| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2999
|
Thu May 27 09:43:50 2010 |
rana | Update | Green Locking | more details |
|
|
|
2998
|
Thu May 27 08:22:57 2010 |
Aidan | Update | Computers | Restarted the elog this morning | |
|
|
2997
|
Thu May 27 02:22:24 2010 |
kiwamu | Update | Green Locking | more details | Here are some more plots
and pictures about the end PDH locking with |
|
|
2996
|
Wed May 26 22:22:03 2010 |
Alberto | Configuration | 40m Upgrading | Arm cavity length | The second sideband is resonant in the
arms for a cavity length of 37.9299m.
The nearest antiresonant arm lengths |
|
|
2995
|
Wed May 26 18:54:55 2010 |
Aidan | Summary | Green Locking | Mounted Crystal 724 in the Doubling Oven | Andri and I mounted the Raicol Crystal
#724 in one of the new Covesion Ovens. The
procedure was the same as before - see |
|
|
2994
|
Wed May 26 17:10:09 2010 |
Alberto | Update | 40m Upgrading | RF Generation box | This is how the RF generation box might
soon look like:
|
|
|
2993
|
Wed May 26 15:34:00 2010 |
Jenne | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring |
|
|
|
2992
|
Wed May 26 14:38:02 2010 |
Koji | Update | Green Locking | locked | Congratulation! Probably you are right,
but I could not get this is a real lock or
something else. |
|
|
2991
|
Wed May 26 14:28:01 2010 |
Koji | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring | That's true. But I thought that you measured
the mode after those optics and the effect
of them is already included. |
|
|
2990
|
Wed May 26 12:59:26 2010 |
josephb | Update | CDS | Created sus, sup, scx, spx models | I created the sus model, which is the suspension
controller for ITMX, ITMY, BS, PRM, SRM.
I also created sup, which is the suspension |
|
|
2989
|
Wed May 26 10:58:29 2010 |
josephb | Update | CDS | New RCG checkout for use with all machines plus some issues | Now that we have multiple machines we'd
like to run the new front end code on, I'm
finding it annoying to have to constantly |
|
|
2988
|
Wed May 26 04:14:21 2010 |
kiwamu | Update | Green Locking | locked | I guess
I succeeded in locking of the cavity with |
|
|
2987
|
Wed May 26 00:50:16 2010 |
Jenne | Update | IOO | Mirrors moved in prep for round 2 of MC mode measuring | [Jenne, Kevin, Kiwamu]
We moved some optics in preparation
for measuring the MC mode after the first |
|
|
2986
|
Tue May 25 17:22:56 2010 |
Kevin | Update | IOO | Beam Profile After Mode Cleaner |
|
|
|
2985
|
Tue May 25 17:09:22 2010 |
Koji | Update | IOO | Beam Profile After Mode Cleaner | Very nice as usual. Can you add the curve
to show the ideal mode of the MC on the profile
plot? |
|
|
2984
|
Tue May 25 17:04:37 2010 |
Kevin | Update | | Beam Profile After Mode Cleaner | I fit the data from the beam profile that
Jenne measured on 5/21/2010. The distances
are measured from halfway between MC1 and |
|
|
2983
|
Tue May 25 16:40:27 2010 |
josephb, alex | Update | CDS | Finally tracked down why new models wouldn't talk to each other | The problem with the new models using the
new shared memory/dolphin/RFM defined as
names in a single .ipc file. |
|
|
2982
|
Tue May 25 16:32:26 2010 |
kiwamu | HowTo | Electronics | front ends are back | [Alex, Joe, Kiwamu]
Eventually |
|
|
2981
|
Tue May 25 10:06:09 2010 |
kiwamu | Update | Electronics | bad power supply of a vme rack | I
got a VME crate from Peter's lab. It is already |
|
|
2980
|
Tue May 25 09:12:46 2010 |
kiwamu | Configuration | Green Locking | effect from air conditioner | We should
completely turn off the air conditioner when |
|
|
2979
|
Tue May 25 07:58:23 2010 |
kiwamu | Update | elog | elog down | I found the elog got down around 7:30 am
in this morning.
So I restarted it by running the |
|
|
2978
|
Tue May 25 07:22:59 2010 |
kiwamu | Update | Electronics | bad power supply of a vme rack | Notes on May 25th
|
|
|
2977
|
Tue May 25 00:10:24 2010 |
Zach | Update | IOO | IMC table leveled again | The IMC table had to be leveled again,
for two reasons: 1) It was un-leveled when
Jenne and Kiwamu removed an extra beam dump |
|
|
2976
|
Mon May 24 16:34:22 2010 |
Kevin | Update | PSL | ND Filters for 2W Beam Profile | I tried to measure the beam profile of
the 2W laser today but ran into problems
with the ND filters. With the measurements |
|
|
2975
|
Mon May 24 14:28:35 2010 |
kiwamu | Update | Electronics | bad power supply of a vme rack | In this morning I found daqawg didn't work.
