ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
16007
|
Thu Apr 8 17:04:43 2021 |
Anchal, Paco | Update | SUS | First Successful Coil Balancing | Today, we finally crossed the last hurdle
and got a successful converging coil balancing
run. |
  |
565
|
Wed Jun 25 11:36:14 2008 |
Max Jones | Update | Computer Scripts / Programs | First Week Update | For the first week I have been modifying the
noise budget script in caltech/NB to run
with 40 m parameters and data. As per Rana's |
 |
6879
|
Wed Jun 27 11:33:28 2012 |
Masha | Update | General | First Week Update | This week I wrote Matlab code, most of
which can be found in /users/masha
First, I wrote a simulation seismicFilter.m |
|
6878
|
Wed Jun 27 11:27:49 2012 |
Liz | Update | | First Week Update! | This week, the
other SURF students and I got
|
|
3099
|
Tue Jun 22 20:07:08 2010 |
Jenne | Update | 40m Upgrading | First attempt at Tip Tilt hanging | [Jenne, Steve, Nancy, Gopal]
We
made an attempt at hanging some of the Tip |
 |
5639
|
Sun Oct 9 17:13:46 2011 |
kiwamu | Update | LSC | First attempt to estimate mode matching efficiency using interferometer | The efficiency
of the mode matching (MM) to PRC (Power-Recycling |
|
5640
|
Mon Oct 10 00:01:26 2011 |
Koji | Update | LSC | First attempt to estimate mode matching efficiency using interferometer | "^2"s are missing in the second
equation, but the calculation results seem
correct. |
|
16892
|
Mon Jun 6 13:35:11 2022 |
Paco | Update | LSC | First calibrated spectra of MICH at AS55 Q | [Paco, Yuta]
On the topic of high AS55_Q RFPD
offset, it seems it stems from a small residual |
 |
13250
|
Thu Aug 24 18:02:16 2017 |
Gabriele | Summary | LSC | First cavity length reconstruction with a neural network | 1) Introduction
In brief, I
trained a deep neural network (DNN) to recosntuct
the cavity length, using as input only the |
8x |
13251
|
Thu Aug 24 18:51:57 2017 |
Koji | Summary | LSC | First cavity length reconstruction with a neural network | Phenomenal!
|
|
13256
|
Sat Aug 26 09:56:34 2017 |
Gabriele | Summary | LSC | First cavity length reconstruction with a neural network | Update
I included the 55 MHz
sideband and higher order modes in my
training examples. To keep things simple, |
   |
13258
|
Mon Aug 28 08:47:32 2017 |
Jamie | Summary | LSC | First cavity length reconstruction with a neural network |
|
|
12065
|
Wed Apr 6 17:52:21 2016 |
gautam | Update | endtable upgrade | First contact cleaning commenced | I've begun cleaning the optics that
will eventually go back onto the newly installed
X-endtable. We decided that First Contact |
|
14613
|
Thu May 16 13:07:14 2019 |
gautam | Update | SUS | First contact residue removal | I used a pair of tweezers to remove
the stray fiber of first contact. As Koji
predicted, this was rather dry and so it |
 |
43
|
Thu Nov 1 01:28:04 2007 |
waldman | Other | OMC | First digital lock of OMC | [Pinkesh, Sam]
We locked a fiber based NPRO to the suspended |
   |
13932
|
Fri Jun 8 01:08:22 2018 |
johannes | Update | PSL | First light of AUX at YEND | Among the things that we hadn't taken
care of yesterday before beginning to look
for transmission signals were the polarization |
  |
15534
|
Thu Aug 20 00:21:51 2020 |
gautam | Update | Electronics | First look at HV coil driver | Summary:
A single channel of this
board was stuffed (and other channels |
  |
15536
|
Sun Aug 23 23:36:58 2020 |
gautam | Update | Electronics | First look at HV coil driver | Summary:
A more careful analysis has revealed
some stability problems. |
 |
13274
|
Wed Aug 30 11:04:08 2017 |
Gabriele | Summary | LSC | First look at neural network reconstruction of PRMI motion | Introduction
I trained a deep
neural network (DNN) to reconstruct MICH
and PRCL degrees of freedom in the PRMI configuration. |
   |
13674
|
Thu Mar 8 23:50:27 2018 |
gautam | Update | ALS | First look at new ALS electronics |
Locked single arms, dither aligned,
and saved offsets to EPICS (slow) sliders
in anticipation of having to reboot all vertex |
|
13675
|
Fri Mar 9 01:07:01 2018 |
gautam | Update | ALS | First look at new ALS electronics | [koji,
gautam] |
|
1714
|
Thu Jul 2 06:31:35 2009 |
Clara | Update | PEM | First mic in place and connected | I clamped Bonnie (microphone) to the top
of a chamber near the vertex of the arms
and placed Clyde (pre-amp) on the table right |
|
8874
|
Thu Jul 18 20:20:52 2013 |
gautam | Configuration | endtable upgrade | First mirror glued to PZT and mounted in modified mounts |
Yesterday,
I mounted the first PZT in one of the modified |
|
11979
|
Fri Feb 5 16:50:24 2016 |
gautam | Update | Green Locking | First pass at mode-matching | I've done a first pass at trying to
arrive at a mode-matching solution for the
X-end table once we swtich the lasers out. |
   |
3593
|
Tue Sep 21 16:05:21 2010 |
josephb | Update | CDS | First pass at rack diagram | I've made a first pass at a rack diagram
for the 1X1 and 1X2 racks, attached as png.
