| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
9055
|
Thu Aug 22 21:16:47 2013 |
Manasa | Update | Green Locking | GTRY normalized | The Y arm green transmission has been measuring
in counts all along. I modified the gain
in the ALS-TRY filter module to normalise |
|
|
9054
|
Thu Aug 22 20:25:28 2013 |
Masayuki | Summary | Green Locking | Y-arm PDH OLTF measurement | [Manasa, Masayuki]
We measured the the openloop transfer
function of the PDH green lock of the y-arm.The |
|
|
9053
|
Thu Aug 22 13:20:54 2013 |
Koji | Update | LSC | DRMI Locked for 1+ minute!!!!!! | Don't go for a hacky solution. We want
to climb a staircase step by step.
Prepare an independent 110MHz demod |
|
|
9052
|
Thu Aug 22 13:03:40 2013 |
Jenne | Update | LSC | DRMI Locked for 1+ minute!!!!!! |
|
|
|
9051
|
Thu Aug 22 10:20:32 2013 |
kiwamu | Update | LSC | DRMI Locked for 1+ minute!!!!!! | Wonderful
! I like the video -- the spatial |
|
|
9050
|
Thu Aug 22 07:57:57 2013 |
Lisa | Update | LSC | DRMI Locked for 1+ minute!!!!!! | Very nice!! I was wondering, shouldn't
the driving matrix be such that MICH pushes |
|
|
9049
|
Thu Aug 22 02:40:12 2013 |
Jenne | Update | LSC | DRMI Locked for 1+ minute!!!!!! | [Jenne, Koji]
The DRMI |
|
|
9048
|
Wed Aug 21 23:50:40 2013 |
Koji | Update | SUS | PRM SUS_LSC violin (FM5) set to correct frequency | [Jenne Koji]
It seems that the PRM violin mode
freqs shifted from 625-ish to 640Hz. |
|
|
9047
|
Wed Aug 21 19:37:25 2013 |
Masayuki | Summary | Green Locking | X-arm PDH OLTF measurement | [Manasa, Masyauki]
Today we measured OLTF of PDH green |
|
|
9046
|
Wed Aug 21 19:26:19 2013 |
rana | Update | IOO | Found the cause of mysterious MC motion |
|
|
|
9045
|
Wed Aug 21 17:42:03 2013 |
rana | Summary | General | /home/cds nearly full | One of the reasons that our disk is getting
full is due to the scripts_archive directory.
A backup script runs on op340m and makes |
|
|
9044
|
Wed Aug 21 00:18:03 2013 |
Masayuki | Summary | Green Locking | X-arm PDH OLTF measurement | [Manasa Masayuki]
Today we measured the openloop transfer
function of the PDH green lock of the x-arm. |
|
|
9043
|
Tue Aug 20 18:42:57 2013 |
Jenne | Update | LSC | REFL investigations | I have done the swap in the REFL path.
First, I swapped the positions of REFL11
and REFL55. Then, I swapped out the |
|
|
9042
|
Tue Aug 20 16:23:41 2013 |
rana | Summary | General | /home/cds nearly full | /home/cds is >98% full - below are some
of the usage numbers:
|
|
|
9041
|
Tue Aug 20 11:52:20 2013 |
Jenne | Update | LSC | REFL investigations |
|
|
|
9040
|
Tue Aug 20 11:41:30 2013 |
Koji | Update | LSC | REFL investigations | As I always tell everyone: Don't use a 10% reflector
which produce ghost beams. Use a 90% reflector. |
|
|
9039
|
Tue Aug 20 10:59:15 2013 |
Steve | Update | Green Locking | Xend green layout corrections |
|
|
|
9038
|
Tue Aug 20 01:28:47 2013 |
Jenne | Update | LSC | REFL investigations | According to the wiki, REFL 11 has a transimpedance
of 4.08kV/A, and REFL 55 has a transimpedance
of 615V/A. This is a ratio of ~6.5 |
|
|
9037
|
Tue Aug 20 00:19:23 2013 |
rana | Update | LSC | PRMI / DRMI investigations | While Jenne was plotting, I locked and
aligned the MICH with AS55_Q. Then I aligned
the PRM and locked PRMI using REFL55_I/Q |
6x |
|
9036
|
Mon Aug 19 23:08:31 2013 |
Jenne | Update | LSC | DRMI sensing signals | Here are a bunch of sensing signals.
The configuration is always DRMI. Except
for the optic noted in the title and the |
11x |
|
9035
|
Mon Aug 19 19:08:35 2013 |
Koji | Update | Green Locking | Xend green layout corrections | - An Aluminum mirror instead of 2"
unknown mirror for the pick-off for the rejected
beam from the green faraday isolator (Steve) |
|
|
9034
|
Mon Aug 19 17:40:32 2013 |
Steve | Update | Green Locking | Xend green layout corrections | Shutter moved, no more clipping.
