| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
899
|
Fri Aug 29 12:41:26 2008 |
josephb, Eric | Configuration | Computers | More front ends moved to new network | Used Cat6 cables to finish moving all the
front ends in 1Y4 and 1Y5 over to the new
GigE network switches, specifically to the |
|
|
902
|
Fri Aug 29 16:35:18 2008 |
Yoichi | Configuration | PSL | beam block distorted | [quote]There was a beam block after the Mach
Zender. Who or what put this there?
|
|
|
903
|
Fri Aug 29 17:39:25 2008 |
rana | Configuration | PSL | PMC: ADC Channels | The attached PNG shows the PMC error and controls
signals with no calibration.
|
|
|
906
|
Sat Aug 30 13:28:01 2008 |
rana | Configuration | PSL | PMC: List of changes | This is a list of changes made to the PMC
board while we had it out for modifying the
notch:
|
|
|
908
|
Mon Sep 1 19:23:17 2008 |
Yoichi | Configuration | PSL | FSS on an auxiliary loop | Summary: The FSS is now temporarily disabled.
Naturally, the MC won't lock. I will fix
it tomorrow morning.
|
|
|
910
|
Tue Sep 2 09:58:42 2008 |
Yoichi | Configuration | PSL | FSS on an auxiliary loop | [quote]Summary: The FSS is now temporarily
disabled. Naturally, the MC won't lock. I
will fix it tomorrow morning.
|
|
|
913
|
Tue Sep 2 22:43:16 2008 |
Yoichi | Configuration | PSL | Updated FSS open loop TF | Since the LO level of the FSS servo was too
low, I replaced the RF oscillator board with
a combination of
|
|
|
915
|
Wed Sep 3 18:43:19 2008 |
Yoichi | Configuration | Electronics | Two more active probes | I found two active probes, an HP41800A and
a Tektronix P6201.
Thanks John for telling me you saw them before.
|
|
|
916
|
Wed Sep 3 18:45:01 2008 |
Alberto | Configuration | | PD3 gain | Alberto, Yoichi,
We found that the PD3 servo was unstable |
|
|
922
|
Thu Sep 4 11:33:25 2008 |
josephb, Eric, Jenne | Configuration | Computers | Attempt to increase gain for C1:PSL-ISS_INMONPD_F via 110B | We were attempting to increase the gain on
the channel C1:PSL-ISS_INMONPD_F in preparation
to do a scan of the PMC at very low input |
|
|
925
|
Thu Sep 4 16:24:56 2008 |
rana | Configuration | Computers | Attempt to increase gain for C1:PSL-ISS_INMONPD_F via 110B | [quote]We were attempting to increase the
gain on the channel C1:PSL-ISS_INMONPD_F
in preparation to do a scan of the PMC at |
|
|
930
|
Thu Sep 4 18:02:34 2008 |
rana, josephb | Configuration | PEM | Accelerometer gains increased by 10 | [COLOR=chocolate][SIZE=3]We increased the
Accelerometer gains by 10 by modifying the
C1ADCU_PEM.ini file.[/SIZE][/COLOR]
|
|
|
932
|
Fri Sep 5 09:56:14 2008 |
josephb, Eric | Configuration | Computers | Funny channels, reboots, and ethernet connections | 1) Apparently the I00-ICS type channels had
gotten into a funny state last night, where
they were showing just noise, exactly when |
|
|
937
|
Mon Sep 8 15:38:57 2008 |
Yoichi | Configuration | PSL | POY RF amp is back to its original task | I temporarily fixed the busted ZHL-32A RF
amplifier's power connector by simply soldering
a cable to the internal circuit and pulling |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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.
|
|
|
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 |
|
|
952
|
Wed Sep 17 12:55:28 2008 |
rob | Configuration | IOO | MC length | I measured the mode cleaner length last night:
[code]
|
|
|
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. |
|
|
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]
|
|
|
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. |
|
|
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 |
|
|
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, |
|
|
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
|
|
|
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]
|
|
|
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.
|
|
|
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 |
|
|
992
|
Thu Sep 25 14:03:08 2008 |
josephb | Configuration | Computers | | [quote]
We (Joe) need to buy a GigE card for linux1
and to also set up conlog and conlogger to |
|
|
994
|
Thu Sep 25 17:14:31 2008 |
rana | Configuration | General | new sitemap | |
|
|
997
|
Fri Sep 26 14:10:21 2008 |
Yoichi | Configuration | Computers | Lab laptops maintenance | The linux laptops were unable to write to
the NFS mounted directories.
