| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
712
|
Tue Jul 22 09:24:17 2008 |
steve | Update | PSL | laser power | Laser power reality of 120 days |
|
|
1547
|
Tue May 5 10:42:18 2009 |
steve | Update | MOPA | laser power is back |
|
|
|
2142
|
Mon Oct 26 15:40:01 2009 |
steve | Update | PSL | laser power is down | The laser power is down 5-6% |
|
|
2147
|
Mon Oct 26 23:14:08 2009 |
Koji | Update | PSL | laser power is down | I adjusted the steerings to the PMC and
gained 7%. Now the MC_TRANS 7.0 has been
recovered. |
|
|
1542
|
Mon May 4 10:38:52 2009 |
steve | Update | MOPA | laser power is dropped | As PSL-126MOPA_DTEC went up, the power
out put went down yesterday |
|
|
1543
|
Mon May 4 16:49:56 2009 |
Alberto | Update | MOPA | laser power is dropped |
|
|
|
3202
|
Tue Jul 13 10:02:30 2010 |
steve | Update | MOPA | laser power is dropping slowly | I have just removed an other 400 cc of
water from the chiller. I have been
doing this since the HTEMP started fluctuating. |
|
|
335
|
Fri Feb 22 14:45:06 2008 |
steve | Update | MOPA | laser power levels |
At the beginning of this 1000 days plot shows
the laser that was running at 22C head temp
|
|
|
865
|
Thu Aug 21 10:24:20 2008 |
steve | Configuration | SAFETY | laser safe mode condition | The MOPA and PSL shutters are closed.
Manual beam blocks are in place.
Enclosure interlock is enabled.
|
|
|
6347
|
Fri Mar 2 16:05:52 2012 |
Den | Update | SAFETY | laser safety | Today I've attended the laser safety seminar. |
|
|
12921
|
Fri Mar 31 10:16:07 2017 |
Steve | Update | safety | laser safety glasses annual inspection | Laser safety glasses cleaned in "
Dawn Ultra " mild soap - water solution
and measured for 1064 nm transmission at |
|
|
8287
|
Wed Mar 13 16:04:24 2013 |
steve | Update | SAFETY | laser safety glasses checked | All safety glasses were cleaned in
soapy water by Bob. I measured their transmission
at 1064 nm, 150 mW, beam diameter 1.5 |
|
|
203
|
Wed Dec 19 16:40:12 2007 |
steve | Update | SAFETY | laser safety glasses measured | I measured the coarse transission at 1064nm
of the 40m safety glasses today.
|
|
|
6239
|
Tue Jan 31 08:44:10 2012 |
steve | Update | IOO | laser shuts down |
The 2W Innilight shutdown shut
when I opened side door for safety scan. |
|
|
6240
|
Tue Jan 31 14:58:30 2012 |
kiwamu | Update | IOO | laser shuts down | [Steve/ Kiwamu]
We found that the laser had
completely shut off for ~ 4 hours even with |
|
|
4614
|
Tue May 3 15:48:26 2011 |
Larisa Thorne | Update | Electronics | laser temperature control LPF, final version! | This is a continuation of this
The low pass filter is finally
acceptable, and its Bode graph is below (on |
|
|
9814
|
Tue Apr 15 13:24:42 2014 |
Steve | Update | PSL | laser turned on | The 2W Innolight was off for 4 hours. |
|
|
11373
|
Wed Jun 24 08:05:43 2015 |
Steve | Update | PSL | laser turned on | The laser went off around 11am yesterday.
It was turned on |
|
|
7853
|
Tue Dec 18 16:37:40 2012 |
Steve | Update | VAC | last RGA scan before vent |
|
|
|
1009
|
Tue Sep 30 13:43:43 2008 |
rob | Update | Locking | last night | Steady progress again in locking again last
night. Initial acquisition of DRMI+2ARMs
was working well.
|
|
|
1011
|
Wed Oct 1 00:24:54 2008 |
rana | Update | Locking | last night | I had mistakenly left the MC boost off during
my FAST investigations. The script is now
restored.
|
|
|
1024
|
Fri Oct 3 15:57:05 2008 |
rob | Update | Locking | last night, again | Last night was basically a repeat of the night
before--marginally better locking with the
DRMI resonating the +f2
|
|
|
6703
|
Tue May 29 15:29:16 2012 |
Jamie | Update | Computers | latest pynds installed on all new control room machines | The DASWG lscsoft package repositories
have a lot of useful analysis software.
It is all maintained for Debian "sqeeze", |
|
|
3024
|
Tue Jun 1 11:47:14 2010 |
steve | Update | PEM | lead balls on concrete |
|
|
|
3060
|
Wed Jun 9 19:47:08 2010 |
nancy | Update | PEM | lead balls on concrete |
|
|
|
14434
|
Tue Feb 5 10:11:30 2019 |
gautam | Update | VAC | leak tests complete, pumpdown 83 resumed | I guess we forgot to close V5, so we were
indeed pumping on the ITMY and ETMY annuli,
but the other three were isolated suggest |
|
|
5759
|
Fri Oct 28 18:33:59 2011 |
steve | Update | VAC | leaking nitrogen line fixed | I was lucky to notice that the nitrogen
supply line to the vacuum valves was leaking.
