| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13542
|
Fri Jan 12 18:22:09 2018 |
gautam | Configuration | Computers | sendmail troubles on nodus | Okay I will port awade's python mailer
stuff for this purpose.
|
|
|
13543
|
Fri Jan 12 19:15:34 2018 |
johannes | Update | DAQ | etmx slow daq chassis | Steve and I removed c1auxex from 1X9 today
to make space for the DAQ chassis. Steve
installed rails for mounting. To install |
|
|
13544
|
Fri Jan 12 20:35:34 2018 |
Udit Khandelwal | Summary | General | 2018/01/12 Summary |
40m Lab CAD
Worked |
|
|
13545
|
Sat Jan 13 02:36:51 2018 |
rana | Configuration | Computers | sendmail troubles on nodus | I think sendmail is required on nodus since
that's how the dokuwiki works. That's
why the dokuwiki was trying to send an email |
|
|
13546
|
Sat Jan 13 03:20:55 2018 |
Koji | Configuration | Computers | sendmail troubles on nodus | I know it, and I don't like it. DokuWiki
seems to allow us to use an external server
for notification emails. That would be the |
|
|
13547
|
Mon Jan 15 11:53:57 2018 |
gautam | Update | IOO | MCautolocker getting stuck | Looks like this problem presisted over
the weekend - Attachment #1 is the wall StripTool
trace for PSL diagnostics, seems like the |
|
|
13548
|
Mon Jan 15 17:36:03 2018 |
gautam | HowTo | Optical Levers | Oplev calibration | Summary:
I
checked the calibration of the Oplevs for
both ITMs, both ETMs and the BS. The table |
|
|
13549
|
Tue Jan 16 11:05:51 2018 |
gautam | Update | PSL | PSL shelf - AOM power connection interrupted | While moving the RefCav to facilitate the
PSL shelf install, I
bumped the power cable to the AOM driver. |
|
|
13550
|
Tue Jan 16 16:18:47 2018 |
Steve | Update | PSL | new PSL shelf in place | [ Johannes, Rana, Mark and Steve ]
On the second trial the shelf was
installed. Plastic cover removed. South end |
|
|
13551
|
Tue Jan 16 21:46:02 2018 |
gautam | Update | PSL | PSL shelf - AOM power connection interrupted | Johannes informed me that he touched up
the PMC REFL camera alignment. I am holding
off on re-soldering the AOM driver power |
|
|
13552
|
Tue Jan 16 21:50:53 2018 |
gautam | Update | ALS | Fiber ALS assay | With Johannes' help, I re-installed
the box in the LSC electronics rack. In the
end, I couldn't find a good solution |
|
|
13553
|
Wed Jan 17 14:32:51 2018 |
gautam | Update | DAQ | Acromag checks |
I take back what I said about the
OSEM PD mon at the meeting - there does seem
to be to be some overall calibration factor |
|
|
13554
|
Wed Jan 17 22:44:14 2018 |
johannes | Update | DAQ | Acromag checks | This happened because there are multiple
ways to scale the raw value of an EPICS channel
to the desired output range. In the CryoLab |
|
|
13555
|
Wed Jan 17 23:36:12 2018 |
johannes | Configuration | General | AS port laser injection | Status of the AS-port auxiliary laser injection
Auxiliary laser with AOM
setup exists, first order diffracted beam |
|
|
13557
|
Thu Jan 18 00:35:00 2018 |
gautam | Update | ALS | Fiber ALS assay | Summary:
I
am facing two problems: |
|
|
13558
|
Fri Jan 19 11:13:21 2018 |
gautam | Update | CDS | slow machine bootfest | c1psl, c1susaux,
and |
|
|
13559
|
Fri Jan 19 11:34:21 2018 |
gautam | Update | ALS | Fiber ALS assay | I swapped the inputs to the ZHL-3A at the
PSL table - so now the X beat RF signals
from the beat mouth are going through what |
|
|
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 |
|
|
13561
|
Fri Jan 19 20:59:07 2018 |
Udit Khandelwal | Update | General | Solidworks Rendering | Rendered the SOS assembly (D960001) with
correct materials and all and it looks very
nice. Will extend this to the building cad |
|
|
13562
|
Fri Jan 19 23:04:11 2018 |
gautam | Update | ALS | Fiber ALS assay | [rana, kevin, udit, gautam]
quick notes of some discussions
we had today: |
|
|
13563
|
Sat Jan 20 01:20:37 2018 |
gautam | Update | Electronics | Whitening filter D990694 | We use D990694
in various places. Today, Rana alerted me
to an important consideration to be kept |
|
|
13564
|
Sat Jan 20 15:57:11 2018 |
rana | Update | Electronics | Whitening filter D990694 | this
is the note from Hartmut Grote on this
topic from 2004 |
|
|
13565
|
Sun Jan 21 13:11:25 2018 |
johannes | Update | DAQ | Acromag checks | After some research: -the- reason for the
reduced +/- 20,000 swing in raw values is
a default setting for having support for |
|
|
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 |
|
|
13568
|
Tue Jan 23 01:33:23 2018 |
gautam | Update | Electronics | Whitening filter D990694 | After discussing with Koji, we looked at
the aLIGO
incarnation of this board. Interestingly, |
|
|
13569
|
Tue Jan 23 01:56:18 2018 |
gautam | Update | Electronics | Teledyne AP1053 | I have acquired 5 pieces of the Teledyne
AP1053 from Koji - these are now at the
40m. I will determine an appropriate location |
|
|
13570
|
Tue Jan 23 16:02:05 2018 |
Steve | Configuration | SEI | load cells | 1500 and 2000 lbs load cells arrived from
MIT to measure the vertical loads on each
leg. |
|
|
13571
|
Wed Jan 24 00:33:31 2018 |
gautam | Update | ALS | Fiber ALS assay | I did some work on the PSL table today.
