ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1
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Wed Oct 17 18:46:33 2007 |
rana | Configuration | General | eLog Change | This is the first entry in the [U]new[/U]
40m eLog.
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2
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Thu Oct 18 14:52:35 2007 |
rana | Routine | ASC | test | [B]test[/B]
[LINE]X-(:P;(:)) |
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3
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Thu Oct 18 15:03:14 2007 |
ajw | Routine | General | this is only a test | [IMG]elog:3/1[/IMG]
[IMG]elog:3/2[/IMG] |
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5
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Fri Oct 19 16:11:38 2007 |
pkp | Other | OMC | OMC PZT response | Sam and I locked the laser to the OMC cavity
and looked at the error signal as a function
of the voltage applied to the OMC PZT.
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6
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Sat Oct 20 11:54:13 2007 |
waldman | Other | OMC | OMC and OMC-SUS work | [Rich, Chub, Pinkesh, Chris, Sam]
Friday the 18th was a busy day in OMC land. |
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7
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Mon Oct 22 12:02:59 2007 |
ajw | Routine | General | STACIS as microseismic shaker | In case we ever want to use our Stacis systems
as shakers, check this:
[URL=http://www.techmfg.com/appnotes/Stacis_microseismic_shaker_appnote.htm]link[/URL] |
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8
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Mon Oct 22 19:27:14 2007 |
pkp | Other | OMC | PZT calibration/ transfer function. | We measured the PZT transfer function by comparing
the PZT response of the circuit with the
cavity in the loop, with that of the circuit |
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9
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Tue Oct 23 09:01:00 2007 |
rana | Other | OMC | PZT calibration/ transfer function. | Are you sure that the error signal sweep is
not saturated on the top ends? This is usually
the downfall
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10
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Tue Oct 23 11:08:20 2007 |
steve | Other | General | brush fires | There are big brush fires around LA
40 days plot show no effect in the 40m lab |
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11
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Wed Oct 24 01:43:32 2007 |
Andrey Rodionov | Other | General | PDF-file -> Will report about first results for XARM during Wednesday meeting |
Here is the pdf-file with some graphs showing
first results for XARM optimization.
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12
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Wed Oct 24 08:58:09 2007 |
steve | Other | PSL | laser headtemp is up | C1:PSL-126MOPA_HTEMP is 19.3C
Half of the chiller's air intake was covered |
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13
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Thu Oct 25 00:01:21 2007 |
rana | Software Installation | CDS | GEO DV => LIGO DV | [URL=http://www.aei.mpg.de/~hewitson/]Martin
Hewitson[/URL] of [B]GEO600[/B] fame has
modified the cool GEO DV
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14
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Thu Oct 25 17:52:45 2007 |
waldman | Other | OMC | OMCs with QPDs | [Rich, Chub, Pinkesh, Sam]
Yesterday we got the QPD, OTAS, and PZT cabling |
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15
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Thu Oct 25 22:02:58 2007 |
rob | Routine | PSL | HEPAs maxed | In light of the SoCal fires, I turned the
PSL HEPAs up to 100%. |
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16
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Thu Oct 25 23:35:36 2007 |
waldman | Other | OMC | Hang the OMC! | [Pinkesh, Sam]
We tried, convicted and hung the OMC today. |
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17
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Fri Oct 26 09:10:17 2007 |
steve | Routine | PEM | PEM &PSL trend | The fires are out, lab particle counts are
up.
Psl HEPAs are at 100% and mobel HEPAs are |
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18
|
Fri Oct 26 16:19:29 2007 |
Tobin Fricke | Routine | IOO | MC resonances | We would like to measure the absorption of
the mode cleaner optics. The plan is to
repeat <a href="http://ilog.ligo-wa.caltech.edu:7285/mLIGO/Cleaning_the_Mode_Cleaner">Valera's |
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19
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Fri Oct 26 17:34:43 2007 |
waldman | Other | OMC | OMC + earthquake stops |
[Chub, chris, Pinkesh, Sam]
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20
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Fri Oct 26 21:48:40 2007 |
waldman | Configuration | OMC | Fiber to 056 | I set up a 700 mW NPRO in Rana's lab and launched
it onto a 50m fiber. I got a few mW onto
the fiber, enough to see with a card before |
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21
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Sat Oct 27 19:00:44 2007 |
waldman | Configuration | OMC | Hanging, locked OMC with REFL extracted. | I got the OMC locked to the fiber output today.
