | MC alignment | Remember
that you only can introduce the axis translations
from the PSL table. |
|
|
3903
|
Fri Nov 12 00:42:11 2010 |
rana, koji | Update | IOO | MC alignment | We decided to ignore the computer script
outputs for the beam positions and use instead
the eyeball method to get the beam into the |
|
|
6115
|
Wed Dec 14 01:35:06 2011 |
Koji | Update | IOO | MC alignment craziness | ~11PM I came to the 40m and found the MC
is repeating "LOCK->WFS ON->UNLOCK"
sequence for ~2hours. |
|
|
6118
|
Wed Dec 14 14:07:48 2011 |
Koji | Update | IOO | MC alignment craziness | [Kiwamu Koji]
To check if the MC alignment is OK |
|
|
11106
|
Fri Mar 6 00:59:13 2015 |
rana | Summary | IOO | MC alignment not drifting; PSL beam is drifting | In the attached plot you can see that the
MC REFL fluctuations started getting larger
on Feb 24 just after midnight. Its been bad |
|
|
11112
|
Fri Mar 6 19:54:15 2015 |
rana | Summary | IOO | MC alignment not drifting; PSL beam is drifting | MC Refl
alignment follow up: the alignment from last |
|
|
11147
|
Thu Mar 19 16:58:19 2015 |
Steve | Summary | IOO | MC alignment not drifting; PSL beam is drifting | Polaris mounts ordered.
|
|
|
11149
|
Fri Mar 20 10:51:09 2015 |
Steve | Summary | IOO | MC alignment not drifting; PSL beam is drifting | Are the two visible small srews holding
the adapter plate only?
If yes, it is the weakest point |
|
|
9336
|
Mon Nov 4 12:59:43 2013 |
Jenne | Update | IOO | MC alignment not so good after PSL output shutter installed |
|
|
|
6426
|
Fri Mar 16 16:03:03 2012 |
kiwamu | Update | IOO | MC alignment servo : put some offsets in the TRANS QPD signal | The
MC alignment servo wasn't great in the last
1 hour or so as it kept disturbing the MC |
|
|
307
|
Sun Feb 10 21:43:16 2008 |
rob | Configuration | IOO | MC alignment tweaked |
I adjusted the alignment of the free hanging
mode cleaner to best transmit the PSL beam. |
|
|
3174
|
Wed Jul 7 22:58:08 2010 |
nancy | Update | IOO | MC alignment values. | Nancy and Koji:
This is what I and Koji measured
after aligning the MC in the afternoon. |
|
|
3175
|
Wed Jul 7 23:11:08 2010 |
Koji | Update | IOO | MC alignment values. | Hmm. I expect that you will put more details
of the work tomorrow.
i.e. motivation, method, result (the |
|
|
3183
|
Thu Jul 8 20:32:22 2010 |
nancy | Update | IOO | MC alignment values. | I and Koji were trying to lock the mode
cleaner for measuring the beam power at
MC2 end. That is when we obtained the trans |
|
|
4305
|
Wed Feb 16 01:03:59 2011 |
Jenne | Update | IOO | MC alignment work | So.... Kiwamu and I were concerned (still
a little concerned) that ETMY is not damping
as nicely as it should be. (It's fine, |
|
|
4316
|
Thu Feb 17 14:52:27 2011 |
Jenne | Update | IOO | MC alignment work | I worked a little bit more on optimizing
the mode matching to the MC, but it's still
not great. I've only gotten a visibility |
|
|
7557
|
Tue Oct 16 11:54:05 2012 |
Jenne | Update | IOO | MC alignment?? | The MC won't survive the boosts right now.
Pizza meeting is in a minute, and I won't
be back to the lab before ~3:30 because of |
|
|
9898
|
Fri May 2 02:22:56 2014 |
rana, Q | Update | IOO | MC alignments | We were having unstable MC locking so we
did some physical alignment touch up. Use
MC suspension bias to have good MC alignment. |
|
|
8281
|
Wed Mar 13 02:48:13 2013 |
Jenne | Update | IOO | MC all better | Koji reminded me (again....this is probably
the 2nd or 3rd time I've "discovered"
this, at least) that the script |
|
|
6679
|
Thu May 24 19:39:18 2012 |
Suresh | Update | IOO | MC and WFS alignment adjusted | [Yuta, Suresh]
We found that the MC was not locking
and that the alignment between PSL and MC |
|
|
10317
|
Fri Aug 1 01:57:24 2014 |
Koji | Summary | IOO | MC auto locker | To make MC auto locker running correctly,
mcdown and mcup were revised
I tried it by unlocking MC several |
|
|
10319
|
Fri Aug 1 08:55:34 2014 |
Koji | Summary | IOO | MC auto locker | It seems that the MC auto locker and the
FSSSlow PID servo survived a night.
