| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
47
|
Thu May 27 15:42:06 2010 |
Aidan | Electronics | Hartmann sensor | Hartmann sensor with just the base piece | I switched in just the base piece of the
Hartmann sensor. The cooling fins are removed.
I bolted the camera securely to the base |
|
|
29
|
Tue May 4 13:35:13 2010 |
Aidan | Computing | Hartmann sensor | Hartmann temperature channels in frame builder | I've added the digitizer and sensor
board temperature readings from the HWS to
the frames. This was done in the following |
|
|
78
|
Mon Jul 26 18:47:12 2010 |
James K | Misc | Hartmann sensor | Hex Grid Analysis Errors and Thermal Defocus Noise | My previous eLog details how the noise
in Hartmann Sensor defocus measurements appears
to vary with ambient light. New troubleshooting |
|
|
256
|
Thu Jan 12 11:52:47 2023 |
Koji | Lab Infrastructure | General | How to move the large engine hoist through the narrow door | How to move the large engine hoist through
the narrow door
See http://nodus.ligo.caltech.edu:8080/Mariner/122 |
|
|
101
|
Tue Nov 23 06:15:08 2010 |
Won | Computing | Hartmann sensor | Image folder structure | Attached below is a diagram that describes
the organisation of image folders that I
am using at the moment with Run_initialize |
|
|
72
|
Fri Jul 23 12:38:58 2010 |
Aidan | Computing | Hartmann sensor | Images for Dalsa | Attached are the background and 80% illumination
(~uniform spatially uniform) images that
Dalsa requested. |
|
|
20
|
Tue Apr 20 18:05:24 2010 |
Aidan | Computing | Hartmann sensor | Images off the Dalsa Camera in CentOS | I installed CentOS on the machine
with the EDT frame-grabber. I then installed
the frame-grabber software from the CD. |
|
|
190
|
Wed Oct 11 20:19:06 2017 |
Jon Richardson | Lab Infrastructure | Hartmann sensor | Initial Characterization of the SRM Adaptive Wavefront Control | Today I made the first characterization
measurements of the mocked-up adaptive wavefront
control system planned for the signal recycling |
|
|
231
|
Mon Jul 22 09:44:21 2019 |
Jon | Lab Infrastructure | Computing | Installed Amplifying VGA Splitter | The VGA signal outputted by the multiplexer
is too weak to drive two monitors. This has
required video cables to be manually switched |
|
|
23
|
Thu Apr 22 08:20:51 2010 |
Aidan | Computing | Hartmann sensor | Installed MATLAB and Windows XP Virtualization on Hartmann machine | I installed a Windows XP virtualization
on the Hartmann machine. It can be accessed
from the desktop, or by running |
|
|
192
|
Fri Oct 13 18:35:29 2017 |
Jon Richardson | Computing | Electronics | Installed Maku Ethernet CCD Camera | I installed the Maku Gigabit CCD camera
driver software on the hws-ws machine. The
camera viewer can be opened from the terminal |
|
|
194
|
Tue Oct 24 10:19:53 2017 |
Jon Richardson | Computing | Electronics | Installed Maku Ethernet CCD Camera | There is an SDK for the camera with compiled
examples. For a really quick image grab from
the command line, use the following: |
|
|
195
|
Tue Oct 24 15:05:57 2017 |
Jon Richardson | Computing | Electronics | Installed a Realtime Beam Profiler for the Mako CCD Camera | Aidan found a C demo code for acquiring
a single image from the Mako CCD camera and
saving it to disk (SynchronousGrab -- aliased |
|
|
134
|
Tue Apr 12 22:30:59 2011 |
Aidan | Computing | EPICS | Installed the thermistor on the Hartmann plate/created MEDM ADC Input screen | I restarted the Athena box and created
an MEDM screen that shows the 8 differential
input voltages next to their corresponding |
|
|
21
|
Wed Apr 21 06:49:51 2010 |
Aidan | Computing | Frame Grabber | Installing CentOS 5.3 and the EDT frame-grabber - Part 1 | Yesterday, I installed CentOS 5.3 on the
Gateway GT5482 machine that housed the EDT
frame-grabber. |
|
|
71
|
Fri Jul 23 12:33:51 2010 |
Aidan | Computing | Hartmann sensor | Invar clamp scatter | I illuminated the Hartmann sensor with
the output of a fiber placed ~1m away.
