| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
3825
|
Fri Oct 29 16:03:35 2010 |
kiwamu | Update | PSL | wideband EOM : installed the triple resonant box |
|
|
|
3824
|
Fri Oct 29 14:16:26 2010 |
Jenne | Update | SUS | PRM baking | [Suresh, Jenne]
We took a look-see at the PRM after
the gluing from last night. The balance |
|
|
3823
|
Fri Oct 29 14:06:12 2010 |
kiwamu | Update | Green Locking | Re: 80MHz VCO for green PLL : VCO calibration | P.S. There is a document about the 80MHz
VCO box. This may be helpful.
|
|
|
3822
|
Fri Oct 29 11:29:29 2010 |
josephb | Update | CDS | How I broke the frame builder yesterday | Problem:
Long before Yuta came along and deleted
daqd, I had done something to prevent the |
|
|
3821
|
Fri Oct 29 11:25:15 2010 |
josephb, yuta | Summary | CDS | [EMERGENCY] accidentally deleted daqd | Problem:
Missing daqd file, i.e. the framebuilder
executable. |
|
|
3820
|
Fri Oct 29 06:20:20 2010 |
kiwamu | Update | Green Locking | 80MHz VCO for green PLL : VCO calibration | I calibrated the VCO frequency
as a function of the applied input voltage.
|
|
|
3819
|
Fri Oct 29 05:40:51 2010 |
kiwamu | Update | PSL | wideband EOM aligned : AM decreased by 24dB | At the
PSL table I aligned the wideband EOM more |
|
|
3818
|
Fri Oct 29 04:58:04 2010 |
Kevin | Update | PSL | PBS Optimization | [Koji and Kevin]
Since there was still a lot of power
being reflected from the PBS before the Faraday |
|
|
3817
|
Fri Oct 29 04:24:34 2010 |
Koji | Update | IOO | PMC output increased: need attention | [Kevin Koji]
- The PBS alignment increased
the transmitted power |
|
|
3816
|
Fri Oct 29 01:18:03 2010 |
Koji | Summary | SUS | PRM standoff glued | [Suresh Koji]
The standoff glued. The incandescent
lamp set for curing the epoxy. |
|
|
3815
|
Thu Oct 28 23:17:15 2010 |
yuta | Summary | CDS | [EMERGENCY] accidentally deleted daqd | Rana showed me that if c1sus machine runs
c1mcs stuff(and c1x02 stuff) only, we can
use dataviewer without crashing fb. |
|
|
3814
|
Thu Oct 28 21:20:11 2010 |
yuta | Update | CDS | Flaky fb, tried DAQ re-install, but no help | Summary:
Unfortunately, fb is flakier
than normal. |
|
|
3813
|
Thu Oct 28 20:08:26 2010 |
yuta | Update | Green Locking | revised RF amp cascading | Background:
Yesterday, I said I will use
ZHL-32A for amplifying beat note signal, |
|
|
3812
|
Thu Oct 28 19:10:26 2010 |
tara | Update | Electronics | TTFSS for 40m | I keep a set of new TTFSS for 40m in electronic
cabinet along the North arm.
The set number is #6. It is working |
|
|
3811
|
Thu Oct 28 16:38:54 2010 |
josephb | Update | CDS | Flaky fb, reverted inittab changes on fb | Problem:
Yuta reported many of the signals
being displayed by dataviewer "fuzzier" |
|
|
3810
|
Thu Oct 28 13:01:34 2010 |
steve | Update | PEM | crane repair guys left for the day |
|
|
|
3809
|
Thu Oct 28 11:54:31 2010 |
Koji | Update | Green Locking | checked frequency counter SR620 | ZHL-32A is a high power (well..., actually
middle power) amplifier with the max output
power of +29dBm (~1W!). |
|
|
3808
|
Thu Oct 28 09:16:17 2010 |
steve | Update | PEM | welding in the vertex area | Fire-smoke sensors in the vertex area #2-31,
2-30 east, 2-32 south/MC2 and 2-37 old control
room area are turned off to accommodate the |
|
|
3807
|
Thu Oct 28 04:28:50 2010 |
yuta | Update | Green Locking | checked frequency counter SR620 | (Kiwamu, Yuta)
Background: |
|
|
3806
|
Thu Oct 28 04:23:38 2010 |
rana | Update | IOO | A2L prep | To get the angle to length signal before
the c1ioo processor gets going, we need a
length signal. We can use either the error |
|
|
3805
|
Thu Oct 28 03:39:58 2010 |
yuta | Update | IOO | got very stable MC locking | (Rana, Suresh, Jenne, Kiwamu, Kevin,
Yuta)
|
|
|
3804
|
Thu Oct 28 03:21:35 2010 |
Suresh | Update | Locking | Aligned the MC2 transmission photodiode | Yuta and
Suresh
|
|
|
3803
|
Thu Oct 28 03:07:53 2010 |
kiwamu | Update | Green Locking | 80MHz VCO for green PLL : a health check | I
did a health check for a 80MHz VCO box. |
|
|
3802
|
Thu Oct 28 02:01:51 2010 |
Kevin | Update | PSL | Filter for 2W Laser | [Rana and Kevin]
I made a low pass filter for the
piezo driver for the 2W laser that is now |
|
|
3801
|
Wed Oct 27 21:51:29 2010 |
Suresh | Update | PSL | Attenuation of PSL NPRO removed | The laser
power was attenuated to 40 mW yesterday for