After looking for the cause, I found |
|
|
2974
|
Mon May 24 11:32:05 2010 |
rana | Update | LSC | 40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. |
|
|
|
2973
|
Mon May 24 10:03:14 2010 |
rana | Update | LSC | 40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. |
If you have a working 40m Optickle
model, put it in a common place in the SVN, |
|
|
2972
|
Mon May 24 07:53:57 2010 |
steve | Configuration | PEM | air cond. just turned ON | IFO room temp 27.5C , Please remember to
turn AC back on ! |
|
|
2971
|
Fri May 21 16:41:38 2010 |
Alberto, Jo | Update | Computers | It's a boy! | Today the new Dell computer for the GSCS
(General SURF Computing Side) arrived.
We put it together and hooked it |
|
|
2970
|
Fri May 21 16:37:35 2010 |
steve | Configuration | VAC | tp3's drypump replaced | Bob replaced the tipseal in an other drypump
and I swapped it in. TP3 turbo is running
again, it's foreline pressure is 40 mTorr. |
|
|
2969
|
Fri May 21 16:27:45 2010 |
Alberto | Omnistructure | Environment | The control room is molding... | ... not just because we haven't locked
the interferometer for quite some time. I
mean, it literally stinks. The chiller's |
|
|
2968
|
Fri May 21 16:24:11 2010 |
Koji | Update | LSC | 40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. | 1. Give us the designed arm length. What
is the criteria?
2. The arm lengths got shorter as |
|
|
2967
|
Fri May 21 14:31:46 2010 |
josephb,alex | Update | CDS | New computer and IO chassis working in 1X4 | Alex brought over a ADC, DAC, and PCIe
card which goes into the computer and talk
to the IO chassis. We tried installing |
|
|
2966
|
Fri May 21 11:56:34 2010 |
Alberto | Update | 40m Upgrading | 40mUpgrade Field Power and RF Power Spectrum at the ports. 38m/38.55m arm length issue. | I update my old 40mUpgrade Optickle model,
by adding the latest updates in the optical
layout (mirror distances, main optics transmissivities, |
7x |
|
2965
|
Fri May 21 08:28:29 2010 |
steve | Configuration | VAC | TP3 turned off |
|
|
|
2964
|
Fri May 21 00:51:06 2010 |
Jenne | Update | IOO | First MC mode measuring (hopefully) done | [Jenne, Kiwamu, Steve]
Round 1 of measuring the MC mode
is pretty much done. Yay. |
|
|
2963
|
Fri May 21 00:30:44 2010 |
Jenne | Update | VAC | TP3 fore pump is very loud | [Jenne, Kiwamu, and Steve via phone]
Around 9:30pm, Kiwamu and I came
back from dinner, and were getting ready |
|
|
2962
|
Fri May 21 00:21:24 2010 |
Jenne | Update | SAFETY | Don't walk down the Y(new convention) arm tonight! | All clear.
|
|
|
2961
|
Thu May 20 20:03:37 2010 |
Jenne | Update | SAFETY | Don't walk down the Y(new convention) arm tonight! | Please don't go
down the Yarm (Old Xarm) for right now, or |
|
|
2960
|
Thu May 20 14:18:59 2010 |
kiwamu | Update | Green Locking | mode profile of 40m cavity | The mode
profile of the green beam going through 40m |
|
|
2959
|
Thu May 20 13:29:40 2010 |
kiwamu | Update | Green Locking | mode profile at PPKTP crystal | I measured again the mode profile
of the beam going through the PPKTP crystal
by using the beam scan. |
|
|
2958
|
Thu May 20 13:12:28 2010 |
josephb | Update | CDS | Preparations for testing lsc,lsp, scy,spy together | In /cvs/cds/caltech/target/fb modified:
master: cleaned up so only io1 (IO
processor), LSC, LSP, SCY, SPY were listed, |
|
|
2957
|
Thu May 20 12:34:46 2010 |
kiwamu | Configuration | 40m Upgrading | optical breadboards with legs | Yesterday Steve and I revived two legs
to mount some optical breadboards outside
of the end table. |
|
|
2956
|
Thu May 20 12:10:44 2010 |
kiwamu | Update | Photos | ETMY end table | I updated the photo of ETMY end table
on the wiki.
http://lhocds.ligo-wa.caltech.edu:8000/40m/Optical_Tables |
|
|
2955
|
Thu May 20 10:06:56 2010 |
Aidan | HowTo | Phase Camera | Phase Camera- raw data video | |
|
|
2954
|
Wed May 19 22:28:05 2010 |
Koji | Update | IOO | Hooray! We locked the MC! (and some other stuff) | Good! What was the key?
The MC2 spot looks very high, but
don't believe the TV image. Believe the result |
|
|
2953
|
Wed May 19 16:09:11 2010 |
josephb | Update | CDS | Racks to small for IO Chassis rails | So I discovered the hard way that the racks
are not standard width, when I was unable
to place a new IO chassis into the racks |
|
|
2952
|
Wed May 19 16:00:18 2010 |
Jenne | Update | IOO | Hooray! We locked the MC! (and some other stuff) | [Jenne, Kevin]
We opened up the MC chambers again,
and successfully got the MC locked today! |
|
|
2951
|
Wed May 19 14:36:46 2010 |
Aidan | HowTo | Phase Camera | Phase Camera algorithm and stuff | I had a think about the algorithm
we might use for the phase camera measurement.
MATLAB has an fft function that will allow |
|
|
2950
|
Tue May 18 23:03:08 2010 |
Jenne | Update | IOO | No real progress.... | [Jenne, Kevin]
No real progress today. We
opened the chambers and again tried to lock |
|