| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8419
|
Sat Apr 6 09:21:36 2013 |
rana | Update | 40m Upgrading | Not a fan of the new plastic box yet |
1) We still need to drill and
install the thumbscrew latches |
|
|
8418
|
Fri Apr 5 01:28:56 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : populating the table | I started populating the end table; the
TRY path to start with. I found that I need
to redo the cables/electronics layout around |
|
|
8417
|
Fri Apr 5 01:18:34 2013 |
Manasa | Update | 40m Upgrading | Not a fan of the new plastic box yet |
|
|
|
8416
|
Thu Apr 4 17:23:05 2013 |
Steve | Update | 40m Upgrading | ETMY optical table & enclosure is ready for optics |
|
|
|
8415
|
Thu Apr 4 14:37:15 2013 |
Jamie | Configuration | Electronics | putting together a 110 MHz LSC demod board | I'm having Steve order the following:
2x SXBP-100+
2x SCLF-135+ |
|
|
8414
|
Thu Apr 4 13:39:12 2013 |
Max Horton | Update | Summary Pages | Graph Limits | Graph Limits: The limits on graphs
have been problematic. They often reflect
too large of a range of values, usually because |
|
|
8413
|
Thu Apr 4 10:46:54 2013 |
Koji | Summary | LSC | REFL55 error signals | Beautiful double peaks. I don't see the
triple zero-crossings. Is this because you
adjusted the phase correctly (as predicted)? |
|
|
8412
|
Thu Apr 4 10:32:42 2013 |
Gabriele | Summary | LSC | REFL55 error signals | The attached plot shows that also the behaviour
of the REFL11 and 55 signals is qualitatively
equal to the simulation outcome. |
|
|
8411
|
Thu Apr 4 10:12:55 2013 |
Gabriele | Summary | LSC | POP22 and POP110 | I had a look at the POP110 signal, with
the PRMI flashing.
1) The LSCoffset script does not |
|
|
8410
|
Wed Apr 3 23:22:20 2013 |
rana | Update | optical tables | Optical Table Toolboxes Update | There are some tips for how to appy
nail polish on YouTube from MKNails and MissJenFABULOUS.
Their tips on how to prepare the site for |
|
|
8409
|
Wed Apr 3 22:26:51 2013 |
rana | Configuration | Electronics | putting together a 110 MHz LSC demod board | For the 110 MHz demod boards, we
would ideally have a plugin bandpass filter.
If you have some specs in mind, you can email |
|
|
8408
|
Wed Apr 3 19:01:06 2013 |
Albert | Update | optical tables | Optical Table Toolboxes Update |
|
|
|
8407
|
Wed Apr 3 18:41:22 2013 |
Jamie | Configuration | Electronics | putting together a 110 MHz LSC demod board | This SCPQ-150+,
which is surface mount, might also work in
place of the PSCQ-2-120, which is through-mount. |
|
|
8406
|
Wed Apr 3 18:27:03 2013 |
Koji | Update | | QPD Voltage Regulators | Breadboards may not be suitable for a reliable
work. Why don't you switch to any protoboard
and real soldering? |
|
|
8405
|
Wed Apr 3 18:22:00 2013 |
Jenne | Update | Electronics | POP110 re-implemented | I have re-implemented POP110. The
cable coming from the AS110 diode is disconnected,
labeled, and sitting in the cable tray next |
|
|
8404
|
Wed Apr 3 17:40:18 2013 |
Jamie | Configuration | Electronics | putting together a 110 MHz LSC demod board | I started to look into putting together
a 110 MHz demod board to be used as POP110
(see #8399). |
|
|
8403
|
Wed Apr 3 16:03:59 2013 |
Chloe | Update | | QPD Voltage Regulators | The voltage regulator on the QPD breadboard
seems to be having problems... yesterday
Eric helped me debug my circuit and discovered |
|
|
8402
|
Wed Apr 3 15:00:24 2013 |
Jamie | Summary | Electronics | Sorensen supplies in LSC rack (1Y2) | I investigated the situation of the two
Sorensen supplies in the LSC rack (1Y2).
They are there solely to supply power to |
|
|
8401
|
Wed Apr 3 14:46:17 2013 |
Gabriele | Summary | LSC | Error signal simulation in PRMI | Here is a summary of a simulation of the
error signal behavior in the PRMI configuration.