Gray is old existing boards, power |
|
5157
|
Tue Aug 9 16:21:59 2011 |
Manuel, Ishwita | Update | WienerFiltering | First results of our simulations | We did the simulation of the stacks by
defining a transfer function for one stack
(green |
  |
2941
|
Mon May 17 19:42:11 2010 |
Jenne | Update | IOO | First steps toward MC mode measuring | [Jenne, Kevin, Steve]
We made some progress toward getting
the MC's beam profile measured. In |
|
2942
|
Tue May 18 01:40:56 2010 |
Koji | Update | IOO | First steps toward MC mode measuring | OK. Don't worry. This is just an initial
confusion which we also had for the suspensions
a while ago. |
|
2945
|
Tue May 18 12:04:13 2010 |
rob | Update | IOO | First steps toward MC mode measuring |
|
|
2949
|
Tue May 18 16:44:35 2010 |
Koji | Update | IOO | First steps toward MC mode measuring | Here is the upadted list http://lhocds.ligo-wa.caltech.edu:8000/40m/Upgrade_09/Optics
|
|
15926
|
Tue Mar 16 19:13:09 2021 |
Paco, Anchal | Update | SUS | First success in Input Matric Diagonalization | After jumping through few hoops, we have
one successful result in diagonalizing the
input matrix for MC1, MC2 and MC3. |
 |
10959
|
Fri Jan 30 02:57:03 2015 |
Jenne | Update | Modern Control | First try with PRCL ASC Wiener filtering | [Aside - How do you rotate plots in the
new elog? It's showing them correctly
in the attachments list below the entry, |
9x |
6882
|
Wed Jun 27 14:18:30 2012 |
Yaakov | Summary | STACIS | First week summary | The beginning of my first week was spent
at various orientations and safety meetings,
some for general SURF and some more specific |
|
16373
|
Mon Oct 4 15:50:31 2021 |
Hang | Update | Calibration | Fisher matrix estimation on XARM parameters | [Anchal, Hang]
What: Anchal and I measured the
XARM OLTF last Thursday. |
   |
16486
|
Mon Nov 29 15:24:53 2021 |
Hang | HowTo | General | Fisher matrix vs length of each FFT segment | We have been discussing how does the parameter
estimation depends on the length per FFT
segment. In other words, after we collected |
   |
5015
|
Thu Jul 21 23:36:51 2011 |
Jenny | Update | | Fitting beam waist with MATLAB | I am starting work on the PSL table at
the 40m. My goal is to lock the laser coming
from the nearby table to the FP cavity and |
|
512
|
Tue Jun 3 02:15:29 2008 |
Andrey | Summary | Cameras | Fitting results |
There have been a lot of work going on related
to the processing of images captured by the |
   |
16467
|
Tue Nov 16 11:37:26 2021 |
Hang | HowTo | SUS | Fitting suspension model--large systematic errors | One goal of our sysID study is to improve
the aLIGO L2A feedforward. Our algorithm
currently improves only the statistical uncertainty |
 |
14439
|
Thu Feb 7 17:27:53 2019 |
Koji | Summary | Tip-TIlt | Five FiveNine Optics Optics delivered | 5 PR3/SR3 optics from FiveNine Optics were
delivered. The data sheets were scanned and
uploaded to the following wiki page. https://wiki-40m.ligo.caltech.edu/Aux_Optics |
|
14442
|
Fri Feb 8 00:20:56 2019 |
gautam | Summary | Tip-TIlt | Five FiveNine Optics Optics delivered | They have been stored on the 3rd shelf
from top in the clean optics cabinet at the
south end. EX |
|
16274
|
Tue Aug 10 17:24:26 2021 |
paco | Update | General | Five day trend | Attachment 1 shows a five and a half day
minute-trend of the three temperature sensors.
Logging started last Thursday ~ 2 pm when |
|
16887
|
Fri Jun 3 12:13:58 2022 |
Paco | Configuration | CDS | Fix RFM channels | [Paco, Yuta]
We tried fixing the issue of LSC_TRY
and LSC_TRX channels not working. We first |
|
4868
|
Thu Jun 23 21:35:46 2011 |
Jamie, Rana, Kiwamu | Update | SUS | Fix calibration for sus sensors | We have fixed the counts-to-micron (cts2um)
calibration for the suspension sensor filters.
Each suspension sensor filter bank (e.g. |
|
8325
|
Thu Mar 21 12:04:05 2013 |
Manasa | Update | Computers | Fixed | All FE computers are back.
Restart procedure:
0a. Restart frame builder: |
|
8326
|
Thu Mar 21 12:33:51 2013 |
rana | Update | Computers | Fixed | Please stop power cycling computers. This
is not an acceptable operation (as Jamie
already wrote before). When you don't know |
|
8453
|
Sun Apr 14 17:30:14 2013 |
Manasa | Update | Locking | Fixed | TRY path fixed and ready for normalization.
I used 2" BS at R=50 and R=98 |
|
8455
|
Sun Apr 14 23:20:42 2013 |
Den | Update | Locking | Fixed |
|
|
8463
|
Thu Apr 18 21:12:56 2013 |
Manasa | Update | Locking | Fixed | [Den, Manasa]
TRY & TRX power measurement was |
|
8055
|
Mon Feb 11 13:07:17 2013 |
Max Horton | Update | Summary Pages | Fixed A Calendar Bug | Understanding the Code: Documented
more functions in summary_pages.py.
Since it is very difficult and slow to understand |
|
11480
|
Wed Aug 5 17:15:08 2015 |
Eve | Update | Summary Pages | Fixed ASC Tab | I've fixed the ASC
tab on the summary pages to populate
the graphs with data without causing an error. |
|