| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8750
|
Tue Jun 25 23:57:30 2013 |
rana | Update | SUS | NDS2 Status | I've restarted the NDS2 process on Megatron
so that we can use it for getting past data
and eventually from outside the 40m. |
|
|
8751
|
Wed Jun 26 00:15:51 2013 |
Annalisa | Update | Green Locking | ETMY - green locking and beat note setup | [Koji, Annalisa]
Alignment improving
The alignment of the green |
|
|
8753
|
Wed Jun 26 04:38:02 2013 |
Jenne | Update | LSC | PRCL locking again - ASC success | With Rana's help/supervision/suggestions,
I have closed the loop on the PRMI ASC servo
with the new QPD. I think I've |
|
|
8754
|
Wed Jun 26 11:32:11 2013 |
Manasa | Update | Green Locking | c1als model edited | I have added more DAQ channels to the c1als
model. Installed and restarted the model
on c1ioo. Frame builder restarted. |
|
|
8755
|
Wed Jun 26 11:45:06 2013 |
gautam | Update | General | PID tuning-Doubling Oven at Y end |
Summary
Having established the serial link |
|
|
8756
|
Wed Jun 26 13:37:13 2013 |
Jenne | Update | IOO | MC very misaligned - put back | Not sure why it was so poorly aligned,
since the misalignment "event"
happened while we were all away at lunch, |
|
|
8757
|
Wed Jun 26 15:11:08 2013 |
John Zweizig | Update | SUS | NDS2 Status |
|
|
|
8758
|
Wed Jun 26 19:02:38 2013 |
gautam | Update | General | ITMx Oplev (not quite?) Fixed |
Summary:
Steve and I tried to fix the Oplev |
|
|
8759
|
Wed Jun 26 21:52:55 2013 |
Charles | Update | ISS | CTN Servo Prototype Characterization | Following the circuit
design in elog 8748, I constructed
a prototype for the servo portion of the |
|
|
8760
|
Wed Jun 26 23:32:15 2013 |
Manasa | Update | Green Locking | c1als model edited | I have modified the ALS model to now include
PHASE_OUT calibration for both X and Y. MEDM
screen has not been edited to include these |
|
|
8761
|
Thu Jun 27 02:44:33 2013 |
rana | Update | Green Locking | c1als model edited | Could be that this is OK, but it
doesn't yet make sense to me. Can you please
explain in words how this manages to apply |
|
|
8762
|
Thu Jun 27 05:44:51 2013 |
rana | Update | | 40MARS wireless network problems |
|
|
|
8763
|
Thu Jun 27 10:45:41 2013 |
Steve | Update | General | 40MARS wireless network problems |
|
|
|
8764
|
Thu Jun 27 15:50:03 2013 |
Jenne | Update | PEM | BLRMS are going crazy | The BLRMS are totally crazy today!
I'm not sure what the story is, since it's
been this way all day (so it's not an earthquake, |
|
|
8765
|
Thu Jun 27 15:58:27 2013 |
Steve | Update | PEM | PSL enclosure particle counts |
Particle counts were measured
inside the PSL enclosure at 40VAC variac |
|
|
8766
|
Thu Jun 27 17:04:49 2013 |
Jenne | Update | safety | Nitrogen bottle too hot - overpressured | All of us in the control room / desk area
heard a sudden whoosh of air a few minutes
ago. It kind of sounded like a pressure |
|
|
8767
|
Thu Jun 27 17:09:41 2013 |
Jenne | Update | LSC | PRCL locking again - POP PIT work | Last night before dinner, I copied over
the ASC yaw servo filters to the ASC pitch
filter bank. Using ASC gain of +0.001, |
|
|
8768
|
Thu Jun 27 17:41:08 2013 |
Annalisa | Update | Green Locking | ETMY -beat note found! |
Y |
|
|
8769
|
Thu Jun 27 17:49:17 2013 |
manasa | Update | Green Locking | c1als model edited |
|
|
|
8770
|
Thu Jun 27 18:11:53 2013 |
gautam | Update | General | ITMx Oplev-POX looks beam okay |
Jenne just aligned the X arm
and I got a chance to check the status of |
|
|
8771
|
Thu Jun 27 18:24:25 2013 |
Charles | Update | ISS | CTN Servo Prototype Characterization - Done Correctly | As I showed in [elog
8759], measuring the transfer function
of my prototype servo was difficult due to |
|
|
8772
|
Thu Jun 27 19:17:03 2013 |
manasa | Update | LSC | Xarm ALS out-of-loop noise | Measured
frequency noise is ~10Hz/rtHz @100Hz. |
|
|
8773
|
Thu Jun 27 21:45:48 2013 |
rana | Update | PEM | BLRMS are going crazy | Its an increase in the microseismic peak.
Don't know what its due to though. |
|
|
8774
|
Thu Jun 27 21:59:42 2013 |
rana | Update | Computer Scripts / Programs | Matlab upgraded | I moved the old matlab directory from /cvs/cds/caltech/apps/linux64/matlab_o |
|
|
8775
|
Thu Jun 27 22:05:25 2013 |
rana | Update | General | Pianosa fixed | The keyboard on Pianosa workstation has
been flaky for the last several days at least.
