| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1059
|
Mon Oct 20 15:02:00 2008 |
Yoichi | Configuration | Computers | /cvs/cds restored | I moved missing files in /cvs/cds restored
by Alan and Stuart to the original locations.
I confirmed autoburt runs, and dtt, which |
|
|
1058
|
Mon Oct 20 12:18:38 2008 |
Alan | Update | Computer Scripts / Programs | burtwb missing on Solaris but installed on linux64 | [quote]c1lsc stalled this evening, so I powercycled
it.
After that, I tried to lock arms to confirm |
|
|
1057
|
Mon Oct 20 09:45:56 2008 |
steve | Update | PEM | PSL HEPA on | The PSL HEPA filter was turned on.
It should be running all times.
The 0.5 micron particle count is up to 20,000 |
|
|
1056
|
Fri Oct 17 21:41:09 2008 |
Yoichi | Update | Computer Scripts / Programs | burtwb missing on Solaris but installed on linux64 | c1lsc stalled this evening, so I powercycled
it.
After that, I tried to lock arms to confirm |
|
|
1055
|
Fri Oct 17 16:43:10 2008 |
Yoichi | Configuration | Computers | mcup/down scripts on linux | I made some changes to /cvs/cds/caltech/medm/c1/ioo/cmd/medmMCup
and medmMCdown so that those can be run from
medm on linux machines. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
1051
|
Thu Oct 16 09:44:49 2008 |
Yoichi | Update | PSL | Bad cable for FSS | Yesterday arount 1:30PM, we lost the LO signal
for the FSS.
I found it was caused by a bad cable connecting |
|
|
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 |
|
|
1049
|
Wed Oct 15 17:40:50 2008 |
rana | Update | PSL | PMC Offset adjusted | I set the PMC servo input offset: closed the
MOPA shutter, zeroed the mixer output with
the offset slider,
|
|
|
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, |
|
|
1047
|
Tue Oct 14 19:18:18 2008 |
Yoichi | Update | Computers | BootFest | Rana, Yoichi
Most of the FE computers failed around the |
|
|
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, |
|
|
1045
|
Mon Oct 13 18:59:39 2008 |
Yoichi | Update | PSL | NPRO EMI and FSS error signal correlation | I made a simple loop antenna to measure the
electro-magnetic inteference (EMI) around
the master oscillator NPRO.
|
|
|
1044
|
Mon Oct 13 13:56:03 2008 |
Yoichi | Update | PSL | MOPA is not that much in trouble now | The problem was found to be all to do with
the shutter.
The shutter started to work again, after |
|
|
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:
|
|
|
1042
|
Mon Oct 13 11:32:50 2008 |
Yoixhi | Update | PSL | MOPA is in trouble now | Steve, Alberto, Yoichi
A quick update.
|
|
|
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/.
|
|
|
1040
|
Fri Oct 10 13:57:33 2008 |
Alberto | Omnistructure | Computers | Problems in locking the X arm | This morning for some reason that I didn't
clearly understand I could not lock the Xarm.
The Y arm was not a problem and the Restore |
|
|
1039
|
Fri Oct 10 10:20:42 2008 |
Alberto | Omnistructure | Computers | FEs are down | [quote]
The front-end machines are all down. Another
cosmic-ray in the RFM, I suppose. Whoever |
|
|
1038
|
Fri Oct 10 00:34:52 2008 |
rob | Omnistructure | Computers | FEs are down |
The front-end machines are all down. Another
cosmic-ray in the RFM, I suppose. Whoever |
|
|
1037
|
Wed Oct 8 23:18:23 2008 |
Yoichi | Update | PSL | Correlation between the Sorensen switching noise and the FSS error signal | I took some spectra and coherence function
of the FSS error signal and the +24V Sorensen
power line.
|
|
|
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 |
|
|
1035
|
Wed Oct 8 21:26:20 2008 |
Yoichi | Update | PSL | Attempt to replace the DC-DC converter (aborted) | Rich, Steve, Yoichi
We opened the MOPA box and inspected our |
|
|
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.