I noticed that the illumination was |
|
|
215
|
Tue Jul 10 17:49:13 2018 |
Aria Chaderjian | Laser | General | July 10, 2018 | Went down to the lab and showed Rana the
setup. He's fine with me being down there
as long as I let someone know. He also recommended |
|
|
216
|
Thu Jul 12 18:48:21 2018 |
Aria Chaderjian | Laser | General | July 12, 2018 | The beam reflecting off the test mirror
was clipping the lens between gold mirror
and test mirror, so I reconfigured some of |
|
|
217
|
Fri Jul 13 16:42:50 2018 |
Aria Chaderjian | Laser | General | July 13, 2018 | The table is set up. The HWS and SLED were
moved slightly, and a minimal angle between
the test mirror and HWS was achieved. |
|
|
218
|
Mon Jul 23 10:04:19 2018 |
Aria Chaderjian | Laser | General | July 20, 2018 | With Jon's help, I changed the setup
to include a mode-matching telescope built
from the f=60mm (1 inch diameter) lens and |
|
|
219
|
Tue Jul 24 16:52:44 2018 |
Aria Chaderjian | Laser | General | July 23, 2018 and July 24, 2018 | Attached the grid array of the HWS.
Applied voltage (5V, 7V, 9.9V,
14V) to the heater pad and took measurements |
|
|
136
|
Sun Apr 17 14:59:36 2011 |
Aidan | Things to Buy | Delivery Note | L-Com patch panel, Newport lenses, Thorlabs fibers delivery notes | |
|
|
104
|
Tue Jan 25 16:38:16 2011 |
Aidan | Electronics | Pre-amplifier | L1 TCSY ISS Board transfer function | I measured the AC and DC channel
transfer functions of the eLIGO L1 TCSY ISS
board for PD1 and PD2. The gain is quite |
|
|
110
|
Thu Feb 24 10:23:31 2011 |
Christopher Guido | Laser | Laser | LTG initial noise | Cheryl Vorvick, Chris Guido, Phil Willems
Attached is a PDF with some initial
noise testing. There are 5 spectrum plots |
|
|
107
|
Fri Feb 18 14:53:50 2011 |
Phil | Laser | Laser | LTG laser delivering specified power | I got the LTG CO2 laser to deliver 50.02W
as measured by the Thorlabs 200W power head
today. This required running the Glassman |
|
|
74
|
Sat Jul 24 10:50:14 2010 |
Aidan | Electronics | Hartmann sensor | Lab Temperature and HWS temperature: pre-indium | Hour-long trend puts the lab temperature
at 19.51C
Dalsa temperature: |
|
|
250
|
Wed Apr 27 11:41:53 2022 |
Aidan | Lab Infrastructure | General | Lab clean-up to get ready for PD testing in old TCS Lab | We (Aidan, Koji, Radhika, Aaron) partially
tidied up the TCS Lab. The front table is
clean and ready to recieve PD tesitng optics, |
|
|
245
|
Mon Jul 26 16:23:03 2021 |
Aidan | Misc | Flood | Lab flooded from broken pipe leading to sump room |
Koji: QIL/TCS entrance flooding. |
|
|
248
|
Wed Aug 25 11:28:56 2021 |
Aidan | Misc | Flood | Lab flooded from broken pipe leading to sump room | 11:29AM - Lab has flooded again this morning.
I'm calling PMA. Looks to be the same
issue as before. |
|
|
249
|
Thu Aug 26 09:00:39 2021 |
Aidan | Misc | Flood | Lab flooded from broken pipe leading to sump room | Some photos of water and clean-up.
Summary: I came into the lab around
11:30AM and found water on the floor in the |
|
|
230
|
Tue Jun 18 19:05:16 2019 |
Jon | Lab Infrastructure | General | Large optical table cleared and set up for point absorbers | Aidan and I continued the lab clean-up
today. There's still more to do, but
we did fully clear the large optical table |
|
|
233
|
Mon Jul 22 18:46:23 2019 |
Edita Bytyqi | Lab Infrastructure | | Laser-Lens-HWS Setup | Today, I set up a system consisting of
the 520 nm laser, a 2'' mirror and
two lenses of focal lengths f1 = 40 cm and |
|
|
251
|
Wed May 11 19:46:21 2022 |
Aidan, Radhika, Jordan | Lab Infrastructure | Vacuum chamber | Leak cleaning on IR labs vacuum chamber - suspects | [Aidan, Jordan, Radhika]
Radhika and Jordan identified some
particulates (hair and flecks of foil) on |
|
|
79
|
Tue Jul 27 08:31:10 2010 |
Aidan | Electronics | SLED | Long term SLED test - Day 1 | The measurement from the on-board
PD of the Superlum SLED seems to be falling.