Pick-off mirror 2" replaced
by 1" one. Laseroptik HR 532nm, incident |
|
|
9033
|
Mon Aug 19 16:18:56 2013 |
manasa | Update | Green Locking | Xend green aligned | ASX scripts for PZT dither have been fixed
appropriately. Script resides in |
|
|
9032
|
Mon Aug 19 15:23:07 2013 |
Koji | Update | IOO | MC mirrors' ASC has non-zero inputs | [Jenne, Koji]
This disturbance in the MC ASC channels
were fixed. |
|
|
9031
|
Mon Aug 19 14:22:36 2013 |
rana | Update | Green Locking | Xend green aligned | |
|
|
9030
|
Mon Aug 19 11:30:20 2013 |
Jenne | Update | IOO | MC mirrors' ASC has non-zero inputs | [Masayuki, Jenne]
When I came in this morning, I noticed
that the Mode Cleaner had not been locked |
|
|
9029
|
Mon Aug 19 11:12:54 2013 |
Steve | Update | VAC | RGA scan at day 13 |
|
|
|
9028
|
Mon Aug 19 10:16:15 2013 |
Picasso | Metaphysics | Treasure | outsider art | |
|
|
9027
|
Mon Aug 19 10:03:17 2013 |
Steve | HowTo | General | how not to leave a cable | We can not leave cables connected like
this. This is a burned toast award. |
|
|
9026
|
Mon Aug 19 09:54:13 2013 |
Steve | Update | safety | Masayuki receives safety training | Masayuki Nakano, a student of Seiji's from
ICRR / U Tokyo, is visiting us here at the
40m lab for the next couple months. |
|
|
9025
|
Mon Aug 19 09:36:32 2013 |
Koji | Update | Green Locking | Xend green aligned | [Rana Koji]
This is an elog about the activity
on Friday night. |
|
|
9024
|
Mon Aug 19 07:53:48 2013 |
Steve | Update | SUS | ETMX damping restored | ETMX sus damping restored |
|
|
9023
|
Sun Aug 18 20:07:41 2013 |
rana | Update | Computer Scripts / Programs | userapps SVN up | JoeB and JamieR are working somewhat coherently
on a set of python libraries to fulfill all
of our command line CDS wants. This is being |
|
|
9022
|
Sun Aug 18 17:56:16 2013 |
rana | Summary | CDS | MEDM Screen CPU Usages | I noticed at LLO (?) that the LSC screen
there uses up ~25-30% of the CPU time on
a single core for the control room iMac workstations |
|
|
9021
|
Sun Aug 18 16:04:07 2013 |
rana | Summary | CDS | FB lights all RED: mxstream restart | Sun Aug 18 15:52:50 2013
Found the FB lights (C1:FEC-NN_FB_NET_STATUS
and C1:DAQ-DC0_C1XXX_STATUS) RED for everything |
|
|
9020
|
Fri Aug 16 21:15:04 2013 |
rana | Update | CDS | New/old CDS laptop for X-End | I took the "aso-laptop" and made
it into Ubuntu a couple months ago. Today
I added it to the Martian network and then |
|
|
9019
|
Fri Aug 16 19:36:49 2013 |
Charles | Update | PSL | PMC_trans Channel | Rana and I connected the PMC_trans output
to the BNC connector board on the west end
of the PSL table (the channel is labeled). |
|
|
9018
|
Fri Aug 16 13:25:50 2013 |
Koji | Update | ASS | ASX model/screen cleaning up | [Koji Manasa]
Yesterday we cleaned up the ASX model
and screens to have more straight forward |
|
|
9017
|
Fri Aug 16 09:35:18 2013 |
Steve | Update | VAC | Vacuum Normal state recognition is back |
|
|
|
9016
|
Thu Aug 15 21:42:53 2013 |
Charles | Update | ISS | ISS - Schematic + PCB Layout | After many, many moons of getting
to know exactly how frustrating Altium can
be, I have completed the PCB layout for my |
|
|
9015
|
Thu Aug 15 19:05:07 2013 |
manasa | Update | Green Locking | ALS out of loop noise | Beat notes were recovered for both the
arms.
I locked the arms to IR using PDH |
|
|
9014
|
Thu Aug 15 12:30:17 2013 |
manasa | Update | Green Locking | Lost beat notes | [Koji, Nic, Manasa]
Update from last night.
Koji and I realigned the green optics |
|
|
9013
|
Thu Aug 15 09:34:12 2013 |
Steve | Update | General | Wilcoxon cables rescued | Eric and Steve,
We removed Wilcoxon Accelerometer
PS and Amplifier unit under the BS optical |
|
|
9012
|
Thu Aug 15 01:51:50 2013 |
Koji | Summary | General | RFM<->Dolphin bridge distributed to c1rfm and c1mcs | Since the RFM-Dolphin bridges for the ASX
model was added to the c1rfm model, c1rfm
kept timing-out from the single sample time |
|
|
9011
|
Wed Aug 14 08:24:20 2013 |
Steve | Update | VAC | pumpdown at day 8 |
|
|
|
9010
|
Tue Aug 13 22:21:12 2013 |
Koji | Summary | General | Minicircuit Filter TFs (AG4395A test) | As a part of the network analyzer test
in the previous entry, the transfer functions
of Mini-Circuits filters we have at the 40m |
|
|
9009
|
Tue Aug 13 21:49:32 2013 |
Koji | Summary | General | Testing new AG4395A network analyzer | New AG4395, sn MY41101114 for West
Bridge Labs was delivered. For the test purpose
it is at the 40m now. |
|
|
9008
|
Tue Aug 13 21:09:03 2013 |
manasa | Update | Green Locking | Arms ready for ALS | I aligned
both the X and Y end green to the arms.
The transmitted green were aligned |
|
|
9007
|
Tue Aug 13 17:20:54 2013 |
Koji | Update | CDS | [Fixed] c1iscex needs help | c1x01 timing issue was solved. Now all
of the models on c1iscex are nicely running.
Symptons |
|
|
9006
|
Tue Aug 13 13:30:41 2013 |
Alex Cole | Configuration | Electronics | Cable Routing | I routed cables (RG405 SMA-SMA) from
several demodulator boards in rack 1Y2 to
the RF Switch in rack 1Y1 using the overhead |
|