It was much more difficult than I expected
and I spent about 30 minutes or so flailing |
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22
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Sun Oct 28 03:03:42 2007 |
rana | Configuration | IOO | Three Way Excitement | [SIZE=2][B]We've been trying to measure the
MC mirror internal mode frequencies so that
we can measure
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23
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Mon Oct 29 09:16:31 2007 |
steve | Routine | VAC | the rga is back | We had no filament current since last power
glitch of Oct. 8, 2007
First I thought that the filament was lost, |
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24
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Mon Oct 29 09:46:50 2007 |
steve | Routine | VAC | vac & pem trend | Pumpdown 64 pumped by maglev for 125 days
pd64-m-d125
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25
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Mon Oct 29 11:07:22 2007 |
waldman | Software Installation | OMC | Software install on OMS | [Alex, Sam]
We spent a little time this morning working |
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26
|
Mon Oct 29 12:20:15 2007 |
waldman | Configuration | OMC | Changed OMS filters | I changed the OMS configuration so that some
of the OMC-SUS LED channels go to a breakout
box so that we can input the PDH error signal. |
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27
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Mon Oct 29 23:10:05 2007 |
waldman | Configuration | OMC | Lost in DAQspace | [Pinkesh, Sam]
In setting up a Digital based control of |
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28
|
Mon Oct 29 23:25:42 2007 |
tobin | Software Installation | CDS | frames mounted | I mounted the frames directory on mafalda
and linux3. It's intentionally not listed
in the /etc/fstab so that an fb crash won't |
|
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29
|
Tue Oct 30 00:47:29 2007 |
rana | Other | IOO | MC Ringdowns | I did a bunch of [B]MC ringdown measurements[/B]
using the PD that Rob set up. The idea is
to put a fast PD (PDA255)
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30
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Tue Oct 30 13:58:07 2007 |
ajw | Configuration | IOO | MC Ringdowns | Here's a quick fit-by-eye to the latter part
of the data from tek00000.xls.
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31
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Tue Oct 30 16:55:40 2007 |
tobin | Routine | | Drag-wiping perfected | Steve, Tobin
Steve procured an assortment of syringes |
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32
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Tue Oct 30 19:32:13 2007 |
tobin | Problem Fixed | Computers | conlogger restarted | I noticed that the conlogger wasn't running.
It looks like it hasn't been running since
October 11th. I modified the restart_conlogger |
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33
|
Tue Oct 30 20:15:24 2007 |
tobin | Other | Environment | earthquake | Rana, Tobin
Largish (M5.6) earthquake in San Francisco |
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34
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Wed Oct 31 08:33:54 2007 |
rana | Problem Fixed | SUS | Vent measurements | There was a power outage during the day yesterday;
whoever was around should post something
here about the
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35
|
Wed Oct 31 08:34:35 2007 |
rana | Other | IOO | loss measurements | In the end, we were unable to get a good scatter
measurement just because we ran out of steam.
The idea was to get a frame
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36
|
Wed Oct 31 08:38:35 2007 |
rana | Problem Fixed | IOO | MC autolocker | The MC was having some trouble staying locked
yesterday. I tracked this down to some steps
in the last
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37
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Wed Oct 31 09:45:28 2007 |
waldman | Other | OMC | Resolution to DAQland saga | [Jay, Sam]
We did a rough accounting for the linear |
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38
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Wed Oct 31 10:31:23 2007 |
Andrey Rodionov | Routine | VAC | Venting is in progress |
We (Steve, David, Andrey) started venting
the vacuum system at 9.50AM Wednesday morning. |
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39
|
Wed Oct 31 15:02:59 2007 |
tobin | Routine | IOO | Mode Cleaner Mode Tracking | I processed the heterodyned mode cleaner data
yesterday, tracking the three 28 kHz modes
corresponding to MC1, MC2, and MC3. Unfortuntately |
|
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40
|
Wed Oct 31 15:22:59 2007 |
rob | Configuration | IOO | Mode Cleaner transfer function | I measured the transfer function of the input
mode cleaner using a PDA255 and the ISS.
First I put the PD in front of the ISS out-of-loop |
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41
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Wed Oct 31 19:26:08 2007 |
Andrey Rodionov | Routine | General | Photographs of "Mode-Cleaner Entrance" |
Here are the pictures of "inside the chamber". |
9x |
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42
|
Wed Oct 31 23:55:17 2007 |
waldman | Other | OMC | QPD tests | The 4 QPDs for the OMC have been installed
in the 056 at the test setup. All 4 QPDs
work and have medm screens located under |
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43
|
Thu Nov 1 01:28:04 2007 |
waldman | Other | OMC | First digital lock of OMC | [Pinkesh, Sam]
We locked a fiber based NPRO to the suspended |
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44
|
Thu Nov 1 09:17:27 2007 |
steve | Routine | VAC | vent 64 | Yesterday before vent I could not lock MC,
therfore I could not measure the
transmitted power at MC2
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45
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Thu Nov 1 11:45:30 2007 |
tobin | Configuration | IOO | