| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12827
|
Mon Feb 13 19:44:55 2017 |
Lydia | Update | IMC | Front panel for 29.5 MHz amplifier box | I made a tentative front panel design for
the newly installed amplifier box. I used
this chassis |
|
|
12861
|
Wed Mar 1 21:15:40 2017 |
Lydia | Update | IMC | Front panel for 29.5 MHz amplifier box |
I installed the front panel today.
While I had the box out I also replaced |
|
|
12862
|
Wed Mar 1 23:56:09 2017 |
gautam | Update | IMC | Front panel for 29.5 MHz amplifier box | The
alignment wasn't disturbed for the photo-taking
- I just re-checked that the spot is indeed |
|
|
12865
|
Thu Mar 2 20:32:18 2017 |
Lydia | Update | IMC | Front panel for 29.5 MHz amplifier box | [gautam, lydia]
I pulled out the box and found
the problem: the +24 V input to the amplifier |
|
|
16167
|
Fri May 28 11:16:21 2021 |
Jon | Update | CDS | Front-End Assembly and Testing | An update on recent progress in the lab
towards building and testing the new FEs.
1. Timing problems resolved / |
|
|
16185
|
Sun Jun 6 08:42:05 2021 |
Jon | Update | CDS | Front-End Assembly and Testing | Here is an update and status report on
the new BHD front-ends (FEs).
Timing
The changes |
|
|
16220
|
Tue Jun 22 16:53:01 2021 |
Ian MacMillan | Update | CDS | Front-End Assembly and Testing | The channels on both the C1BHD and C1SUS2
seem to be frozen: they arent updating and
are holding one value. To fix this Anchal |
|
|
16224
|
Thu Jun 24 17:32:52 2021 |
Ian MacMillan | Update | CDS | Front-End Assembly and Testing | Anchal and I ran tests on the two systems
(C1-SUS2 and C1-BHD). Attached are the results
and the code and data to recreate them. |
|
|
16225
|
Fri Jun 25 14:06:10 2021 |
Jon | Update | CDS | Front-End Assembly and Testing | Summary
Here is the final
summary (from me) of where things stand with
the new front-end systems. With Anchal and |
|
|
17058
|
Thu Aug 4 19:01:59 2022 |
Tega | Update | Computers | Front-end machine in supermicro boxes | Koji and JC looked around the lab today
and found some supermicro boxes which I was
told to look into to see if they have any |
|
|
17066
|
Mon Aug 8 17:16:51 2022 |
Tega | Update | Computers | Front-end machine setup | Added 3 FE machines - c1ioo, c1lsc, c1sus
- to the teststand following the instructions
in elog15947. |
|
|
15872
|
Fri Mar 5 17:48:25 2021 |
Jon | Update | CDS | Front-end testing | Today I moved the c1bhd machine from the
control room to a new test area set up behind
(west of) the 1X6 rack. The test stand is |
|
|
15890
|
Tue Mar 9 16:52:47 2021 |
Jon | Update | CDS | Front-end testing | Today I continued with assembly and testing
of the new front-ends. The main progress
is that the IO chassis is now communicating |
|
|
15924
|
Tue Mar 16 16:27:22 2021 |
Jon | Update | CDS | Front-end testing | Some progress today towards setting up
an isolated subnet for testing the new front-ends.
I was able to recover the fb1 backup disk |
|
|
15925
|
Tue Mar 16 19:04:20 2021 |
gautam | Update | CDS | Front-end testing | Now that I think about it, I may only have
backed up the root file system of chiara,
and not |
|
|
15947
|
Fri Mar 19 18:14:56 2021 |
Jon | Update | CDS | Front-end testing | Summary
Today I finished setting
up the subnet for new FE testing. There
are clones of both fb1 and chiara running |
|
|
15959
|
Wed Mar 24 19:02:21 2021 |
Jon | Update | CDS | Front-end testing | This evening I prepared a new 2 TB 3.5"
disk to hold a copy of /opt/rtcds and /opt/rtapps
from chiara. This is the final piece of setup |
|
|
15976
|
Mon Mar 29 17:55:50 2021 |
Jon | Update | CDS | Front-end testing | Cloning of chiara:/home/cvs underway
I
returned today with a beefier USB-SATA adapter,
which has an integrated 12 V supply |
|
|
15979
|
Tue Mar 30 18:21:34 2021 |
Jon | Update | CDS | Front-end testing | Progress today:
Outside Internet access for FE
test stand
This morning Jordan |
|
|
2772
|
Mon Apr 5 13:52:45 2010 |
Alberto | Update | Computers | Front-ends down. Rebooted | This morning, at about 12 Koji found all
the front-ends down.
At 1:45pm rebooted ISCEX, ISCEY, |
|
|
2376
|
Thu Dec 10 08:40:12 2009 |
Alberto | Update | Computers | Fronte-ends down | I found all the front-ends, except for
C1SUSVME1 and C0DCU1 down this morning. DAQAWG
shows up green on the C0DAQ_DETAIL screen |
|
|
2378
|
Thu Dec 10 08:50:33 2009 |
Alberto | Update | Computers | Fronte-ends down |
|
|
|
2382
|
Thu Dec 10 10:01:16 2009 |
Jenne | Update | Computers | Fronte-ends down | All the front ends are back up.
|
|
|
2383
|
Thu Dec 10 10:31:18 2009 |
Jenne | Update | Computers | Fronte-ends down |
|
|
|
16336
|
Thu Sep 16 01:16:48 2021 |
Koji | Update | General | Frozen 2 | It happened again. Defrosting required. |
|
|
10756
|
Thu Dec 4 23:45:30 2014 |
Jenne | Update | CDS | Frozen? | [Jenne, Q, Diego]
I don't know why, but everything
in EPICS-land froze for a few minutes just |
|
|
3782
|
Tue Oct 26 01:53:21 2010 |
Joonho Lee | Update | Electronics | Fuction Generator removed. | Today
I worked on how to measure cable impedance
directly. |
|
|
8908
|
Tue Jul 23 16:39:31 2013 |
Koji | Update | General | Full IFO alignment recovered | [Annnalisa Koji]
Full alignment of the IFO was recovered.
