| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
3951
|
Thu Nov 18 23:45:18 2010 |
rana | Configuration | PSL | PMC Refl Cam | Valera
and Haixing and I installed a PMC REFL camera |
|
|
3950
|
Thu Nov 18 17:42:20 2010 |
Joonho Lee | Summary | Electronics | CCD cables. | I finished
the direct measurement of cable impedances.
Moreover, |
|
|
3949
|
Thu Nov 18 16:42:29 2010 |
Joonho Lee | Configuration | Electronics | Quad Video for PMCT, RCT, RCR fixed. | The far
right monitor in the control room is now
displaying IMCR, PMCT, RCR, RCT. |
|
|
3948
|
Thu Nov 18 16:32:21 2010 |
yuta | Summary | CDS | current damping status for all optics c1sus handles | Summary:
I set Q-values for each
ringdown of PRM, BS, ITMX, ITMY, MC1, MC2, |
|
|
3947
|
Thu Nov 18 14:19:01 2010 |
josephb | Update | CDS | Swapped c1auxex and c1auxey codes | Problem:
We had not switched
the c1aux crates when we renamed the arms, |
|
|
3946
|
Thu Nov 18 14:05:06 2010 |
josephb, yuta | Update | CDS | c1sus is alive! | Problem:
We broke c1sus by moving ADC cards
around. |
|
|
3945
|
Thu Nov 18 11:06:20 2010 |
josephb | Update | CDS | c1sus and ADCs | Problem:
ADCs are timing out on c1sus when
we have more than 3. |
|
|
3944
|
Thu Nov 18 01:52:58 2010 |
Kevin | Update | Electronics | REFL55 Transfer Functions | I measured the optical and electrical transfer
functions for REFL55 and calculated the RF
transimpedance. To measure the optical transfer |
|
|
3943
|
Thu Nov 18 00:40:31 2010 |
yuta | Update | IOO | PRM reflected beam reached AP table | (Kiwamu, Yuta)
Summary: |
|
|
3942
|
Wed Nov 17 23:45:20 2010 |
Jenne | Update | SUS | A bad day for suspensions | [Jenne, Suresh]
Today has been a downright miserable
day in the world of suspension work. Thumbs |
|
|
3941
|
Wed Nov 17 20:44:59 2010 |
yuta | Summary | CDS | no QPD channels on c1sus machine today | (Joe, Suresh, Yuta)
|
|
|
3940
|
Wed Nov 17 16:02:30 2010 |
josephb | Update | CDS | Modified feCodeGen.pl to fix filtMuxMatrix name generation | Problem:
Sometime in the last 3 weeks, probably
when Alex brought his latest changes from |
|
|
3939
|
Wed Nov 17 15:49:53 2010 |
rana | Update | DAQ | Ole Channel Names | The following channels should be named
as below to keep in line with their names
pre-upgrade rather than use _DAQ in the name. |
|
|
3938
|
Wed Nov 17 10:39:20 2010 |
josephb | Update | CDS | Screen Time Fix | An improved python code to apply a replacement
to all *.adl files in a directory would be:
import |
|
|
3937
|
Wed Nov 17 02:53:41 2010 |
yuta | Update | IOO | placed new PRM to BS table | (Kiwamu, Yuta)
Background: |
|
|
3936
|
Tue Nov 16 23:36:29 2010 |
Suresh, Jenne | Update | SUS | Assembly of ETMs | [Jenne,
Suresh]
|
|
|
3935
|
Tue Nov 16 21:42:31 2010 |
rana | Update | CDS | Screen Time Fix | I learned today that the following python
code will do a find/replace to fix the TIME
string on any MEDM screen which has a whited |
|
|
3934
|
Tue Nov 16 16:00:26 2010 |
Aidan | Update | Green Locking | PID loop but no green |
|
|
|
3933
|
Tue Nov 16 15:32:18 2010 |
valera | Update | Electronics | OSEM noise at the output of the satellite box | I measured the SRM OSEM (no magnets
at the moment) noise out of the satellite
box with a SRS785 spectrum analyzer. I inserted |
|
|
3932
|
Tue Nov 16 12:47:30 2010 |
Aidan | Update | Green Locking | PID loop but no green | The PID loop is ready to be run on the
green beat note but, since the tanks are
open, there is no green transmission from |
|
|
3931
|
Tue Nov 16 10:47:45 2010 |
Aidan | Update | Green Locking | Rebooted c1psl - added new GRNBEAT_FREQ channel | I restored C1:PSL-126MOPA_126MON to its
original settings (EGUF = -410, EGUL = 410)
and added a new calc channel called C1:LSC-EX_GRNBEAT_FREQ |
|
|
3930
|
Tue Nov 16 09:02:54 2010 |
Aidan | Update | Green Locking | PID loop - calibration of SR620 output | [Aidan, Kiwamu]
Kiwamu and I roughly calibrated the
analogue output from the SR620 frequency |
|
|
3929
|
Tue Nov 16 03:33:22 2010 |
yuta | Update | IOO | aligned Faraday, beam reached SM just before PRM | (Koji, Yuta)
|
|
|
3928
|
Mon Nov 15 22:24:28 2010 |
Suresh | Update | SUS | Selection of Magnets | I have
selected a set of 16 magnets which have a
B field between 900 to 950 Gauss (5% variation) |
|
|
3927
|
Mon Nov 15 17:10:59 2010 |
kiwamu | Update | Green Locking | PLL with real green signal | I
checked the slow servo and the PLL of 80MHz |
|
|
3926
|
Mon Nov 15 16:26:46 2010 |
josephb | Update | CDS | c1iscex is now running and the network hasn't died | Problem:
c1iscex was spamming the network
with error messages. |
|
|
3925
|
Mon Nov 15 16:09:44 2010 |
Jenne | Update | VAC | ETMX, ETMY, ITMY chambers opened | [Steve, Jenne, Suresh, Koji]
The remaining test mass chambers
have been opened, and have light doors in |
|
|
3924
|
Mon Nov 15 15:02:00 2010 |
Koji | Summary | PSL | power measurements around the PMC | [Valera Yuta Kiwamu Koji]
Kiwamu burtrestored c1psl. We measured
the power levels around the PMC. |
|
|
3923
|
Mon Nov 15 15:01:51 2010 |
kiwamu | Update | IOO | realigned the wideband EOM | Since we are going to lock the MC today,
I
aligned it back to the default place. |
|
|
3922
|
Mon Nov 15 14:42:01 2010 |
Aidan | Update | PSL | C1PSL rebooted? | Yeah. Joe and I rebooted c1psl a couple
of times this morning. I didn't realize the
burtrestore wasn't automatic. |
|
|
3921
|
Mon Nov 15 14:36:37 2010 |
Koji | Update | PSL | C1PSL rebooted? | Has C1PSL rebooted? Has burtrestore been
forgotten? Even without elog?
