| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
989
|
Thu Sep 25 02:35:21 2008 |
rana | Summary | PSL | FAST is moving alot | It looks like the FAST signal has started
moving a lot - this is partly what inspired
us to tune the SLOW loop.
|
|
|
988
|
Wed Sep 24 19:13:06 2008 |
rana | Configuration | Computer Scripts / Programs | updatedb & locate: megatron & rosalba | I ran [I]updatedb[/I] as root today on megatron
and rosalba just before the meeting.
It finished at ~14:10 on both machines so |
|
|
987
|
Wed Sep 24 17:57:04 2008 |
Alberto | Update | General | ABSL: FSS Slow Actuator Control | Rana, Alberto
Today when I started working with the PLL |
|
|
986
|
Tue Sep 23 15:28:06 2008 |
pete | Configuration | PSL | new 21.5 MHz FSS reference installed | The new 21.5 MHz FSS reference is now installed
in the rack with the 7 Sorensen PS. Both
outputs give 18.7 dBm. The MC seems happy.
|
|
|
985
|
Tue Sep 23 13:25:07 2008 |
rob | Update | Locking | a bit better | I've been spending time working on the short
DOF loops (PRC,MICH,SRC) in an attempt to
make the
|
|
|
984
|
Tue Sep 23 11:17:59 2008 |
steve | Update | PSL | PMC scattering spot | The PMC output side has a new madly scattering
spot at chamfer 2 o'clock position |
|
|
983
|
Tue Sep 23 00:47:24 2008 |
Yoichi | HowTo | Computers | Network GPIB | [quote]
I wrote a new script called "netgpibdata.py"
which works similarly as "getgpibdata.py".
|
|
|
982
|
Mon Sep 22 22:24:19 2008 |
rana | Configuration | PSL | bad FSS | [quote]The MC refl power was going up and
the FSS PC drive was so large that I had
to turn up the FSS...[/quote]
|
|
|
981
|
Mon Sep 22 21:54:05 2008 |
rana | Update | ASS | New Wiener result with x10 gain in ACC | The 2 attached PDF files show the performance
of the Wiener filter code on 2 hours of data
with a 4000 tap filter on 64 Hz data. All |
|
|
980
|
Mon Sep 22 21:30:06 2008 |
rana | Configuration | PSL | bad FSS | The MC refl power was going up and the FSS
PC drive was so large that I had to turn
up the FSS
|
|
|
979
|
Mon Sep 22 20:00:35 2008 |
Alberto | Update | General | ABSL: running measurement | I'm leaving the X arm locked on the TEm01
mode while a measurement is running. Just
please wait for 40 minute if you need the |
|
|
978
|
Mon Sep 22 18:54:54 2008 |
Jenne | Update | PSL | PMC transfer functions with various brick-on-top configurations | Attached below is a graphical summary of different
things that I have tried putting on the PMC
to reduce the noise in the loop. The motivation |
|
|
977
|
Mon Sep 22 16:51:27 2008 |
Yoichi | HowTo | Computers | Network GPIB | I was able to make the wireless connected
GPIB interface work with SR785.
Now you can download data from SR785 through |
|
|
976
|
Mon Sep 22 15:02:45 2008 |
rana | Frogs | Treasure | Mantis found outside the 40m door at night | |
|
|
975
|
Mon Sep 22 12:06:58 2008 |
rob | Update | SUS | ITMY UL OSEM |
Last week I found the ITMY UL OSEM dead. |
|
|
974
|
Fri Sep 19 11:48:14 2008 |
steve | Update | Computers | old hubs can make one happy | Joseph finds a XIX century bottle neck hub:
CentreCOM 3624TR 10Base-T
and happily replaces it with Netgear GS724T |
|
|
973
|
Fri Sep 19 11:21:45 2008 |
josephb | Configuration | Computers | Nameserver and Rosalba | I tried modifying the nsswitch.conf file to
include going to dns in addition to local
files for everything (services, network, |
|
|
972
|
Fri Sep 19 09:49:42 2008 |
Yoichi | Update | Computers | svn is old | The problem below is fixed now.
The cause was .svn/entries and .svn/format
had wrong version number "9" where it had |
|
|
971
|
Fri Sep 19 08:09:55 2008 |
steve | Update | PSL | psl HEPAs turned on | I have just turned on the PSL HEPA filters
at 60% operational speed. |
|
|
970
|
Fri Sep 19 01:55:41 2008 |
rana | Summary | SUS | SUS Drift Screen Updated | I wrote 2 matlab scripts to update the SUS
DRIFT screen:
|
|
|
969
|
Fri Sep 19 00:18:14 2008 |
rana | Update | Computers | svn is old | [CODE]linux2:mDV>ssh nodus
Password:
Last login: Fri Sep 19 00:11:44 2008 from |
|
|
968
|
Fri Sep 19 00:06:54 2008 |
rana | Update | IOO | MC_F: Too much frequency noise around 100 Hz | WE noticed this excess again in MC_F. We tried
recentering the WFS, but no effect.
|
|
|
967
|
Thu Sep 18 23:31:26 2008 |
rana | Update | PSL | ISS: Saturating too often at nominal gain | The ISS has been saturating whenever the MC
relocks and puts the gain up to +8dB. I have
lowered the gain to +1 dB for now to stop |
|
|
966
|
Thu Sep 18 18:38:14 2008 |
Yoichi | HowTo | Computers | How to compile an SNL code for VxWorks | Dave Barker guided me through how to compile
an SNL code into a Motorola 162 CPU object.
|
|
|
965
|
Thu Sep 18 14:36:54 2008 |
josephb | Configuration | Computers | Name server and Epics | The problems Rob was experiencing last night
was due to part of the setup (or rather testing
of the setup) of the new nameserver running |
|
|
964
|
Thu Sep 18 13:05:05 2008 |
Yoichi | Update | Computers | EPICS BACK | [quote]
The Y-arm doesn't, because one of the digital
filters for the Y-arm lock fails to be loaded |
|
|
963
|
Thu Sep 18 12:16:01 2008 |
Yoichi | Update | Computers | EPICS BACK | [quote]
Somehow the EPICS system got hosed tonight.