The main parameters are: |
14x |
|
8400
|
Wed Apr 3 14:45:34 2013 |
Jamie | Update | Computers | updated EPICS database (channels selected for saving) |
|
|
|
8399
|
Wed Apr 3 03:18:23 2013 |
Jenne | Update | Locking | PRMI locked with REFL55 I&Q for more than 1 minute | [Rana, Gabriele, Jenne]
We have |
|
|
8398
|
Wed Apr 3 01:32:04 2013 |
Jenne | Update | Computers | updated EPICS database (channels selected for saving) | I modified /opt/rtcds/caltech/c1/chans/daq/C0EDCU.ini
to include the C1:LSC-DegreeOfFreedom_TRIG_MON
channels. These are the same channel |
|
|
8397
|
Tue Apr 2 23:14:02 2013 |
rana | Update | LSC | 22/110MHz path for POP |
|
|
|
8396
|
Tue Apr 2 22:39:17 2013 |
Annalisa | Update | Auxiliary locking | Beat note between "Alberto" NPRO laser and PSL laser |
The beat note between the PSL
laser and the "Alberto" NPRO laser |
|
|
8395
|
Tue Apr 2 21:11:42 2013 |
Rana | Update | optical tables | Optical Table Toolboxes Update |
|
|
|
8394
|
Tue Apr 2 20:52:35 2013 |
rana | Update | Computers | iMac bashed | I changed the default |
|
|
8393
|
Tue Apr 2 18:19:30 2013 |
Jenne | Update | SUS | BS, PRM oplev servos improved |
[Gabriele, Jenne]
We have implemented 4Hz resonant |
|
|
8392
|
Tue Apr 2 17:23:23 2013 |
Steve | Update | 40m Upgrading | new ETMY optical table & enclosure in place | Enclosure is at the east end. It
has it's bottom o-ring in place. It will
be ready for optics tomorrow around 5pm |
|
|
8391
|
Tue Apr 2 16:55:34 2013 |
Jenne | Update | SUS | oplev calibration online for ITMs, BS, PRM | [Jenne, Gabriele]
We have put in a new EPICS input
into the SUS library part, just before the |
|
|
8390
|
Tue Apr 2 16:13:10 2013 |
rana | Update | SUS | oplev calibration for ITMX, BS | |
|
|
8389
|
Tue Apr 2 15:58:40 2013 |
Jenne | Update | SUS | oplev calibration for ITMX, BS | [Jenne, Gabriele]
Optical lever calibrations:
ITMX pit calibration = -9.07 cts/mrad |
|
|
8388
|
Tue Apr 2 11:08:16 2013 |
Koji | Update | LSC | PRMI lock | > The two REFL55 signals
Wow! It's a good news.
I think this is our first ever lock |
|
|
8387
|
Tue Apr 2 10:22:37 2013 |
Rana, Gabriele, Jenne | Update | LSC | PRMI lock | We locked the PRMI, this time really on
the sidebands, using the two REFL55 signals.
Here are the parameters: triggering |
|
|
8386
|
Mon Apr 1 23:22:17 2013 |
Annalisa | Update | Auxiliary locking | Beat note between "Alberto" NPRO laser and PSL laser | I measured the beat note between the "Alberto"
NPRO laser and the PSL varying the PSL temperature
and find the matching NPRO temperature that |
|
|
8385
|
Mon Apr 1 17:59:04 2013 |
Jenne | Update | Locking | PRMI videos | [Gabriele's work, I'm just spectating]
Annalisa is working on finding the
PSL/AUX laser beatnote, so the PSL temp is |
|
|
8384
|
Mon Apr 1 16:35:42 2013 |
Albert | Update | optical tables | Optical Table Toolboxes Update |
|
|
|
8383
|
Mon Apr 1 16:24:09 2013 |
Jamie | Frogs | LSC | PD whitening switching fixed (loose connection at break-out box) |
|
|
|
8382
|
Mon Apr 1 16:16:16 2013 |
Albert | Update | optical tables | Optical Table Toolboxes Update | A heavy duty plastic box is the likeliest
candidate for the optical table toolbox.
It measures 5 9/16 in. x 11 5/8 in. x 4 5/8 |
|
|
8381
|
Mon Apr 1 16:13:50 2013 |
Chloe | Update | | QPD | Because we would like to get started on
testing mount vibrations as soon as possible,
I've been trying to get one of the other |
|
|
8380
|
Mon Apr 1 09:25:35 2013 |
Jenne | Metaphysics | LSC | Lock of PRMI on sidebands | [Gabriele, Jenne]
I put a notch in FM10 for both MICH
and PRCL at 628Hz, to try to prevent us from |
|
|
8379
|
Mon Apr 1 09:05:09 2013 |
Jenne, Gabriele | Configuration | LSC | POP22 configuration | On Friday we modified the POP22 set up:
now the PD output goes to a bias tee. The
DC output goes to the ADC board, while the |
|
|
8378
|
Sun Mar 31 17:26:32 2013 |
rana | Update | LSC | Lock of PRMI on sidebands |
Our first move has to be fixing
the whitening switching for REFL55. That's |
|
|
8377
|
Fri Mar 29 19:58:24 2013 |
Gabriele, Jenne | Frogs | LSC | Analog whitening filter of REFL55 not switching |
|
|
|
8376
|
Fri Mar 29 19:56:02 2013 |
Gabriele | Metaphysics | LSC | Lock of PRMI on sidebands | I finally managed to get long stretches
of PRMI lock, up to many minutes. The lock
is not yest very stable, it seems to me that |
|
|
8375
|
Fri Mar 29 19:23:49 2013 |
Gabriele, Jenne | Frogs | LSC | Analog whitening filter of REFL55 not switching | We discovered that the analog whitening
filter of the REFL55_I board is not switching
when we operate the button on the user interface. |
|
|
8374
|
Fri Mar 29 17:24:43 2013 |
Jamie | Update | Computers | FB RAID power supply replaced | Steve ordered a replacement power supply
for the FB JetStor power supply that failed
a couple weeks ago. I just installed |
|
|
8373
|
Fri Mar 29 16:35:54 2013 |
Steve | Update | 40m Upgrading | Endtable upgrade |
My full effort to get the optical
table enclosure ready for the lab has failed |
|
|
8372
|
Fri Mar 29 16:30:27 2013 |
Steve | Update | 40m Upgrading | table leveling mounts go here |
|
|
|
8371
|
Fri Mar 29 00:27:06 2013 |
Manasa | Update | 40m Upgrading | Endtable upgrade for auxiliary green laser : Assembly | I am currently putting together all components
so that they are ready to go on the table
once leveling and installation of shield |
|
|
8370
|
Thu Mar 28 23:06:48 2013 |
Annalisa | Update | Auxiliary locking | "Alberto" NPRO laser again on PSL table | "Alberto"NPRO laser has
been moved again on PSL table in order to
make a measurement of the beat note varying |
|