Today, it was having troubles mounting the |
|
|
8777
|
Thu Jun 27 23:01:39 2013 |
gautam | Update | General | ITMx Oplev-servo gains adjusted |
With rana's input, I changed
the ITMx oplev servo gains given the beam |
|
|
8778
|
Thu Jun 27 23:18:46 2013 |
jamie | Update | Computer Scripts / Programs | WARNING: Matlab upgraded |
|
|
|
8779
|
Fri Jun 28 02:12:21 2013 |
manasa | Update | LSC | PRMI + X arm ALS | X arm stabilized
using ALS while PRMI stayed locked |
|
|
8780
|
Fri Jun 28 02:12:41 2013 |
Jenne | Update | LSC | PRCL locking again - ASC work | Rana had the epiphany that I didn't have
any antiwhitening for my POP QPD. Ooops.
We looked at the schematic for the |
|
|
8781
|
Fri Jun 28 02:23:00 2013 |
Jenne | Update | LSC | Need to measure sensing matrix at REFL165 | [Lisa, Rana, Jenne]
Lisa asked to see a model of the
PRMI sensing matrix with REFL165 included, |
|
|
8782
|
Fri Jun 28 11:33:32 2013 |
Steve | Update | | 40MARS wireless network problem |
|
|
|
8783
|
Fri Jun 28 12:15:09 2013 |
Koji | Update | LSC | Need to measure sensing matrix at REFL165 | There is no sensible REFL165 PD in the
lab. I am supposed to prepare a new version
of REFL165 using prototype BBPD. |
|
|
8784
|
Fri Jun 28 13:10:28 2013 |
gautam | Update | General | ITMx Oplev-servo gains adjusted |
As mentioned in elog
8770, I wanted to give the POX beam a |
|
|
8785
|
Fri Jun 28 14:57:15 2013 |
Steve | Update | General | closing lab doors | I found the south end emergency doors not
latched completely. There was a ~ 3/8"
vertical gap from top to bottom. |
|
|
8786
|
Fri Jun 28 16:19:06 2013 |
Charles | Update | ISS | 40m Noise Budget - Seismic Contribution | I'm working on developing a full
noise budget for the 40m. To that end, I'll
use measurements from the GUR1 seismometer |
|
|
8787
|
Fri Jun 28 17:33:33 2013 |
John Zweizig | Update | SUS | NDS2 Status |
|
|
|
8788
|
Mon Jul 1 23:27:07 2013 |
Jenne | Update | LSC | Sensing Matrix vs. Xarm sweep | I have modeled the PRMI sensing matrix
as I bring the Xarm into resonance.
In optickle, I have the PRMI on sideband |
|
|
8789
|
Tue Jul 2 00:25:14 2013 |
gautam | Update | Green Locking | Universal PDH box tuning | [Koji, Annalisa, Gautam]
Annalisa noticed that over the weekend
the Y-arm green PDH was locked to a sideband, |
|
|
8790
|
Tue Jul 2 02:29:47 2013 |
Jenne | Update | LSC | Sensing Matrix vs. Xarm sweep | Here is the Sensing Matrix movie (sorry
for the iffy quality - my movies usually
come out better than this): |
|
|
8791
|
Tue Jul 2 12:59:46 2013 |
Charles | Update | ISS | General Design for ISS Applicable to Multiple Applications | While attempting to develop a somewhat
accurate noise budget for the 40m, I reasoned
that while the shape of the transfer function |
6x |
|
8792
|
Wed Jul 3 01:49:46 2013 |
Annalisa | Update | Green Locking | ALS servo configuration | [Koji, Annalisa, Manasa]
Today we worked on the ALS servo
stabilization for the Y arm. |
|
|
8793
|
Wed Jul 3 03:06:29 2013 |
Annalisa | Update | Green Locking | ALS servo configuration |
I realized that I cannot open the
attached plots. I'll fix them tomorrow. |
|
|
8794
|
Wed Jul 3 10:39:25 2013 |
manasa | Update | IOO | MC aligned and WFS enabled | I found WFS had been left disabled from
sometime yesterday. I don't see anyone mentioning
when and why they had turned OFF the WFS |
|
|
8799
|
Wed Jul 3 20:51:43 2013 |
Charles | Update | ISS | Proposed ISS for CTN Experiment - Altium Schematic | After familiarizing myself with Altium,
I drew up the attached schematic for the
ISS to be used in the CTN experiment. The |
|
|
8801
|
Thu Jul 4 01:09:33 2013 |
Annalisa, Koji | Update | LSC | PRMI locked with REFL165 | Summary:
-
The new REFL165 PD was installed on the AP |
|
|
8802
|
Thu Jul 4 17:14:53 2013 |
rana | Update | SUS | New SUS screen | Now that the 3f locking looks so
cool for the PRMI, I suppose that the PRMI
+ arm stuff will be very successful. |
|
|
8803
|
Thu Jul 4 19:37:37 2013 |
Koji | Update | SUS | New SUS screen | Totally agree. The old suspension screen
should be driven away. |
|
|
8805
|
Mon Jul 8 15:31:48 2013 |
Jenne | Update | ASC | POP QPD calibration prep | I am prepping to do the POP QPD calibration,
and so have turned off the POP QPD, and put
it onto a micrometer stage. My plan |
|
|
8806
|
Mon Jul 8 16:27:49 2013 |
Alex | Update | | Planned rack additions | Alex and Eric
For the photodetector frequency response
automation project, we plan to add modules |
|
|
8807
|
Mon Jul 8 21:46:31 2013 |
manasa | Update | Green Locking | Beatbox | [Koji, Manasa]
I wanted to investigate on the ALS
electronics(in particular the beatbox and |
|