We're pretty much dead in the water till |
|
|
962
|
Thu Sep 18 09:30:12 2008 |
steve | Update | General | low noise metal film resistors are in | Low noise metal film resistor and capacitor
kits from www.garrettelec.com are in.
|
|
|
961
|
Thu Sep 18 01:14:23 2008 |
rob | Summary | Computers | EPICS BAD |
Somehow the EPICS system got hosed tonight.
We're pretty much dead in the water till |
|
|
960
|
Wed Sep 17 19:13:47 2008 |
Alberto | Update | General | ABSL: status | I installed the setup for measuring TEM01/10
on the X end table.
I'm leaving. I shut the laser, flipped down |
|
|
959
|
Wed Sep 17 17:58:35 2008 |
Yoichi | Configuration | PSL | RC sweep going on | The cavity sweep is done. The IFO is free
now. |
|
|
958
|
Wed Sep 17 17:31:24 2008 |
Yoichi | Update | PSL | FSS calibration | I calibrated the reference cavity error signal
with the following procedure.
|
|
|
957
|
Wed Sep 17 15:22:31 2008 |
Yoichi | Configuration | PSL | RC sweep going on | [quote]I'm doing a cavity sweep of the RC.
Please leave the IFO untouched until the
meeting is over.[/quote]
|
|
|
956
|
Wed Sep 17 13:58:36 2008 |
Alberto | Update | General | ABSL: results from the X arm | Today I repeated the measurement of the FSR
on the X arm cavity. The noise in the transmitted
power that made the measures fluctuate was |
|
|
954
|
Wed Sep 17 13:43:54 2008 |
Yoichi | Configuration | PSL | RC sweep going on | I'm doing a cavity sweep of the RC. Please
leave the IFO untouched until the meeting
is over. |
|
|
953
|
Wed Sep 17 12:58:12 2008 |
rob | Update | Locking | bad |
Locking was pretty unsuccessful last night.
All the subparts were locked (ARMs, PRM, |
|
|
952
|
Wed Sep 17 12:55:28 2008 |
rob | Configuration | IOO | MC length | I measured the mode cleaner length last night:
[code]
|
|
|
951
|
Tue Sep 16 16:47:01 2008 |
pete | Configuration | PSL | Prototype FSS reference installed | After verifying output, I installed the new
prototype 21.5 MHz FSS reference (Wenzel
crystal oscillator and ZHL-2 amp). Yoichi |
|
|
950
|
Tue Sep 16 13:04:22 2008 |
Yoichi | Configuration | PEM | C1:PSL-FSS_RMTEMP alarm level changed | At the request of Steve, I modified the HIGH
value of C1:PSL-FSS_RMTEMP from 21.27 to
23.0.
|
|
|
949
|
Tue Sep 16 10:57:45 2008 |
Yoichi | Configuration | PEM | Particle counter gain | Summary:
Since we reduced the integration time of
the particle counter by a factor of 10, we |
|
|
948
|
Mon Sep 15 14:00:52 2008 |
josephb | Configuration | Computers | 1Y9 Hub and C1asc | The 1Y9 switch is now using a labeled Cat6
cable in cable trays to connect to the main
switch in the offices. In addition, the |
|
|
947
|
Sun Sep 14 19:29:07 2008 |
Alberto | Update | General | ABSL: measured X arm | [quote]Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
946
|
Sun Sep 14 18:30:32 2008 |
Alberto | Update | General | ABSL: measured X arm | Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
945
|
Sat Sep 13 23:13:01 2008 |
Alberto | Update | General | abs cavity length experiment | The Y arm was locked all time today but, suddenly,
this afternoon it lost lock and since then
I've been unable to restore it. I tried unsuccessfully |
|
|
944
|
Fri Sep 12 11:09:20 2008 |
Alberto | Update | General | abs cavity length experiment | I'm leaving the lab for a couple of hours.
I shut the NPRO. The interferometer is available
to anyone. |
|
|
943
|
Thu Sep 11 23:28:35 2008 |
alberto | Update | General | abs cavity length experiment | The MC lost lock for some reason not related
to either the FSS or the PMC I'm done with
my measurement for tonight. I've shut the |
|
|
942
|
Thu Sep 11 14:27:53 2008 |
steve | Bureaucracy | SAFETY | safety training | Peter Kalmus received 40m specific safety
training last week. |
|
|
941
|
Thu Sep 11 11:29:14 2008 |
josephb | Configuration | Computers | Final netgear switch in place in 1Y2 | I've placed the final (of 4) Netgear prosafe
24 port switch at the very top of 1Y2. At
that location, there are no holes left to |
|
|
940
|
Wed Sep 10 19:53:53 2008 |
Alberto | Update | General | abs length experiment | Update of the last days work on the experiment
to measure the absolute length of the cavities.
|
|
|
939
|
Wed Sep 10 13:28:25 2008 |
Yoichi | Summary | Electronics | IOO rack lost -24V (recovered) | Alberto, Yoichi
This morning, the MC suddenly started to |
|