ensuring that the power built up within the |
|
|
3800
|
Wed Oct 27 21:33:42 2010 |
Suresh | Update | Locking | Green from the far end re-obtained |
The
mirror which was moved during the mode matching |
|
|
3799
|
Wed Oct 27 17:06:48 2010 |
josephb | Update | CDS | Moved c1iscey chassis and host interface board to c1ioo | Problem:
Need a working IO chassis connected |
|
|
3798
|
Wed Oct 27 16:15:35 2010 |
Suresh | Update | SUS | Re-glued magnet to the PRM | Thanh and I re-glued the magnet to the
PRM following the procedure outlined by Jenne
The PRM in the gluing fixture has |
|
|
3797
|
Wed Oct 27 15:38:19 2010 |
josephb, yuta | Update | CDS | IO chassis with bad timing was taken back to Downs | Problem:
The front end timing was not working
properly for 2 of the IO chassis. They |
|
|
3796
|
Wed Oct 27 12:32:53 2010 |
josephb | Update | CDS | fb rebooted to try and fix testpoints | Problem:
Test points were unavailable last
night, even after reboots of c1sus and even |
|
|
3795
|
Wed Oct 27 11:52:45 2010 |
josephb | Update | elog | Elog needed to be restarted | I had to restart the elog on Nodus because
it was no longer responding. |
|
|
3794
|
Wed Oct 27 11:34:40 2010 |
josephb | Update | CDS | Modified rc.local for front end machines | What was the problem:
On reboot, c1sus was in a strange
state. The epics IOC was running, along |
|
|
3793
|
Wed Oct 27 10:53:03 2010 |
josephb | Configuration | Computers | Why doesn't DTT work?!? | Test points for the SUS channels should
be there. They have been working previously
this week. Possibly break down points |
|
|
3792
|
Wed Oct 27 09:02:29 2010 |
steve | Update | Electronics | HP4195A is NOT fixed | www.avalontest.com has fixed the 25MHz
oscillation. Contact: Jim Burnham 760-536-0191
|
|
|
3791
|
Wed Oct 27 02:26:15 2010 |
kiwamu | Update | IOO | MC locked | (Rana, Koji, Suresh, Yuta, Thanh, Kiwamu)
M |
|
|
3790
|
Tue Oct 26 22:57:37 2010 |
Jenne | Configuration | Computers | Why doesn't DTT work?!? | DTT has only SUS and "X02" channels
under C1 in the drop down channel selection
menu. Basically, we can't measure any |
|
|
3789
|
Tue Oct 26 21:27:02 2010 |
Jenne | Update | CDS | fixed OPLEV stuff and MCL filters | Since MC2_TRANS is, in fact, MC2 Transmission,
and not an oplev at all (it's not red, and
it's not a lever, although it does use a |
|
|
3788
|
Tue Oct 26 17:31:17 2010 |
yuta | Update | CDS | fixed OPLEV stuff and MCL filters | (Joe, Yuta)
Background: |
|
|
3787
|
Tue Oct 26 16:02:55 2010 |
yuta | HowTo | CDS | things to do after making a new Simulink model | (Joe,Yuta)
Things to do after making a new Simulink |
|
|
3786
|
Tue Oct 26 15:57:10 2010 |
Jenne | Update | SUS | One magnet broken, reglued | [Jenne, Suresh, Thanh (Bram's Grad Student)]
When we removed the grippers from
the magnets on the PRM, one of the face magnets |
|
|
3785
|
Tue Oct 26 12:45:20 2010 |
yuta | HowTo | CDS | making a new master file for medm screens | (Joe, Yuta)
In elog |
|
|
3784
|
Tue Oct 26 10:50:08 2010 |
Koji | Configuration | elog | ELOG 2.8.0 -> ELOG 2.7.5 -> ELOG 2.8.0 | ELOG
restarted with 2.8.0 again.
|
|
|
3783
|
Tue Oct 26 07:02:05 2010 |
Alberto | Configuration | elog | ELOG 2.8.0 -> ELOG 2.7.5 |
|
|
|
3782
|
Tue Oct 26 01:53:21 2010 |
Joonho Lee | Update | Electronics | Fuction Generator removed. | Today
I worked on how to measure cable impedance
directly. |
|
|
3781
|
Tue Oct 26 00:45:08 2010 |
rana | Update | PSL | New NPRO Diagnostic Wiring | |
|
|
3780
|
Mon Oct 25 23:59:37 2010 |
Koji | Configuration | elog | ELOG 2.8.0 -> ELOG 2.7.5 | ELOG
reverted to 2.7.5 due to editing difficulties
|
|
|
3779
|
Mon Oct 25 23:10:06 2010 |
Koji | Update | IOO | MC is now flashing | [Suresh / Koji]
The MC |
|
|
3778
|
Mon Oct 25 20:20:59 2010 |
yuta, Joe | Update | CDS | DAQ channel number etc | [U][B]Summary:[/B][/U]
We split the old SDSEN filters to SDSEN,
SDSIDE, SDCOIL last week.
|
|
|
3777
|
Mon Oct 25 11:39:06 2010 |
Jenne | Update | SUS | Magnets glued to PRM | This morning I glued the magnets to the PRM.
Now we wait, and tomorrow afternoon (at
the earliest), Suresh and I can balance the |
|
|
3776
|
Mon Oct 25 02:25:21 2010 |
Koji | Update | PSL | Quarter Wave Plate Measurements | Q1. Suppose the laser beam has a certain
(i.e. arbitrary) polarization state but contains
only TEM00. Also suppose the PSB is perfect |
|