| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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: |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
13558
|
Fri Jan 19 11:13:21 2018 |
gautam | Update | CDS | slow machine bootfest | c1psl, c1susaux,
and |
|
|
13557
|
Thu Jan 18 00:35:00 2018 |
gautam | Update | ALS | Fiber ALS assay | Summary:
I
am facing two problems: |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
13544
|
Fri Jan 12 20:35:34 2018 |
Udit Khandelwal | Summary | General | 2018/01/12 Summary |
40m Lab CAD
Worked |
|
|
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 |
|
|
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.
|
|
|
13541
|
Fri Jan 12 18:08:55 2018 |
gautam | Update | General | pip installed on nodus | After much googling, I figured out how
to install pip on SL7:
|
|
|
13540
|
Fri Jan 12 16:01:27 2018 |
Koji | Configuration | Computers | sendmail troubles on nodus | I personally don't like the idea of
having sendmail (or something similar
like postfix) on a personal server as it |
|
|
13539
|
Fri Jan 12 12:31:04 2018 |
gautam | Configuration | Computers | sendmail troubles on nodus | I'm having trouble getting the sendmail
service going on nodus since the Christmas
day power failure - for some reason, it |
|
|
13538
|
Fri Jan 12 10:26:24 2018 |
Steve | Update | PSL | PSL shelf work schedule | Measurements for good fit were made. The
new shelf will be installed on next Tuesday
at 2pm |
|
|
13537
|
Fri Jan 12 10:02:05 2018 |
johannes | Update | DAQ | etmx slow daq chassis |
Quote:
|
|
|
13536
|
Thu Jan 11 21:09:33 2018 |
gautam | Update | CDS | revisiting Acromag | We'd like to setup the recording of
the PSL diagnostic connector Acromag channels
in a more robust way - the objective is to |
|
|
13535
|
Thu Jan 11 20:59:41 2018 |
gautam | Update | DAQ | etmx slow daq chassis | Some suggestions of checks to
run, based on the rightmost colum in the
wiring diagram here |
|
|
13534
|
Thu Jan 11 20:51:20 2018 |
gautam | Update | ALS | Fiber ALS assay | After labeling cables I would disconnect,
I pulled the box out of the LSC rack. Attachment
#1 is a picture of the insides of the box |
|
|
13533
|
Thu Jan 11 18:50:31 2018 |
gautam | Update | IOO | MCautolocker getting stuck | I've noticed this a couple of times
today - when the autolocker runs the |
|
|
13532
|
Thu Jan 11 14:47:11 2018 |
Steve | Update | PSL | shelf work for tomorrow | I have just received the scheduling of
the PSL self work for tomorrow. Gautam and
I agreed that if it is needed I will shut |
|
|
13531
|
Thu Jan 11 14:22:40 2018 |
gautam | Update | ALS | Fiber ALS assay | I did a cursory check of the ALS signal
chain in preparation for commissioning the
IR ALS system. The main elements of this |
|
|
13530
|
Thu Jan 11 09:57:17 2018 |
Steve | Update | DAQ | acromag at ETMX | Good going Johannes!
|
|
|
13529
|
Wed Jan 10 22:24:28 2018 |
johannes | Update | DAQ | etmx slow daq chassis | This evening I transitioned the slow controls
to c1auxex2.
Disconnected satellite |
|
|
13528
|
Wed Jan 10 22:19:44 2018 |
rana | Update | SUS | ETMX DC alignment | Best to just calibrate the ETM OL in the
usual way. I bet the OSEM outputs have a
cal uncertainty of ~50% since the input matrix |
|
|
13527
|
Wed Jan 10 18:53:31 2018 |
gautam | Update | SUS | ETMX DC alignment | I should've put in the SUSPIT and SUSYAW
channels in the previous screenshot. I re-aligned
ETMX till I could see IR flashes in the arm, |
|
|
13526
|
Wed Jan 10 16:27:02 2018 |
Steve | Configuration | SEI | load cell for weight measurement | We could use similar
load cells to make the actual
weight measurement on the Stacis legs. This |
|
|
13525
|
Wed Jan 10 15:25:43 2018 |
johannes | Configuration | Computer Scripts / Programs | autoburt making backups again |
Quote:
|
|
|
13524
|
Wed Jan 10 14:17:57 2018 |
johannes | Configuration | Computer Scripts / Programs | autoburt no longer making backups | I was looking into setting up autoburt
for the new c1auxex2 and found that it stopped
making automatic backups for all machines |
|
|
13523
|
Wed Jan 10 12:42:27 2018 |
gautam | Update | SUS | ETMX DC alignment | I've been observing this for a few
days: ETMX's DC alignment seems to drift
by so much that the previously |
|
|
13522
|
Wed Jan 10 12:24:52 2018 |
gautam | Update | CDS | slow machine bootfest | MC autolocker got stuck (judging by wall
StripTool traces, it has been this way for
~7 hours) because |
|
|
13521
|
Wed Jan 10 09:49:28 2018 |
Steve | Update | PEM | the rat is back | Five mechcanical traps set inside of boxes.
Red-white warning tape on top of each.
|
|
|
13520
|
Tue Jan 9 21:57:29 2018 |
gautam | Update | Optimal Control | Oplev loop tuning | After some more tweaking, I feel like I
may be getting closer to a cost-function
definition that works. |
|
|
13519
|
Tue Jan 9 21:38:00 2018 |
gautam | Update | ALS | ALS recovery |
Aligned IFO to IR.
Ran
dither alignment to maximize arm transmission.
Centered
Oplev reflections onto their respective QPDs |
|
|
13518
|
Tue Jan 9 11:52:29 2018 |
gautam | Update | CDS | slow machine bootfest | Eurocrate key turning reboots today morning
for and |
|
|
13517
|
Tue Jan 9 00:07:03 2018 |
johannes | Update | DAQ | etmx slow daq chassis | All parts received and assembly near complete,
small problem detected because the two DSub
connectors are too close together for two |
|
|
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. |
|
|
13515
|
Sun Jan 7 20:11:54 2018 |
Koji | Update | PonderSqueeze | Displacement requirements for short-term squeezing | In fact, that is my point. If we use signal
recycling instead of resonant sideband extraction,
the "tuning" of the SRC is opposite |
|
|
13514
|
Sun Jan 7 17:27:13 2018 |
gautam | Update | PonderSqueeze | Displacement requirements for short-term squeezing | Maybe you've accounted for this already
in the Optickle simulations - but in Finesse
(software), the "tuning" corresponds |
|
|
13513
|
Sun Jan 7 11:40:58 2018 |
Kevin | Update | PonderSqueeze | Displacement requirements for short-term squeezing | Yes, this SRC detuning is very close to
extreme signal recycling (0° in this
convention), and the homodyne angle is close |
|
|
13512
|
Sun Jan 7 03:22:24 2018 |
Koji | Update | PonderSqueeze | Displacement requirements for short-term squeezing | Interesting. My understanding is that this
is close to signal recycling, rather than
resonant sideband extraction. Is that correct? |
|