ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
10529
|
Wed Sep 24 08:39:32 2014 |
Jenne, EricQ | Update | General | Vent prep for SRC length change |
|
|
8889
|
Mon Jul 22 16:30:31 2013 |
Koji | Update | General | Vent preparation | [Annalisa, Manasa, Jenne, Koji]
We are working on the vent preparation.
First of all, |
|
8890
|
Mon Jul 22 16:56:14 2013 |
Jenne | Update | General | Vent preparation - In progress | Pre-vent checklist
Center all oplevs/IPPOS/IPANG
Align the arm cavities for |
|
8893
|
Mon Jul 22 18:49:16 2013 |
Jenne | Update | General | Vent preparation - In progress | I have just centered IPPOS, as well as
PSL POS and PSL ANG (also called IOO POS
and IOO ANG on the screens). Annalisa |
|
8894
|
Mon Jul 22 21:23:04 2013 |
manasa | Update | General | Vent preparation - In progress | [Gautam, Manasa]
Green steering mirrors have been
swapped with PZT mirrors at the X end table. |
|
8898
|
Tue Jul 23 03:10:57 2013 |
Koji | Update | General | Vent preparation - In progress | Centering
of the oplev beams: done
|
 |
8899
|
Tue Jul 23 03:43:32 2013 |
manasa | Update | General | Vent preparation - In progress | There seems to be an unexplained oscillation
in X arm cavity transmission for IR when |
|
8901
|
Tue Jul 23 04:22:03 2013 |
Koji | Update | General | Vent preparation - In progress | [Koji Jenne]
Low
power MC locking |
|
8903
|
Tue Jul 23 04:31:36 2013 |
Jenne | Update | General | Vent preparation - Ready for Vent | After
everyone's work today (good teamwork everybody!!),
|
|
14059
|
Thu Jul 12 16:18:22 2018 |
Steve | Update | VAC | Vent preparations | We are getting ready to vent.
|
 |
8929
|
Fri Jul 26 22:45:14 2013 |
manasa | Update | General | Vent progress | [Koji, Manasa]
The arms were brought back to resonance
after yesterday's vent work.
|
|
8936
|
Tue Jul 30 00:21:15 2013 |
Koji | Update | General | Vent progress | [Koji, Manasa, Sujan]
Tomorrow we'll make final checks |
|
10541
|
Thu Sep 25 19:42:12 2014 |
ericq | Update | General | Vent progress | [q, Jenne, Manasa]
ELOG Outline
Aligned arms
|
|
10544
|
Fri Sep 26 12:25:34 2014 |
ericq | Update | General | Vent progress | I figured out that didn't change the initial
guess for the fit routine in Gabriele's code.
I also changed the fminsearch criteria to |
|
12243
|
Tue Jul 5 17:14:02 2016 |
ericq | Update | General | Vent progress | Rough summary of today's progress:
IMC locked, reasonably
aligned. (Only have MC2 trans reference, |
 |
12245
|
Tue Jul 5 19:10:41 2016 |
rana | Update | General | Vent progress | I'd suggest clamping and moving it
to the flow bench so you can inspect with
a bright light. Then remove the wire and |
|
12246
|
Tue Jul 5 21:51:35 2016 |
ericq | Update | General | Vent progress | One glitch was seen to occur without a
change in the output voltage monitors in ELOG |
|
12270
|
Thu Jul 7 17:12:50 2016 |
Johannes | Update | General | Vent progress | I performed a visual inspection of ITMY
in its natural habitat today. I did not get
any great pictures from the HR side because |
   |
12285
|
Sun Jul 10 17:33:00 2016 |
ericq | Update | General | Vent progress | It took a little time, but I relocked the
IMC and realigned to the point where the
PRC is flashing, visible on REFL and AS, |
|
12247
|
Tue Jul 5 23:38:42 2016 |
gautam | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | With Koji's help, I've hacked together
an arrangement that will allow us to monitor
the output of the coil driver to the UL coil. |
|
12261
|
Wed Jul 6 22:58:01 2016 |
gautam | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | I've made a few changes to the monitoring
setup in the hope we catch a glitch in the
DAC output/ sus coil driver electronics. |
|
12263
|
Thu Jul 7 00:25:07 2016 |
ericq | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | It may be advantageous to look at the coil
output data from when the OSEM damping is
on, to try and reproduce the real output |
|
12265
|
Thu Jul 7 10:49:03 2016 |
gautam | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation |
|
|
12271
|
Fri Jul 8 11:35:45 2016 |
gautam | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | Yesterday, I expanded the extent of the
ETMX suspension coil driver investigation.