That was because the UID of the controls |
|
|
1001
|
Fri Sep 26 19:08:43 2008 |
rana | Configuration | PSL | Refcav Trans: PD + Camera + Dumps | I went out to improve the Refcav trans path.
I removed all ND filters to get rid of the |
|
|
1006
|
Mon Sep 29 13:33:39 2008 |
josephb | Configuration | Computers | Gigabit network finished and conlog available on Nodus | The last 100 Mb unmounted hub has been removed
(or at least of the ones I could find).
We should be on a fully gigabit network with |
|
|
1015
|
Wed Oct 1 12:05:58 2008 |
Alberto | Configuration | Computers | "StochMon" added to the Alarm Handler | John, Alberto,
we added the four channels of the RF Amplitude |
|
|
1016
|
Wed Oct 1 12:09:25 2008 |
Alberto | Configuration | Computers | "StochMon" added to the Alarm Handler | [quote]John, Alberto,
we added the four channels of the RF Amplitude |
|
|
1018
|
Wed Oct 1 23:21:03 2008 |
Yoichi | Configuration | PSL | Reference cavity reflection camera | I re-centered the reference cavity reflection
camera, which has been mis-aligned for a
while.
|
|
|
1022
|
Fri Oct 3 12:15:21 2008 |
Alberto | Configuration | IOO | C1iool0 rebooted | This morning, in order to update the threshold
values of the alarm handler for the StochMon,
I rebooted the C1iool0 computer following |
|
|
1031
|
Tue Oct 7 12:17:57 2008 |
Alberto | Configuration | Computers | Time reset on MEDM | Yoichi, Alberto
I noticed the MEDM screen time was about |
|
|
1033
|
Wed Oct 8 12:35:56 2008 |
josephb | Configuration | Computers | New Network diagram for the 40m | Attached is a pdf of the new network diagram
for the 40m after having removed all of the
old hubs. |
|
|
1034
|
Wed Oct 8 19:17:55 2008 |
Yoichi | Configuration | PSL | Laser power is slowly recovering | This afternoon we (rich, steve, yoichi) shutdown
the laser for the DC-DC converter installation.
|
|
|
1036
|
Wed Oct 8 22:23:43 2008 |
Yoichi | Configuration | Electronics | Electronics work bench cleanup | Yesterday, I cleaned up the electronics work
bench. I figured that keeping the work bench
in order has larger effect on the work efficiency |
|
|
1041
|
Fri Oct 10 20:03:35 2008 |
Yoichi | Configuration | Computers | medm, dataviewer, dtt on 64 bit linux | I compiled EPICS (base, medm and ezca) and
dataviewer for 64 bit linux.
These are installed in /cvs/cds/caltech/apps/linux64/.
|
|
|
1043
|
Mon Oct 13 13:51:49 2008 |
pete | Configuration | PSL | attempt to measure FSS ref phase | On Friday I began a measurement of the FSS
reference phase. The setup involves the
following:
|
|
|
1046
|
Tue Oct 14 14:19:36 2008 |
pete | Configuration | PSL | FSS ref phase | Today I made several measurements which should
yield the optimized phase for the FSS 21.5
MHz reference. I made two sets of measurements, |
|
|
1048
|
Tue Oct 14 19:24:34 2008 |
Yoichi | Configuration | PSL | FSS light power reduced | Rana, Yoichi
To change the gain distribution in the FSS, |
|
|
1050
|
Wed Oct 15 22:07:52 2008 |
pete | Configuration | PSL | FSS ref phase measurements | Optimizing the FSS LO/RF phase at 500 kHz,
above the servo band, proved to be noisy
and those measurements were useless. Today |
|
|
1052
|
Thu Oct 16 09:47:49 2008 |
Yoichi | Configuration | PSL | FSS ref phase measurements | [quote] I fit the bottom (quadratic) portion
of this curve, and found an optimum delay
of 25.8 ns, which can be implemented as 25.81 |
|
|
1053
|
Thu Oct 16 13:12:58 2008 |
pete | Configuration | PSL | phase between FSS reference outputs | I verified the phase between the FSS reference
outputs (used for LO and RF) using matched
BNC cables. I measured 0.95 degree (average |
|
|
1054
|
Thu Oct 16 16:26:26 2008 |
pete | Configuration | PSL | FSS phase matching cable installed | RG 405 cable has a solid teflon dielectric,
and a velocity factor of 0.69. To get the
8.2 degrees of additional phase on the LO |
|