| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13099
|
Fri Jul 7 09:03:40 2017 |
Steve | Summary | History | as it was in 1994 |
|
|
|
13116
|
Thu Jul 13 16:10:34 2017 |
Kaustubh | Summary | Computer Scripts / Programs | Cavity Scan Simulation Code | The code
to produce a cavity scan simulation and then
fitting the data and re-evaluating the initiallt |
|
|
13126
|
Wed Jul 19 12:47:43 2017 |
Steve | Summary | SUS | oplev laser summary updated | 1103P, sn P893518 of 2013 vintage
is dead at the sus fiber demo
|
|
|
13128
|
Wed Jul 19 18:24:15 2017 |
rana | Summary | SUS | oplev laser summary updated | The $1000 HeNe should not be used for illuminating
fibers.
You should purchase these (total |
|
|
13129
|
Fri Jul 21 08:05:07 2017 |
Steve | Summary | SUS | red, blue, green laser diodes ordered | Also ordered 1 ea.
Blue
20mW |
|
|
13131
|
Fri Jul 21 19:44:58 2017 |
Naomi | Summary | Computer Scripts / Programs | Using PyKat to run Finesse | I have been working on using PyKat to run
Finesse. There appear to be several ways
to run an equivalent simulation using Finesse: |
|
|
13154
|
Mon Jul 31 20:35:42 2017 |
Koji | Summary | Computers | Chiara backup situation summary | Summary
- CDS Shared files system: backed
up |
|
|
13159
|
Wed Aug 2 14:47:20 2017 |
Koji | Summary | Computers | Chiara backup situation summary | I further made the burt snapshot directories
compressed along with ELOG
11640. This freed up additional ~130GB. |
|
|
13183
|
Thu Aug 10 14:13:23 2017 |
Kira | Summary | PEM | temperature sensor | Goal is to build a temperature sensor accurate
to 1 mK. Schematic is shown below. This does
not take into account the DC gain that occurs. |
|
|
13188
|
Thu Aug 10 21:22:06 2017 |
rana | Summary | PEM | temperature sensor |
Should we use the AD590 or the
AD592? They're sort of the same, but
have slightly different packages and specs.
Given |
|
|
13209
|
Tue Aug 15 11:50:21 2017 |
Kira | Summary | PEM | temp sensor packaging/mount | For the final packaging/mounting of the
sensor to the seismometer, I have thought
of two options. |
|
|
13235
|
Mon Aug 21 20:11:25 2017 |
johannes | Summary | General | Loss measurements plan | There are three methods we (will soon)
have available to evaluate the round-trip
dissipative losses in the arms that do not |
|
|
13236
|
Mon Aug 21 21:26:41 2017 |
gautam | Summary | General | Loss measurements plan | In case you want to use it, I had profiled
the Lightwave NPRO sometime back, and
we were even using it as the AUX X laser |
|
|
13241
|
Tue Aug 22 16:56:54 2017 |
johannes | Summary | General | AS laser existing components inventory | I surveyed the lab today to see what we
may need to buy for the AS laser setup.
We |
|
|
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 |
|
|
|
13269
|
Tue Aug 29 15:41:17 2017 |
Kira | Summary | PEM | heater circuit | I worked with Kevin and Gautam to create
a heater circuit. The first attachment is
Kevin's schematic of the circuit. The |
|
|
13272
|
Wed Aug 30 06:45:32 2017 |
Kevin | Summary | PEM | New Heater Circuit | I changed the heater circuit described
in this
elog to a current sink. The new and old |
|
|
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. |
|
|
13279
|
Thu Aug 31 00:46:57 2017 |
rana | Summary | CDS | allegra -> Scientific Linux 7.3 | I made a
'LiveCD' on a 16 GB USB stick using
this command after the GUIs didn't work |
|
|
13292
|
Tue Sep 5 09:47:34 2017 |
Kira | Summary | PEM | heater circuit calculations | I decided to calculate the fluctuation
in power that we will have in the heater
circuit. The resistors we ordered have 50 |
|
|
13294
|
Tue Sep 5 16:37:47 2017 |
Gabriele | Summary | LSC | Improved PRMI deep learning reconstruction | This is an update on the results already
presented earlier (refer to elog 13274 for |
|
|
13304
|
Fri Sep 8 12:08:32 2017 |
Gabriele | Summary | LSC | Good reconstruction of PRMI degrees of freedom with deep learning | Introduction
This is an update
of my previous reports on applications of
deep learning to the reconstruction of PRMI |
|
|
13365
|
Fri Oct 6 12:56:40 2017 |
gautam | Summary | LSC | RTCDS NN | [gabriele, gautam]
Gabriele had prepared a C code
implementation of his NN for MICH/PRCL state |
|
|
13383
|
Tue Oct 17 17:53:25 2017 |
jamie | Summary | LSC | prep for tests of Gabriele's neural network cavity length reconstruction | I've been preparing for testing Gabriele's
deep
neural network MICH/PRCL reconstruction. |