Main |
|
|
13572
|
Wed Jan 24 00:48:47 2018 |
gautam | Update | Electronics | Whitening filter D990694 | I plan to do some characterization of this
problem. The plan is to use THD
as a metric for whether we are having hidden |
|
|
13573
|
Wed Jan 24 00:58:59 2018 |
gautam | Update | ALS | X Green PDH modulation depth | On Friday, while Udit and I were doing
some characterization of the EX+PSL IR beat
at the LSC rack, I noticed that there were |
|
|
13574
|
Wed Jan 24 10:45:14 2018 |
gautam | Update | ALS | Fiber ALS assay | I was looking into the physics of polarization
maintaining fibers, and then I was trying
to remember whether the fibers we use are |
|
|
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 |
|
13576
|
Wed Jan 24 18:12:31 2018 |
johannes | Update | DAQ | ETMX auxiliary DAQ work | I replaced the two
remaining D-Sub M/M cables that still had
gender-changers with M/F |
|
|
13578
|
Wed Jan 24 19:17:06 2018 |
johannes | Update | DAQ | c1auxex2 startup behavior | I compiled the burt
binaries on c1auxex2
which took a little fiddling with dependencies |
|
|
13580
|
Wed Jan 24 23:13:30 2018 |
johannes | Update | DAQ | c1auxex2 startup behavior |
Quote:
|
|
|
13581
|
Thu Jan 25 08:27:25 2018 |
Steve | Update | PEM | earthquakes | M4 local earthquake at 10:10 UTC
There is no sign of damage.
....here is an other one.........M5.8 |
|
|
13582
|
Thu Jan 25 12:41:18 2018 |
Kira | Update | PEM | Seismometer can insulation test | We started the actual heating test today
and it seems to be working so far. Hoping
to heat it to about 40C. We also set |
|
|
13583
|
Thu Jan 25 13:18:41 2018 |
gautam | Update | ALS | Fiber ALS assay | I was looking at this a little more closely.
As I understand it, the purpose of the audio
differential IF amplifier is: |
|
|
13584
|
Thu Jan 25 14:58:20 2018 |
Kira | Update | PEM | Seismometer can insulation test | After almost 3 hours the temperature rose
by about 3.5C. Seems a bit slow, but we can
drive it more if necssary. The heating curve |
|
|
13585
|
Thu Jan 25 16:39:09 2018 |
Kira | Update | PEM | Seismometer can insulation test | The final temperature reached in about
4.5 hours is 30.5C, while the starting temperature
is about 24C. I can't seem to screenshot |
|
|
13586
|
Thu Jan 25 23:59:14 2018 |
gautam | Update | ALS | Fiber ALS assay | I tried to couple the PSL pickoff into
the fiber today for several hours, but got
nowhere really, achieved a maximum coupling |
|
|
13587
|
Fri Jan 26 20:03:09 2018 |
gautam | Update | ALS | Fiber ALS assay | I think part of the problem was that the
rejected beam from the PBS was not really
very Gaussian - looking at the spot on the |
|
|
13588
|
Tue Jan 30 10:22:20 2018 |
Steve | Update | VAC | RGA scan at day 175 | pd80b rga scan at 175 day. IFO pressure
7.3e-6 Torr-it
Condition: vacuum normal, annuloses |
|
|
13589
|
Wed Jan 31 15:27:55 2018 |
gautam | Update | SUS | SUS MEDM master screens updated | I've often gotten confused by the labeling
on the SUS MEDM screens about the coil "Vmon"
fields - they're labelled as "30 |
|
|
13590
|
Wed Jan 31 15:29:44 2018 |
johannes | Update | DAQ | PSL acromag server moved from megatron to c1auxex2 | I moved the epics IOC server process for
the single Acromag ADC that monitors the
PSL signals from megatron to c1auxex2. |
|
|
13591
|
Wed Jan 31 15:45:22 2018 |
gautam | Update | ALS | Fiber ALS assay | Attachment #1 shows the current situation
of the PSL table IR pickoff. It isn't
the greatest photo but it's hard to get |
|
|
13592
|
Wed Jan 31 15:46:05 2018 |
Steve | Update | safety | crane inspection | Annual crane inspection with load tests
is scheduled for Monday, Feb 5, 2018 from
8 to 11:30am |
|
|
13593
|
Wed Jan 31 16:29:42 2018 |
gautam | Update | ALS | Modulation depths | I used the Beat
Mouth to make a quick |
|
|
13594
|
Wed Jan 31 16:33:53 2018 |
gautam | Update | ALS | ALS electronics at LSC rack | [steve,
gautam]
We installed some |
|