Closed ALL valves. Open supply line to atm. |
|
|
10790
|
Fri Dec 12 10:38:22 2014 |
Steve | Update | PEM | leaky roof | The first real rain of this year finds
only one leak at the 40m |
|
|
12031
|
Fri Mar 11 16:52:53 2016 |
Steve | Update | PEM | leaky roof | Johannes found dripping water at the vac
rack. It is safe. It is not catching anything.
Actual precipitation was only 0.62" |
|
|
12087
|
Fri Apr 22 13:58:13 2016 |
Steve | Update | PEM | leaky roof is fixed | Dan sealed the leak today.
|
|
|
2706
|
Wed Mar 24 03:58:18 2010 |
kiwamu, matt, koji | Update | Green Locking | leave PLL locked | We are leaving the PLL as it is locked
in order to see the long term stability.
And we will check the results in early morning |
|
|
2712
|
Wed Mar 24 15:59:59 2010 |
kiwamu, matt | Update | Green Locking | leave PLL locked | Matt checked it in this morning and he
found it's been locked during the night.
|
|
|
5582
|
Fri Sep 30 05:35:42 2011 |
kiwamu | Update | LSC | length fluctuations in MICH and PRCL | The MICH
and PRCL motions have been measured in some |
|
|
5584
|
Fri Sep 30 08:40:02 2011 |
Koji | Update | LSC | length fluctuations in MICH and PRCL | Tip-Tilts has almost no isolation up to
3Hz, and isolation of about 0.5 up to 10Hz.
They have vertical resonances at around |
|
|
5638
|
Sat Oct 8 04:41:07 2011 |
kiwamu | Update | LSC | length fluctuations in SRCL | For a comparison,
the length fluctuation of Signal-Recycled |
|
|
5641
|
Mon Oct 10 10:14:43 2011 |
rana | Update | LSC | length fluctuations in SRCL | How does it make sense that the motion
at 0.1 Hz of PRC is 10x larger than MICH?
|
|
|
3234
|
Fri Jul 16 12:36:00 2010 |
Katharine, Sharmila | Update | elog | levitation | After last night's challenge (or inspiration),
we levitated our magnet this morning.
Since the nice Olympus camera is not currently |
|
|
5333
|
Thu Sep 1 15:59:46 2011 |
steve | Update | SUS | light doors on at the ITMs | Suresh, Kiwamu and Steve
Heavy chamber doors replaced by light
ones at ITMX-west and ITMY-north locations. |
|
|
6117
|
Wed Dec 14 12:22:00 2011 |
Vladimir | HowTo | Computers | ligo_viewer installed on pianosa | I made a test installation of ligo_viewer
in
/users/volodya/ligo_viewer-0.5.0c |
|
|
17895
|
Tue Oct 10 17:43:39 2023 |
Murtaza | HowTo | Computer Scripts / Programs | ligocdsws - XQuartz Troubleshoot | ligocdsws
(https://git.ligo.org/christopher.wipf/ligocdsws)
is a docker with all the good stuff (cdutils, |
|
|
3884
|
Wed Nov 10 02:51:35 2010 |
yuta | Summary | IOO | limitation of current MC aligning | (Suresh, Yuta)
Summary: |
|
|
3885
|
Wed Nov 10 11:46:19 2010 |
Koji | Summary | IOO | limitation of current MC aligning | It didn't make sense in several points.
1. Is the Faraday aperture really
3mm? The beam has the gaussian radius of |
|
|
3886
|
Wed Nov 10 12:21:18 2010 |
yuta | Summary | IOO | limitation of current MC aligning | 1. We didn't measure the aperture size
last night. We have to check that.
|
|
|
3887
|
Wed Nov 10 14:28:33 2010 |
Koji | Summary | IOO | limitation of current MC aligning | 1. Look at the Faraday.
2. Look at the wiki. There is the
optical layout in PNG and PDF. |
|
|
6561
|
Tue Apr 24 14:35:37 2012 |
Jamie | Update | CDS | limited second trend lookback |
|
|
|
157
|
Mon Dec 3 00:10:42 2007 |
rana | DAQ | Computer Scripts / Programs | linemon | I've started up one of our first Matlab based
DMT processes as a test.
|
|
|
159
|
Mon Dec 3 17:55:39 2007 |
tobin | HowTo | Computer Scripts / Programs | linemon | Matlab's Signal Processing toolbox has a [url=http://www.mathworks.com/access/helpdesk/help/toolbox/signal/index.html?/access/helpdesk/help/toolbox/signal/spectrum.html]set
of algorithms for identifying sinusoids in
data[/url]. Some of them (e.g., [url=http://www.mathworks.com/access/helpdesk/help/toolbox/signal/index.html?/access/helpdesk/help/toolbox/signal/rootmusic.html&http://www.mathworks.com/cgi-bin/texis/webinator/search/]rootmusic[/url]) |
|
|
160
|
Mon Dec 3 19:06:49 2007 |
rana | DAQ | Computer Scripts / Programs | linemon | I turned up my nose at Matlab's special tools.
I modified the linetracker to use the
relationship [U][B]phase = 2*pi*f*t[/B][/U] |
|
|
9511
|
Tue Dec 31 23:19:58 2013 |
Koji | Summary | General | linux1 RAID crash & recovery | Dec 22 between 6AM and 7AM, physical or
logical failure has occure on the 4th disk
in the RAID array on linux1. |
|
|
9513
|
Thu Jan 2 10:15:20 2014 |
Jamie | Summary | General | linux1 RAID crash & recovery | Well done Koji! I'm very impressed
with the sysadmin skillz. |
|