|
|
|
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. |
|
|
1032
|
Tue Oct 7 21:19:40 2008 |
Yoichi | Update | IOO | MC_F calibrated spectrum | [COLOR=darkred]I updated the plots because
I did not take into account the double path
AOM effect, which doubles the frequency actuation |
|
|
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 |
|
|
1030
|
Tue Oct 7 10:49:29 2008 |
Alberto | Update | General | Displaced Photodiode | This morning I found that the photodidode
of the PLL in the PSL table was not aligned
to the beam anymore. The PD support was not |
|
|
1029
|
Mon Oct 6 16:41:33 2008 |
Alberto | DAQ | LSC | C1LSC in coma | [quote]Alberto, Joe,
The C1LSC medm screen is frozen and the C1LSC |
|
|
1028
|
Mon Oct 6 12:45:41 2008 |
Alberto | DAQ | LSC | C1LSC in coma | Alberto, Joe,
The C1LSC medm screen is frozen and the C1LSC |
|
|
1027
|
Mon Oct 6 10:00:49 2008 |
steve | Update | MOPA | MOPA_HTEMP is up | Monday morning conditions:
The laser head temp is up to 20.5 C
|
|
|
1026
|
Sat Oct 4 07:23:42 2008 |
Koji | Metaphysics | Environment | The Gatekeeper | Hi, this is Koji from Japan.
I am afraid that this is a poisonous spider, |
|
|
1025
|
Fri Oct 3 19:38:02 2008 |
rob | Metaphysics | Environment | The Gatekeeper |
Found this lady outside the door of the 40m
lab a few nights ago. |
|
|
1024
|
Fri Oct 3 15:57:05 2008 |
rob | Update | Locking | last night, again | Last night was basically a repeat of the night
before--marginally better locking with the
DRMI resonating the +f2
|
|
|
1023
|
Fri Oct 3 15:09:58 2008 |
rob | Update | PSL | FAST/SLOW |
Last night during locking, for no apparent
reason (no common mode), the PSL FAST/SLOW |
|
|
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 |
|
|
1021
|
Thu Oct 2 18:56:19 2008 |
rana | Summary | SUS | Resistivity of Suspension Wire | Bob and Steve measured the resistance of the
suspension wire today:
|
|
|
1020
|
Thu Oct 2 16:44:28 2008 |
steve | Summary | oplevs | optical levers | The idea is to push the UGF to 10 Hz of the
TM oplev servos with quiet HeNe laser.
We measured good intensity noise of JDS 1103P |
|
|
1019
|
Thu Oct 2 02:45:50 2008 |
rob | Update | Locking | marginally better | Locking the DRMI with the +f2 sideband was
marginally better tonight. I was able to
get it lock stably enough to take transfer
|
|
|
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.
|
|
|
1017
|
Wed Oct 1 23:05:14 2008 |
Yoichi | Update | PSL | ISS RIN spectra | Stefan, Yoichi
We took relative intensity noise (RIN) spectra |
|
|
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 |
|
|
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 |
|
|
1014
|
Wed Oct 1 02:54:03 2008 |
rob | Update | Locking | bad |
Tried the spring-y side tonight with a discouraging
lack of progress. There were several locks |
|
|
1013
|
Wed Oct 1 02:47:53 2008 |
rana | Update | PSL | PSL ERR & LODET: Too much offset | Looks like there is an anomolous mixer offset
correlated with the increase in the LO level.
This may be leading to crazy offset locking |
|
|
1012
|
Wed Oct 1 02:10:03 2008 |
rana | Update | IOO | MZ is going bad | Here's a 2 day trend of the MZ. You can see
that there is something bad with ERR - it
should really be going to zero.
|
|
|
1011
|
Wed Oct 1 00:24:54 2008 |
rana | Update | Locking | last night | I had mistakenly left the MC boost off during
my FAST investigations. The script is now
restored.
|
|
|
1010
|
Tue Sep 30 19:50:27 2008 |
Jenne | Update | PSL | Quicky Summary - more details later | Quicky summary for now, more details later
tonight / tomorrow morning:
|
|