PC Drive is still angry occasionally. |
|
|
36
|
Wed Oct 31 08:38:35 2007 |
rana | Problem Fixed | IOO | MC autolocker | The MC was having some trouble staying locked
yesterday. I tracked this down to some steps
in the last
|
|
|
7735
|
Tue Nov 20 20:37:51 2012 |
Koji | Update | IOO | MC autolocker | Last night I found that the MC autolocker
has not been updated since the chamber was
closed. |
|
|
10048
|
Tue Jun 17 12:04:40 2014 |
manasa | Update | Computer Scripts / Programs | MC autolocker NOT running, FB needs some attention | MC autolocker and Ottavia
I assume that the MC was left with
a fully functioning autolocker enabled and |
|
|
10247
|
Mon Jul 21 13:58:33 2014 |
ericq | Update | IOO | MC autolocker acting up | The autolocker claimed it was running and
blinking, but not doing anything (i.e. lock
bit was not updating and no switches or sliders |
|
|
8627
|
Thu May 23 10:48:42 2013 |
Manasa | Update | IOO | MC autolocker and MCWFS enabled | Some strong seismic noise (not related
to any earthquakes - watchdogs are all green)
had got the MC unlocked this morning. |
|
|
5689
|
Tue Oct 18 22:47:09 2011 |
Suresh | Configuration | IOO | MC autolocker script edited to shutdown and restart WFS loops |
|
|
|
16480
|
Tue Nov 23 18:02:05 2021 |
Anchal | Update | IMC | MC autolocker shifted to python3 script running in docker | I finished copying over the current autolocker
bash script functionality into a python script |
|
|
7121
|
Wed Aug 8 18:01:58 2012 |
Jenne | Update | IOO | MC autolocker threshold changed | Jan and Manasa are going to elog about
their work later, but it involved putting
a BS/window/some kind of pick off in front |
|
|
3352
|
Tue Aug 3 03:15:06 2010 |
nancy | Update | IOO | MC back to locked mode | I turned the WFS gain to 0.02 back, and
the MC is locked, the data for the seismic
motion might be meaningful nowforth. |
|
|
4660
|
Sun May 8 16:32:52 2011 |
valera | Update | IOO | MC beam spot centering | Kiwamu told me that the CDS matrix
notation has changed and the 40m front end
code has changed since February. I changed |
|
|
4661
|
Sun May 8 17:29:01 2011 |
rana | Update | IOO | MC beam spot centering | It seems like the best option would be
to make the MCASS just adjust the SUS biases
and center the beams on the suspended optics. |
|
|
4659
|
Sat May 7 18:08:54 2011 |
valera | Update | IOO | MC beam spot centering script | I tried to run the scripts/senseMCdecentering
to check the centering of the MC beam spots
on the mirrors. The script (csh) produces |
|
|
6715
|
Wed May 30 15:51:22 2012 |
yuta | Update | IOO | MC beam spot oscillation | [Koji, Suresh, Jenne, Yuta]
Background:
We noticed that the beam spots |
|
|
6718
|
Wed May 30 19:27:38 2012 |
yuta | Update | IOO | MC beam spot oscillation | [Koji, Yuta]
We found that C1:SUS-MC{1,2,3}_TO_COIL_3_4_GAIN |
|
|
6719
|
Wed May 30 20:12:15 2012 |
rana | Update | IOO | MC beam spot oscillation | This is a common occurrence when diagnostic
scripts are written without the ability to
handle exceptions (e.g. ctrl-c, terminal |
|
|
6728
|
Thu May 31 10:31:19 2012 |
Jamie | Update | IOO | MC beam spot oscillation |
|
|
|
6868
|
Mon Jun 25 15:07:49 2012 |
yuta | Update | IOO | MC beam spot trend | I adjusted MC WFS offsets using /opt/rtcds/caltech/c1/scripts/MC/WFS/WFS_FilterBank_offsets.
Beam spot positions on MC mirrors |
|
|
6164
|
Wed Jan 4 00:43:06 2012 |
kiwamu | Update | IOO | MC became flaky | I
don't know what exactly is going on, but
MC became flaky and it's been frequently |
|
|
9892
|
Thu May 1 14:45:44 2014 |
Jenne | Update | LSC | MC board back in |
|
|
|
10017
|
Mon Jun 9 23:08:58 2014 |
Jenne | Update | IOO | MC board checkout | Rana mentioned this in his elog entry re:
SLOW computer recovery, but I want to highlight
it: |
|