I set up identical monitors for two more |
|
12272
|
Fri Jul 8 11:48:09 2016 |
Koji | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | YES
Move the suspension on the south |
|
12281
|
Fri Jul 8 21:22:38 2016 |
gautam | Update | General | Vent progress - ETMX SUS Coil driver electronics investigation | While ETMX is out, I'm leaving
the larger amplitude excitations to the coils
on over the weekend, in case any electronic |
|
12297
|
Wed Jul 13 00:38:25 2016 |
Johannes | Update | General | Vent progress - ETMY attempted repositioning | [Lydia, Johannes]
We attempted to move the ETMY suspension
near the access port in preparation for the |
|
12310
|
Tue Jul 19 13:21:42 2016 |
Johannes | Update | General | Vent progress - ETMY attempted repositioning | [Lydia, Johannes]
We moved ITMY from its original
position to a place near the access point. |
|
12295
|
Tue Jul 12 23:51:16 2016 |
Johannes | Update | General | Vent progress - ETMY inspection | On Monday I inspected ETMY, and found nothing
really remarkable. There was only little
dust on the HR side, and nothing visible |
 |
12289
|
Mon Jul 11 15:13:22 2016 |
gautam | Update | General | Vent progress: in-date First Contact procured | I have obtained 2x100cc bottles of in-date
first contact from Garilynn (use before date
is 09/14/2016) for cleaning of our test-masses. |
|
12534
|
Wed Oct 5 19:43:13 2016 |
gautam | Summary | General | Vent review | This elog is meant to review some of the
important changes made during the vent this
summer - please add to this if I've forgotten |
|
9572
|
Thu Jan 23 23:10:19 2014 |
ericq | Update | General | Vent so far | [ericq, Manasa, Jenne]
Summary: We opened up the
BS and both ITM chambers today, and put the |
|
9579
|
Mon Jan 27 21:36:35 2014 |
ericq | Update | General | Vent so far | After turning the slow FSS threshold down,
the mode cleaner stays locked enough to do
other things. We were able to align the tip |
|
2360
|
Mon Dec 7 09:38:05 2009 |
Koji | Update | VAC | Vent started | Steve, Jenne, Koji
The PSL was blocked by the |
|
14607
|
Tue May 14 10:35:58 2019 |
gautam | Update | General | Vent underway |
PSL had stayed on overnight. There
was an EQ (M 4.6 near Costa Rica) which showed
up on the Seis BLRMS, and I noticed that |
 |
10545
|
Fri Sep 26 16:10:14 2014 |
ericq | Update | General | Vent update | Today so far:
I moved SRM forward by
3mm
Then I leveled the ITMY |
|
10546
|
Fri Sep 26 17:13:39 2014 |
ericq | Update | General | Vent update |
|
|
10549
|
Mon Sep 29 12:47:51 2014 |
ericq | Update | General | Vent update |
|
|
10550
|
Mon Sep 29 17:10:51 2014 |
ericq | Update | General | Vent update | Everything is aligned, AS and POY make
it out of vacuum unclipped, OSEM readings
look good. |
|
10551
|
Mon Sep 29 18:12:24 2014 |
ericq | Update | General | Vent update | I closed the PSL shutter as we didn't want
to burn the mirror surface when we are not
working. |
|
10552
|
Tue Sep 30 11:53:29 2014 |
ericq | Update | General | Vent update |
Photos have been taken of the ITMY
chamber, and uploaded to picasa. Here's a |
|
7306
|
Wed Aug 29 11:47:21 2012 |
ericq | Update | VAC | Venting | [Steve, Eric]
I've been helping Steve vent this
morning. The following things were done (from |
|
38
|
Wed Oct 31 10:31:23 2007 |
Andrey Rodionov | Routine | VAC | Venting is in progress |
We (Steve, David, Andrey) started venting
the vacuum system at 9.50AM Wednesday morning. |
|
17866
|
Thu Sep 21 14:22:02 2023 |
Radhika | Summary | Electronics | Vertex Electronics CDS Update | I recalculated the scale factors between
OSEM sensor readings after/before the upgrade.
The expected factor is 8.64, although we |
|
17867
|
Fri Sep 22 16:20:25 2023 |
Radhika | Summary | Electronics | Vertex Electronics CDS Update | Today we tried to debug the unreasonable
OSEM readings (see previous ELOG)
|
 |
17868
|
Fri Sep 22 18:26:08 2023 |
Radhika | Summary | Electronics | Vertex Electronics CDS Update | [Koji, Radhika, Murtaza]
All upgraded suspensions |
 |
17871
|
Fri Sep 22 19:38:06 2023 |
Murtaza | Summary | Electronics | Vertex Electronics CDS Update | PRM
CHANNEL 1-4 (BS FEEDTHROUGH 1-3) |
 |
17830
|
Thu Sep 7 14:09:37 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | The vertex electronics transition work
will begin on Monday. We expect the ongoing
ASS-X work to be completed by then. But if |
 |
17838
|
Tue Sep 12 18:55:55 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | We are ready to do the transition
from Wed 1PM.
The items for the upgrade was collected |
|
17839
|
Tue Sep 12 23:10:06 2023 |
Koji | Summary | Electronics | Vertex Electronics Transition | Note on Sorensen:
- Eurocard crate requires
+-15V. We can place two 15V Sorensens on |
|