This effect started around 5PM last night |
|
|
184
|
Wed Apr 26 15:29:25 2017 |
Aidan | Electronics | Hartmann sensor | Long term test of fiber launcher | I've started a long-term measurement
of the HWS fiber-launcher. I'm interested
in seeing how stable the output is. The HWS |
|
|
76
|
Mon Jul 26 09:42:30 2010 |
Aidan | Computing | SLED | Long term test on SLED started - Day 0 | I set up the SLED to test its long
term performance. The test began, after a
couple of false starts, around 9:15AM this |
|
|
207
|
Thu Feb 8 15:42:13 2018 |
Aidan | Laser | Laser | Low power CO2 laser [400mW] beam size measurement | I did a beam size/beam propagation measurement
of the low power CO2 laser (Access Laser
L3, SN:154507-154935) |
|
|
117
|
Tue Mar 1 11:19:34 2011 |
Aidan | Things to Buy | Delivery Note | MFF001 flipper mirror has arrived | The Thorlabs MFF001 flipper mirror
recommended by Bram has arrived. The delivery
note is attached. |
|
|
196
|
Wed Oct 25 15:34:14 2017 |
Jon Richardson | Computing | Frame Grabber | Mako CCD Camera Code is Fixed | I fixed a bug in how the raw Mako CCD camera
images are being read into memory. The bmp
files turn out to have a block memory layout |
|
|
144
|
Tue May 10 00:55:08 2011 |
Won | Computing | Hartmann sensor | Matlab Compiler and Matlab Compiler Runtime |
I have spent some time with Matlab
Compiler and Matlab Compiler Runtime (MCR). |
|
|
147
|
Wed May 11 18:44:54 2011 |
Aidan | Computing | Hartmann sensor | Matlab Compiler and Matlab Compiler Runtime | Installing MCR
I located the MCRInstaller on our
distribution of MATLAB on the Ubuntu machine |
|
|
226
|
Fri Apr 12 17:40:58 2019 |
aaron | Lab Infrastructure | General | Measurements for Bake Station | I drew up one way we could set up the three
available bake ovens in the TCS lab on the
single oil pump. |
|
|
227
|
Mon Apr 15 08:12:58 2019 |
aaron | Lab Infrastructure | General | Measurements for Bake Station | My preference is to have tubes back towards
the wall where possible. We might be able
to drill a large diameter hole in the table |
|
|
193
|
Mon Oct 23 19:02:42 2017 |
Jon Richardson | Laser | Hartmann sensor | Mitigated Heating Beam Losses | There were known to be huge (65%) heating
beam power losses on the SRM AWC table, somewhere
between the CO2 laser and the test optic. |
|
|
126
|
Fri Mar 11 13:11:33 2011 |
Aidan | Lab Infrastructure | Delivery Note | More Bosch connectors have arrived | See attached delivery note ... |
|
|
127
|
Wed Mar 16 15:05:47 2011 |
Aidan | Lab Infrastructure | Delivery Note | More Bosch equipment has arrived | 30mm T-junctions, grounding straps and
T-slot covers have arrived
|
|
|
118
|
Tue Mar 1 11:21:37 2011 |
Aidan | Things to Buy | Delivery Note | More Bosch framing parts - angle connectors | Another box of Bosch framing parts
arrived today. The delivery note is attached. |
|
|
236
|
Mon Jul 29 18:53:16 2019 |
Edita Bytyqi | Lab Infrastructure | Optics | Mounted Reflector and Heater | Since we set up the 2-lens system focusing
the laser beam to the CCD, the next step
was to mount the spherical reflector (31 |
|
|
232
|
Mon Jul 22 18:44:53 2019 |
Edita Bytyqi | Things to Buy | General | Need to Order Gloves | Small/Medium size gloves need to be ordered
in order to handle the optics carefully. |
|
|
235
|
Thu Jul 25 09:13:36 2019 |
Jon | Things to Buy | General | Need to Order Gloves | New gloves are ordered for the TCS and
QIL labs. They arrive tomorrow (Friday).
|
|