| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
4039
|
Thu Dec 9 23:17:47 2010 |
kiwamu | Update | SUS | beam pointing has been done | [Koji, Osamu and Kiwamu]
We |
|
|
4040
|
Fri Dec 10 09:58:57 2010 |
Aidan | Update | SUS | beam pointing has been done | Good news. I feel multi-chromatic-locking
success is just around the corner.
By the way, there's a new presentation |
|
|
4874
|
Fri Jun 24 00:13:24 2011 |
kiwamu | Update | ABSL | beam profile measurement of LWE | The
beam profile of the LWE (LightWave Electronics)
NPRO was measured. |
|
|
3570
|
Mon Sep 13 22:51:07 2010 |
tara,valera | Configuration | PSL | beam scan for RCAV | On Friday, Valera and I calculated the
modematching for reference cavity from AOM.
We scan the beam profile where the |
|
|
7527
|
Thu Oct 11 11:20:05 2012 |
janosch | Update | General | beam shape simulation, PRC | I started to create a Finesse model of
the PRC cavity. We have the phase maps for
the PRC and the two ITMs. I could not find |
|
|
4110
|
Wed Jan 5 03:06:02 2011 |
kiwamu | Update | IOO | beam spots on MC mirrors | I checked
the spot positions on MC1 and MC3 by running |
|
|
528
|
Tue Jun 10 08:37:18 2008 |
steve | Update | PSL | beam trap is being tested | High power beam trap is being tested just
west of FSS area on psl enclosure.
|
|
|
6648
|
Thu May 17 15:31:22 2012 |
steve | Update | General | beam trap posts & clamps for vacuum | Aluminum posts and SS clamps for
green glass traps in vacuum will be out of
the shops by June 6, 2012 the latest |
|
|
5047
|
Wed Jul 27 15:38:01 2011 |
steve | Update | VAC | beam traps for vacuum | We have cleaned, baked, rga scaned traps
for vacuum. Thorlabs LB1 on 1" OD ss
posts and forks. The effective surface area |
|
|
8087
|
Fri Feb 15 09:58:49 2013 |
Steve | Update | General | beam traps ready to be installed | Black-green glass traps are ready for light
in vacuum. I can assemble more if needed.
These three sizes are available. |
|
|
8089
|
Fri Feb 15 16:09:19 2013 |
Koji | Update | General | beam traps ready to be installed | For the hexagonal one, insert one of the
glass plate only half. Use a 1"x.5"
piece if exists. |
|
|
5872
|
Fri Nov 11 12:32:45 2011 |
Katrin | Update | Green Locking | beat PSL - YARM laser | [Suresh, Katrin]
Measured frequency fluctuation of
the beat between PSL and YARM lasers. |
|
|
4211
|
Thu Jan 27 11:04:27 2011 |
Koji | Update | Green Locking | beat freq scan | Experiment in the night of Jan 26.
o The arm was locked for the IR beam
and was aligned for it. |
|
|
4268
|
Thu Feb 10 05:06:35 2011 |
kiwamu | Update | Green Locking | beat noise : a little bit better, and 1Hz peak from amplitude noise coupling | I
repeated the same measurement as that Koji |
|
|
6302
|
Tue Feb 21 22:06:18 2012 |
jamie | Update | LSC | beatbox DFD installed in 1X2 rack | I have installed a proto version of the
ALS
beatbox delay-line frequency discriminator |
|
|
6794
|
Mon Jun 11 21:50:08 2012 |
yuta | Update | Green Locking | beatbox looks OK | Summary:
We need I-Q frequency deiscriminator
to control the arm length fine and continuously. |
|
|
734
|
Thu Jul 24 11:49:07 2008 |
Masha | Summary | Auxiliary locking | belated weekly summary | I designed a high pass filter to whiten the
spectrum from the Mach Zehnder to optimize
the
|
|
|
7342
|
Tue Sep 4 20:25:22 2012 |
jamie | Omnistructure | VAC | better in-air "lite" access connector needed | We really need something better to replace
the access connector when we're at air.
This tin foil tunnel crap is dumb. |
|
|
7343
|
Wed Sep 5 09:50:25 2012 |
Steve | Omnistructure | VAC | better in-air "lite" access connector needed |
|
|
|
7344
|
Wed Sep 5 10:50:15 2012 |
jamie | Omnistructure | VAC | better in-air "lite" access connector needed |
|
|
|
7345
|
Wed Sep 5 13:11:43 2012 |
jamie | Omnistructure | VAC | better in-air "lite" access connector needed |
|
|
|
7952
|
Tue Jan 29 10:59:37 2013 |
lazy person | Frogs | General | better plan |
I propose we work around this
problem with giant |
|
|
2670
|
Fri Mar 12 17:08:22 2010 |
steve | Configuration | VAC | bg-RGAscan at d18 | RGA scan of rga-region only at day 18
This is the back ground of the rga with some
calibration gas. |
|
|
11040
|
Mon Feb 16 21:52:51 2015 |
rana | HowTo | Treasure | big Dataviewer windows | Following this
entry, I have made the same change in
the controls account on rossa: |
|
|
15680
|
Tue Nov 17 13:24:40 2020 |
Chub | Update | General | big UPS on the way | Ordered 11/16 from CDW, on PO# S492940, the
high voltage Tripp Lite SMART5000XFMRXL |
|
|
894
|
Thu Aug 28 19:02:25 2008 |
rana, josephb, rob | Summary | Computers | big boot | This afternoon Joe did something with an .ini
file (look for his detailed elog entry) and
the computers went bad.
|
|
|
13731
|
Thu Apr 5 13:46:42 2018 |
gautam | Update | SUS | big earthquake | Seems like there was a 5.3 magnitude EQ
~10km from us (though I didn't feel it).