|
|
13390
|
Wed Oct 18 12:14:08 2017 |
jamie | Summary | LSC | prep for tests of Gabriele's neural network cavity length reconstruction |
|
|
|
13395
|
Thu Oct 19 15:42:03 2017 |
jamie | Summary | LSC | MICH/PRCL reconstruction neural network running on c1lsc | Gabriele's
PRCL/MICH reconstruction neural network is
now running on c1lsc. |
|
|
13400
|
Tue Oct 24 20:14:21 2017 |
jamie | Summary | LSC | further testing of c1dnn integration; plugged in to DAQ | In order to try to isolate CPU6 for the
c1dnn neural network reconstruction model,
I set the CPUAffinity in /etc/systemd/system.conf |
|
|
13401
|
Wed Oct 25 09:32:14 2017 |
Gabriele | Summary | LSC | further testing of c1dnn integration; plugged in to DAQ |
|
|
|
13405
|
Sun Oct 29 16:40:17 2017 |
rana | Summary | Computers | disk cleanup | Backed up all the wikis. Theyr'e in
wiki_backups/*.tar.xz (because xz -9e gives
better compression than gzip or bzip2) |
|
|
13411
|
Mon Nov 6 18:22:48 2017 |
jamie | Summary | LSC | current procedure for running c1dnn code | This is the current procedure to start
the c1dnn model:
|
|
|
13421
|
Thu Nov 9 10:51:37 2017 |
gautam | Summary | LSC | current procedure for compiling and installing c1dnn code | Jamie pointed out that the compile and
install instructions are different for c1dnn:
|
|
|
13425
|
Fri Nov 10 18:57:41 2017 |
rana | Summary | Electronics | Ithaca 1201 vs. SR560 | I characterized the black
Ithaca 1201 pre-amp that we had sitting
in the racks. It works fine and the input |
|
|
13427
|
Tue Nov 14 16:02:43 2017 |
Kira | Summary | PEM | seismometer can testing | I made a model for our seismometer can
using actual data so that we know approximately
what the time constant should be when we |
|
|
13460
|
Fri Dec 1 17:09:29 2017 |
Udit Khandelwal | Summary | General | | Current objectives and statuses:
CAD Model of 40m lab (facility,
chambers, invacuum components etc)
Status: |
|
|
13472
|
Wed Dec 13 17:46:08 2017 |
Udit Khandelwal | Summary | General | Summary of Current Tasks | 40m
Lab CAD
1. 40m_bldg.dwg has 2D drawing |
|
|
13484
|
Fri Dec 15 18:24:46 2017 |
rana | Summary | Optical Levers | PRM | Today Angelina and I looked at the PRM
OL with an eye towards installing a 2nd QPD.
We want to try out |
|
|
13489
|
Wed Dec 20 00:43:58 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I looked into the DAC noise
contribution to the noise budget for homodyne
detection at the 40m. DAC noise is currently |
|
|
13490
|
Thu Dec 21 19:25:48 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I redid our calculations, and
the updated plot of squeezing as a function
of DAC current noise per coil is shown in |
|
|
13491
|
Fri Dec 22 09:40:19 2017 |
rana | Summary | General | DAC noise contribution to squeezing noise budget |
Should not count the ITMs. On those
we can use big resistors / filters to cut
out the noise.
For the initial |
|
|
13494
|
Sun Dec 31 12:43:50 2017 |
rana | Summary | Electronics | SR560: reworking | I have
ordered some LSK389A (in both the SOIC-8
and TO-71 packages) to replace the SR560's |
|
|
13516
|
Mon Jan 8 20:50:01 2018 |
rana | Summary | Electronics | SR560: reworking | I replaced the NPD5565 with a LSK389 (SOIC-8
with DIP adapter). There was a noise reduction
of ~30%, but not nearly as much as I expected. |
|
|
13544
|
Fri Jan 12 20:35:34 2018 |
Udit Khandelwal | Summary | General | 2018/01/12 Summary |
40m Lab CAD
Worked |
|
|
13560
|
Fri Jan 19 15:22:19 2018 |
Udit Khandelwal | Summary | General | 40m CAD update 2018/01/19 | 40m CAD Project
All parts will be now named
according to the numbering system in this |
|
|
13566
|
Mon Jan 22 12:48:48 2018 |
Koji | Summary | General | Beat setup for aLIGO EOM test | I'm planning to construct a beat setup
between the PSL and AUX beams. I am going
to make it in the area shown in a blue square |
|
|
13567
|
Mon Jan 22 20:54:58 2018 |
Koji | Summary | General | AUX-PSL beat setup | The beat setup has been made on the PSL
table. The BS and the PD were setup. The
beat was found at 29.42degC and 50.58degC |
|
|
13575
|
Wed Jan 24 13:55:04 2018 |
Kira | Summary | PEM | Seismometer can insulation test | Gautam and I set up the insulated seismometer
can in the lab today. I had previously wired
up the two heaters I placed onto the sides |
6x |
|
13601
|
Fri Feb 2 21:12:46 2018 |
Udit Khandelwal | Summary | General | Summary - 2018/02/02 | Tip-Tilt
Suspension CAD:
Discussed with Koji about motivation |
|