The arms were locked with the green beams |
|
|
8912
|
Tue Jul 23 20:41:40 2013 |
gautam | Configuration | endtable upgrade | Full range calibration and installation of PZT-mounted mirrors | Given
that the green beam is to be used as the |
|
|
8967
|
Mon Aug 5 18:48:44 2013 |
gautam | Configuration | endtable upgrade | Full range calibration of PZT mounted mirrors for Y-endtable | I
had prepared two more PZT mounted mirrors
for the Y-end some time back. These are: |
|
|
2279
|
Tue Nov 17 10:09:57 2009 |
josephb | Update | Environment | Fumes | The smell of diesel is particularly bad
this morning. Its concentrated enough
to be causing me a headache. I'm heading |
|
|
6191
|
Thu Jan 12 11:08:23 2012 |
Leo Singer | Update | PEM | Funky spectrum from STS-2 | I am trying to stitch together spectra
from seismometers and accelerometers to produce
a ground motion spectrum from Hz to 100's |
|
|
932
|
Fri Sep 5 09:56:14 2008 |
josephb, Eric | Configuration | Computers | Funny channels, reboots, and ethernet connections | 1) Apparently the I00-ICS type channels had
gotten into a funny state last night, where
they were showing just noise, exactly when |
|
|
687
|
Thu Jul 17 00:59:18 2008 |
Jenne | Summary | General | Funny signal coming out of VCO | While working on calibrating the MC_F signal,
Rana and I noticed a funny signal coming
out of the VCO. We expect the output to |
|
|
9583
|
Tue Jan 28 22:24:46 2014 |
ericq | Update | General | Further Alignment | [Masasa, ericq]
Having no luck doing things remotely,
we went into the ITMX chamber and roughly |
|
|
12107
|
Thu May 5 14:03:52 2016 |
ericq | Update | LSC | Further Aux X PDH tweaks | This morning I poked around with the green
layout a bit. I found that the iris immediately
preceding the viewport was clipping the ingoing |
|
|
4581
|
Thu Apr 28 12:25:11 2011 |
josephb | Update | CDS | Further adventures in Hyper-threading | First, I disabled front end starts on boot
up, and brought c1sus up. I rebuilt
the models for the c1sus computer so they |
|
|
13741
|
Mon Apr 9 18:46:03 2018 |
gautam | Update | IOO | Further debugging |
I analyzed the data from the free
swinging MC test conducted over the weekend. |
|
|
13744
|
Tue Apr 10 14:28:44 2018 |
gautam | Update | IOO | Further debugging | I am working on IMC electronics. |
|
|
2654
|
Thu Mar 4 02:25:14 2010 |
Jenne | Update | COC | Further details on the magnet story, and SRM guiderod glued | [Koji, Jenne]
First, the easy story: |
|
|
12507
|
Mon Sep 19 22:03:10 2016 |
ericq | Update | General | Further recovery progress | [ericq, Lydia, Teng]
Brief summary of this afternoon's
activities: |
|
|
12508
|
Tue Sep 20 10:45:06 2016 |
rana | Update | General | Further recovery progress | Rana suspicious. We had arms locked before
pumpdown with beams on Transmon PDs. If they're
off now, must be beams are far off on the |
|
|
12510
|
Wed Sep 21 01:08:02 2016 |
ericq | Update | General | Further recovery progress | The misalignment wasn't as bad as I
had intially feared; the spot was indeed
pretty high on ETMX at first. Both transmon |
|
|
11414
|
Tue Jul 14 17:14:23 2015 |
Eve | Summary | Summary Pages | Future summary pages improvements | Here is a list of suggested improvements
to the summary pages. Let me know if there's
something you'd like for me to add to |
|
|
11437
|
Wed Jul 22 22:06:42 2015 |
Eve | Summary | Summary Pages | Future summary pages improvements | - CDS Tab
We want to monitor the status of the |
|
|
8045
|
Fri Feb 8 21:14:52 2013 |
Manasa | Update | Optics | G&H - AR Reflectivity | Hours of struggle and still no
data |
|
|
8046
|
Fri Feb 8 22:49:31 2013 |
Koji | Update | Optics | G&H - AR Reflectivity | How about to measure the AR reflectivity
at larger (but small) angles the extrapolate
the function to smaller angle, |
|
|
8047
|
Fri Feb 8 23:04:40 2013 |
Manasa | Update | Optics | G&H - AR Reflectivity |
|
|
|
8051
|
Sat Feb 9 19:34:34 2013 |
rana | Update | Optics | G&H - AR Reflectivity |
Use the trick I suggested:
Focus the beam so that the beam size |
|
|
8063
|
Mon Feb 11 19:55:47 2013 |
Manasa | Update | Optics | G&H - AR Reflectivity |
I adjusted the focal length of the
focusing lens and reduced the beam size enough |
|