ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
11770
|
Tue Nov 17 00:57:21 2015 |
ericq | Update | SUS | ITMX UL calmed? | After running
dither alignment for all mirrors, all oplevs
were recentered. (Except ETMY, since we did |
 |
11774
|
Tue Nov 17 15:59:23 2015 |
rana | Update | SUS | ITMX UL calmed? | Although this noise is bad, we have always
had these kind of humps around the bounce
mode. Our interpretation in the past was |
|
11792
|
Fri Nov 20 09:45:39 2015 |
steve | Summary | SUS | oplev laser summary |
|
|
11878
|
Mon Dec 14 14:08:49 2015 |
Steve | Update | SUS | Ruby wire standoffs update | Two companies are willing to make
the ruby grooves and the third one is still
working on their quote. |
|
11903
|
Mon Dec 28 14:12:23 2015 |
Steve | Update | SUS | 4.2M EQ | Suspensions are recovered after 4.2 Mag
earth quake. No obvoius sign of damage.
|
 |
11904
|
Wed Dec 30 11:09:52 2015 |
Steve | Update | SUS | 4.4M EQ | Suspensions recovered after 4.4 Mag EQ
|
 |
11927
|
Tue Jan 12 07:54:23 2016 |
Steve | Update | SUS | ETMX damping restored | PMC locked and ETMX suspension damping
restored. |
|
11932
|
Thu Jan 14 13:44:05 2016 |
Steve | Update | SUS | earthquake 3.6M | No obvious sign of damage.
|
 |
11935
|
Tue Jan 19 10:25:53 2016 |
Steve | Update | SUS | EQ 3.6M Ludlow | Just an other local earthquake 3.6 Mag
Ludlow, Ca
No obvious sign of damage |
|
11939
|
Wed Jan 20 09:36:11 2016 |
Steve | Update | SUS | ETMX damping restored | ETMX suspension damping restored.
|
|
11948
|
Mon Jan 25 08:36:46 2016 |
Steve | Update | SUS | PRM damping restored | PRM suspension damping restored after 4.1
Mag Ludlow earthquake.
|
  |
11975
|
Thu Feb 4 10:14:52 2016 |
Steve | Update | SUS | earthquake 3.5M |
|
|
11980
|
Mon Feb 8 09:37:07 2016 |
Steve | Update | SUS | EQ 3.9m | No sign of damage
|
|
12001
|
Mon Feb 22 08:45:46 2016 |
Steve | Update | SUS | EQ 4.3 grabs ITMX-UL magnet | Local
EQ4.3
kicks ITMX-UL magnet into stuck |
 |
12003
|
Mon Feb 22 23:00:21 2016 |
ericq | Update | SUS | ITMX free, green is flashing | Taking
inspiration from |
|
12004
|
Tue Feb 23 09:51:34 2016 |
Steve | Update | SUS | ITMX free | Good job Q! Give us more details please
or play
Rachmaninoff Piano Concernto #2 |
 |
12005
|
Tue Feb 23 17:46:09 2016 |
gautam | Update | SUS | EQ | Looks like another EQ 4.8 took out all
the watchdogs, I've restored them, everything
looks alright and doesn't look like any |
|
12036
|
Wed Mar 16 15:36:03 2016 |
Steve | Update | SUS | wire standoff test cut | Ruby wire standoff 1 mm od. with
V-groove test cut. SOS sus wire 0.0017"
od. is in the background. |
|
12037
|
Wed Mar 16 16:02:40 2016 |
Koji | Update | SUS | wire standoff test cut | It looks almost OK, but we need a bit sharper
picture for both the groove and thw wire. |
|
12038
|
Fri Mar 18 11:04:56 2016 |
Steve | Update | SUS | inverted pendulum | Kate Dooley picked up this item today. |
|
12039
|
Mon Mar 21 10:07:45 2016 |
Steve | Update | SUS | ETMX enclosure update | The enclosure top piece in the middle is
still in the machine shop.
The carpenter who helps in the |
|
12050
|
Mon Mar 28 08:30:09 2016 |
Steve | Update | SUS | PRM damping restored | Recent EQ 4.8 mag San Felipe, Mexico
trips PRM sus damping.
PRM damping restored. PMC locked. |
|
12062
|
Tue Apr 5 08:55:51 2016 |
Steve | Update | SUS | local EQ 3.1m | Local earth quake 3.1 magnitude in Valencia,
Ca did not trip our suspensions.
|
|
12071
|
Tue Apr 12 09:14:57 2016 |
Steve | Update | SUS | Ruby wire - v - groove cut pictures | The
ruby wire standoff V groove cuts are
looking good. |
|
12088
|
Mon Apr 25 11:07:06 2016 |
Steve | Update | SUS | spare SOS tower | Earth quake stops need viton tips.
Wirestandoffs are still aluminum. |
|
12092
|
Wed Apr 27 09:45:56 2016 |
rana | Update | SUS | spare SOS tower | Bah, we need ruby slippers for all future
suspensions. Prism with curved backside and
smooth grooves. |
|
12125
|
Mon May 23 10:55:49 2016 |
steve | Summary | SUS | ITMX oplev laser replaced |
May 23, 2016 |
|
12126
|
Mon May 23 15:51:32 2016 |
steve | Summary | SUS | oplev laser summary updated |
|
|
12128
|
Tue May 24 10:21:36 2016 |
ericq | Summary | SUS | ITMX Oplev loops | I did a quick measurement of the ITMX oplev
loops, both pitch and yaw have about the
same upper UGF as previous measurements with |
|
12133
|
Wed May 25 08:32:55 2016 |
Steve | Update | SUS | local EQ 3.5m | Local EQ 3.5 mag at 2:28 UTC May
24, 2016 Rancho Cucamonga, Ca.....no damage
|
 |
12144
|
Wed Jun 1 15:01:56 2016 |
Steve | Update | SUS | wire standoffs update | There are some issues with 5 mm sapphire
prism Atm5. It will cause interference
between one of the prisms and the Side OSEM. |
    |
12146
|
Thu Jun 2 16:35:44 2016 |
Koji | Update | SUS | wire standoffs update | Gap of the prism from the mirror
Sag: s = R(1-Cos[ArcSin[d/2/R]])
- Mirror curvature sag for 2mm |
 |
12149
|
Fri Jun 3 14:24:13 2016 |
Steve | Update | SUS | local EQ 3.1 m | Local EQ 3.1 mag at Jun 2, 2016 11:06:16
PM UTC, Muscoy CA........no damage
Our STS should seen this shake. |
|
12165
|
Fri Jun 10 09:52:51 2016 |
Steve | Update | SUS | EQ 5.2 mag Borego Spring | EQ 5.2 mag at Jun 10, 8:04 am UTC,
Borego Spring, CA ~150 mi away.........no
obvoius damage, damping restored, MC is locking, |
 |
12168
|
Fri Jun 10 16:19:03 2016 |
ericq | Update | SUS | ETMX watch | ETMX has been jumping around again lately.
Just now, I zeroed the ETMX alignment offsets
in the SUS model, and centered the ETMX |
|
12171
|
Mon Jun 13 10:01:58 2016 |
Steve | Update | SUS | ETMX jumps |
|
 |
12177
|
Tue Jun 14 15:55:17 2016 |
ericq | Update | SUS | ETMX watch | Within two hours, it was already all over
the place.
|
|
12178
|
Tue Jun 14 16:53:16 2016 |
rana | Update | SUS | ETMX watch | What about ETMY? and are these really microradians
or just some made up cal? |
|
12187
|
Thu Jun 16 11:10:17 2016 |
Steve | Update | SUS | spare ETMX optics preparation to be hanged |
D
Location |
    |
12199
|
Mon Jun 20 09:36:10 2016 |
Steve | Update | SUS | EQ 3.1 m Big Bear Lake, CA | No suspention lost damping.
|
|
12218
|
Tue Jun 28 09:14:27 2016 |
Steve | Update | SUS | ETMX optics preparation to be rehanged | Given the effect on the contrast defect,
the consensus at the meeting Wednesday 6-22
was that we should continue to use the existing |
|
12226
|
Wed Jun 29 08:20:04 2016 |
Steve | Update | SUS | First Contact shelf life |
We'll follow LIGO policy:
Our
policy is to use first contact within 1 year
of purchase for use in the interferometers. |
|
12227
|
Wed Jun 29 14:32:22 2016 |
Steve | Update | SUS | how to remove epoxy from optics |
Hi Steve -
|
|
12229
|
Wed Jun 29 16:02:29 2016 |
Steve | Update | SUS | ETMX beam baffle | In the attached photo from 2012, one can
see the installed black glass baffle. According
to the drawings (LIGO-DNNNXXX) this one has |
|
12230
|
Wed Jun 29 16:05:47 2016 |
ericq | Update | SUS | ETMX suspension readiness | I've gone through the SOS suspension
document (E970037)
and some old elogs to get an idea of all |
|
12231
|
Thu Jun 30 10:03:16 2016 |
Steve | Update | SUS | how to remove epoxy from optics | Proposed Acetone soak dish for SOS epoxy
softening.
It has good acces through 5" |
 |
12232
|
Thu Jun 30 14:31:02 2016 |
Chemistry | Update | SUS | NO | |
|
12241
|
Tue Jul 5 09:25:31 2016 |
Steve | Update | SUS | how to remove epoxy from optics | Glass soaking dish with teflon guides.
|
 |
12264
|
Thu Jul 7 09:13:54 2016 |
Steve | Update | SUS | SOS gluing fixture | Atm 1,
It's right arm is perfect.
Atm 3-4, The left one has bended |
    |
12315
|
Wed Jul 20 13:58:55 2016 |
Steve | Update | SUS | SUS damping out of vac chamber | Cheater
cable to be used in clean room pitch
gluing alingment. |
   |