We found some settings are wrong |
|
|
3920
|
Mon Nov 15 11:52:22 2010 |
kiwamu | Update | Green Locking | PLL with real green signal | |
|
|
3919
|
Mon Nov 15 11:13:12 2010 |
josephb | Update | CDS | Modified rc.local to not start mx_streams automatically | Problem:
c1iscex floods the network with about
1 gigabyte of error messages in a few seconds, |
|
|
3918
|
Mon Nov 15 04:57:10 2010 |
rana | Update | Electronics | SRM side OSEM noise with no magnet | IF I believe this calibration and IF I
believe that the noise is the same with no
magnet in there, then its almost 1 |
|
|
3917
|
Sun Nov 14 16:40:46 2010 |
Jenne | Update | Treasure | Activities related to OSEM measurement | [Valera, Jenne]
We pondered the idea of clamping
the PRM optic to measure the OSEM noise. |
|
|
3916
|
Sun Nov 14 16:26:31 2010 |
jenne, valera | Update | Electronics | SRM side OSEM noise with no magnet | We realized that the SRM sensors are connected
to the readout but just sitting on the BS
in vacuum table with no magnets and therefore |
|
|
3915
|
Sun Nov 14 11:56:59 2010 |
valera | Update | CDS | Test of ADC noise |
We missed |
|
|
3914
|
Sun Nov 14 02:59:31 2010 |
rana | Configuration | General | MEDM snapshots web page | Since Nodus is a Solaris machine it can
barely handle doing the ImageMagick commands
(such as convert and import). I removed |
|
|
3913
|
Sat Nov 13 16:57:21 2010 |
valera | Configuration | Electronics | PRM Side OSEM transimpedance change | Now that we have increased the range of
the AA to +/- 10 V I have increased the PRM
side OSEM transimpedance from 29 kV/A to |
|
|
3912
|
Sat Nov 13 15:53:05 2010 |
yuta | Update | CDS | diagonalization of MC input matrix | Motivation:
MC is aligned from the A2L
measurement, but to do the beam centering |
|
|
3911
|
Fri Nov 12 20:40:51 2010 |
josephb, yuta, valera | Configuration | Electronics | AA voltage range | We changed the range of the two SUS AA
boards in the corner from +/-2 V to +/-10
V by changing the supply voltage from +/-5 |
|
|
3910
|
Fri Nov 12 19:24:56 2010 |
Koji | Update | CDS | Test of ADC noise | [Koji Yuta]
We found one of the ADC cables were
left unconnected. This left the MC suspensions |
|
|
3909
|
Fri Nov 12 13:12:55 2010 |
kiwamu | Update | PSL | increased NPRO power | I maximized
the laser power by rotating the HWP after |
|
|
3908
|
Fri Nov 12 12:06:11 2010 |
Aidan | Configuration | Green Locking | PID script working - now it needs to be tuned | I've set up a PID script that senses
the EX-PSL Green Beat note (from the frequency
counter) and actuates on the temperature |
|
|
3907
|
Fri Nov 12 11:36:06 2010 |
Aidan | Configuration | Computers | Fixed the PERL PATH errors from the scripts directory change | I've been trying to get a PID loop
running for the green locking and I've discovered
that some of the directories in the path |
|
|
3906
|
Fri Nov 12 10:49:34 2010 |
josephb, valera | Update | CDS | Test of ADC noise | Test:
Look at the effects of the ADC voltage
range on the ADC noise floor. |
|
|
3905
|
Fri Nov 12 06:10:24 2010 |
yuta | Update | IOO | MC aligned (without coil balancing) | Background:
Last night, we found that one
of DAC channels are poorly connected, so |
|
|
3904
|
Fri Nov 12 02:51:20 2010 |
Kevin | Update | Electronics | Photodiode Testing | [Jenne and Kevin]
I started testing the REFL55 photodiode.
With a light bulb, I saw ~270 mV of DC voltage |
|
|
3903
|
Fri Nov 12 00:42:11 2010 |
rana, koji | Update | IOO | MC alignment | We decided to ignore the computer script
outputs for the beam positions and use instead
the eyeball method to get the beam into the |
|
|
3902
|
Fri Nov 12 00:13:34 2010 |
Suresh | Update | SUS | ETM assembly started | [Jenne,
Suresh]
Selection |
|