ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
201
|
Tue Oct 31 14:37:49 2017 |
Aidan | Computing | DAQ | New Acromag units for AWC experiments - XT1221 ans XT1541 | I set up an Acromag DAC today with the
fixed IP address 10.0.1.56. Last Friday Andrew
and Antonio set up an ADC unit with fixed |
|
|
202
|
Thu Nov 9 14:18:56 2017 |
Aidan | Computing | DAQ | FB4 ip address has changed | We've had trouble logging into FB4.
I access the computer directly in the AWC
lab and found that the IP address had changed |
|
|
203
|
Tue Nov 14 19:08:00 2017 |
Jon Richardson | Computing | Network architecture | Rsync Server for Automatic LDAS Backups | I implemented an access point for LDAS
to pull data from the TCS lab EPICS frame
archive (fb4:/frames) via rsync. The setup |
|
|
204
|
Thu Jan 18 10:09:50 2018 |
Jon Richardson | Laser | General | RIN Measurement of 400 mW CO2 Laser in Progress | The 400 mW CO2 laser on the Hartmann table
is currently configured for a measurement
of its relative intensity noise. It is aligned |
|
|
205
|
Mon Jan 22 10:39:32 2018 |
Jon Richardson | Laser | General | RIN Measurement of 400 mW CO2 Laser in Progress | Attached for reference is the RIN measurement
from the initial data.
|
|
|
206
|
Mon Feb 5 15:08:06 2018 |
Aidan | Computing | DAQ | Frame builder clock is totally wrong | The framebuilder on FB4 thinks the current
time is 26-Jan-2018 6:18AM UTC. The date
command on FB4 yields the correct date and |
|
|
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) |
|
|
208
|
Fri May 11 12:32:21 2018 |
Aidan | Laser | Hartmann sensor | HWS green LED fiber launcher | [Aidan, Marie]
We tested the output of the fiber
launcher D1800125-v3. We were using a 6mm |
|
|
209
|
Fri May 11 16:18:47 2018 |
Aidan | Laser | Hartmann sensor | HWS green LED fiber launcher | And here's the output of the fiber
launcher when I fixed it at 313mm from the
camera, attached an iris to the front and |
|
|
210
|
Wed May 16 16:47:29 2018 |
Aidan | Laser | Hartmann sensor | HWS green LED fiber launcher - D1800125-v5_SN01 | Here is the output from D1800125-v5_SN01.
|
|
|
211
|
Fri May 18 16:32:37 2018 |
Aidan | Laser | Hartmann sensor | HWS green LED fiber launcher - D1800125-v5_SN01 | Title was wrong - this is actually config
[12,2,4,125]
|
|
|
212
|
Wed May 30 18:50:05 2018 |
awade | Computing | DAQ | Rebooted fb4 | Time was still off by nine days as of yesterday.
I tried rebooting remotely to see if time
would correct to system clock. It didn't |
|
|
213
|
Wed May 30 18:59:49 2018 |
awade | Computing | DAQ | FB4 ip address has changed | Maybe you've resolved this now. I moved
the DHCP allocation to 10.0.1.160 and
above around that time because a bunch of |
|
|
214
|
Thu Jun 21 17:12:38 2018 |
Aidan | Laser | Hartmann sensor | Two inch PBS from Edmund Optics - effect on ETM HWS transmission | I'm considering the 86-711 2"
532nm PBS from Edmund Optics for the ETM
HWS at the sites. |
|
|
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 |
|
|
220
|
Fri Aug 3 15:46:12 2018 |
Aria Chaderjian | Laser | General | August 3, 2018 | To the best of my ability, calculated the
magnification of the plane of the test optic
relative to the HWS (2.3) and input this |
|
|
221
|
Thu Aug 16 11:52:27 2018 |
Aidan | Computing | DAQ | Added AWC thermocouple reader back to acromag1 |
Thermcouple reader is plugged into
an Acromag ADC (10.0.1.55)
acromag1
is now reading this in:
~/modbus/iocBoot/iocTest/test_acromag.cmd |
|
|
222
|
Wed Oct 17 16:17:45 2018 |
awade, Aidan | Computing | DAQ | Added AWC thermocouple reader back to acromag1 | Acromag IOC process was removed from PSL
lab acromag1 computer a few months ago.