All watchdogs were tripped so our mirrors |
|
|
7923
|
Tue Jan 22 09:10:19 2013 |
Steve | Update | PEM | big foot is dirty | Please wipe, clean car wheels and wear
booties entering the 40m lab.
Obviously this person has no idea |
|
|
513
|
Tue Jun 3 10:19:45 2008 |
tobin | Configuration | Computers | big machine | Several of us transported the big new awesome
Sun box from Bridge over to
the 40m last week. If I recall correctly, |
|
|
3490
|
Mon Aug 30 22:45:49 2010 |
kiwamu | Update | CDS | binary outputs for the new CDS | { Joe and Kiwamu }
Today we made some efforts to
get the binary outputs (BOs) working. |
|
|
6616
|
Mon May 7 21:05:38 2012 |
Den | Update | CDS | biquad filter form | I wanted to switch the implementation of
IIR_FILTER from DIRECT FORM II to BIQUAD
form in C1IOO and C1SUS models. I modified |
|
|
6622
|
Tue May 8 09:47:53 2012 |
Jamie | Update | CDS | biquad filter form |
|
|
|
6624
|
Tue May 8 10:43:42 2012 |
Den | Update | CDS | biquad filter form |
|
|
|
7041
|
Thu Jul 26 17:39:49 2012 |
Den | Update | digital noise | biquad key is working | I've filtered a 1 Hz sin wave excitation
with a notch filter inside c1sus and c1rfm
models. The biquad key is switched on in |
|
|
7045
|
Fri Jul 27 14:30:49 2012 |
Jamie | Update | digital noise | biquad key is working | What is "DQF"? Is that
the biquad? And what is the difference
between DF1 and DF2? Why don't you |
|
|
7050
|
Mon Jul 30 14:24:25 2012 |
Den | Update | digital noise | biquad key is working |
|
|
|
6748
|
Sun Jun 3 23:50:00 2012 |
Den | Update | CDS | biquad=1 | From now all models calculate iir filters
using biquad form. I've added biquad=1 to
cdsParameters to all models except c1cal, |
|
|
4597
|
Mon May 2 13:43:05 2011 |
steve | Frogs | Photos | birthday boys | .....Happy.... Birthday.... to.... Joseph...
and... Jamie...Happy....Birthday..... to....
You............sing with us........Happy |
|
|
11972
|
Wed Feb 3 08:39:17 2016 |
Steve | Update | CDS | blank daily summary pages | Daily summary pages are blank today. Yesterday
is ok |
|
|
7545
|
Mon Oct 15 08:12:45 2012 |
Steve | Update | VAC | blank vac monitor | VME
crate blew its fuse and the fuse
housing is hard to access. |
|
|
1184
|
Sun Dec 7 16:12:53 2008 |
rana | Update | DAQ | booted awg | [SIZE=3]because it was [COLOR=red]red[/COLOR][/SIZE] |
|
|
12389
|
Tue Aug 9 19:35:49 2016 |
rana | Update | SEI | both Guralp seismometers are functioning and being acquired | After
some cable swapping, we now have both Guralp
seismometers running and the times series |
|
|
6840
|
Wed Jun 20 18:09:23 2012 |
yuta | Update | Locking | both arms aligned, ITMX oplev centered | [Jenne, Yuta]
We aligned FPMI. I also centered ITMX |
|
|
8162
|
Mon Feb 25 21:25:14 2013 |
yuta | Update | Alignment | both arms locked in IR | [Jenne, Evan, Yuta]
After Y alignment, X arm is aligned |
|
|
12448
|
Fri Aug 26 17:48:14 2016 |
gautam | Update | SUS | bounce mode coupling reduction | We worked on reducing the bounce mode coupling
into the sensor signals today. After some
trial and error, essentially following the |
|
|
456
|
Sun Apr 27 18:11:58 2008 |
rob | DAQ | Computers | br40m? |
The testpoint manager (which runs on fb40m)
crashed this afternoon. Upon re-starting |
|
|
457
|
Sun Apr 27 22:57:15 2008 |
ajw | DAQ | Computers | br40m? | [quote]
The testpoint manager (which runs on fb40m)
crashed this afternoon. Upon re-starting |
|
|
3832
|
Mon Nov 1 10:17:55 2010 |
steve | Update | General | breakers relabelled | Pedro of the electrical shop helped to
retrace wires from the racks to the breakers.
Many wrong labels were replaced. These labels |
|
|
2420
|
Tue Dec 15 21:39:34 2009 |
Alberto | Update | ABSL | brief summary of this afternoon's measurements | I took measurements of the open loop
gain of the AbsL PLL with the old Universal
PDH Box.
I Also measured the |
|
|
5978
|
Tue Nov 22 15:18:18 2011 |
kiwamu | Update | Green Locking | broad band noise depends on the gain of Y green PDH. and comaprator broken |
|
|