Aidan needs them again but it would be better |
|
|
223
|
Fri Oct 26 09:49:47 2018 |
Aidan | Misc | Optics | Starting 80C cure of epoxy | I've started an 80C cure of two materials
bonded by EPOTEK 353ND. The objective is
to see (after curing) how much the apparent glass |
|
|
224
|
Tue Dec 4 16:57:08 2018 |
Aidan | Computing | Hartmann sensor | Updated GIT version of HWS code | I changed the HWS code to the new git.ligo
HWS version.
Object files are in ~/hws
scripts |
|
|
225
|
Fri Feb 8 10:48:33 2019 |
Aidan | Lab Infrastructure | General | Water damage repair work in the TCS Lab | Caltech Facilities has determined that
the walls in the SE corner of the TCS Lab
in West Bridge were water damaged during |
|
|
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 |
|
|
228
|
Thu May 23 11:36:49 2019 |
agupta | Lab Infrastructure | Borrowed | Borrowed Label Maker | I have borrowed TCS's label maker in
CTN for few days. If you need it, you can
take it from the top of blue cabinets. |
|
|
229
|
Mon Jun 17 20:29:34 2019 |
Jon | Lab Infrastructure | Computing | Server rack cleaned up, new workstation installed | In anticipation of the point absorber SURF
project, I cleaned up the server rack and
installed a new workstation today. |
|
|
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 |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
234
|
Wed Jul 24 16:25:13 2019 |
Edita Bytyqi | Lab Infrastructure | Optics | Updated 2-lens setup | The previous 2-lens setup focused the beam
to a tight spot, however due to the divergence
angle of the laser beam, a significant amount |
|
|
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).
|
|
|
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 |
|
|
237
|
Thu Aug 1 15:20:39 2019 |
Edita Bytyqi | Lab Infrastructure | Optics | Reflector Mount and DC Supply | Yesterday, we were able to take some data
using the 120 V DC power supply. The reflectors
cut at the focal point and radius were both |
|
|
238
|
Tue Aug 6 19:22:28 2019 |
Jon | Electronics | Computing | QIL NFS server set up | I've started building the NFS server
for the QIL cymac. It's sitting on the
workbench in the TCS lab next to the rack. |
|
|
239
|
Fri Aug 9 20:33:11 2019 |
Jon | Electronics | Ring Heater | Power-regulated heater ready to use | Despite some considerable time spent,
I was not able to get the Omega SCR controllers
working. The first unit definitely arrived |
|
|
240
|
Mon Aug 12 21:15:12 2019 |
Edita Bytyqi | Electronics | | Determining heater/reflector focus | I took images of the heat pattern projected
on a piece of paper produced by the semi-circle
reflector. I used 108V to drive current throught |
|
|
241
|
Fri Aug 16 17:05:14 2019 |
Edita Bytyqi | Electronics | | FLIR Images of new reflector focusing heat | We got 11 new semi-circle cut reflectors
of radius ~3.6 cm. I glued a screw to the
back of one reflector using the same epoxy |
|
|
242
|
Tue Sep 3 10:49:57 2019 |
Aidan | Lab Infrastructure | General | Exhaust duct added for new bake area in TCS lab | Facilities came in on Friday and teed off
a new duct to provide exhaust for the proposed
new vacuum bake area in the TCS Lab. Photos |
|
|
243
|
Wed Oct 30 12:13:14 2019 |
Jon | Misc | Delivery Note | New lab hardware | Ian and I moved some new hardware into
the lab, shown in the below photos. It is
from the shipment of loaned |
|
|
244
|
Tue Jun 15 08:47:27 2021 |
Aidan | Lab Infrastructure | General | Cleaned up HWS table in preparation for lab move | I cleaned up the HWS table in preparation
for replacement with the 4x10 table. We still
need to move the cabinet and get the enclosure |
|
|
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. |
|
|
246
|
Tue Jul 27 08:39:33 2021 |
Aidan | Misc | Flood | Tuesday (27-Jul) morning check - lab looks okay | I checked the lab this morning. It was
dry and there wall was in the same state
as yesterday. |
|
|
247
|
Thu Aug 12 16:13:44 2021 |
Aidan | Lab Infrastructure | Flood | Carpentry shop removed wet plaster sections from the wall - it's drying for a few days | The carpentry shop removed wet plaster
sections from the wall following the flood
(process was gentle scraping of wet plaster |
|
|
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 |
|
|
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, |
|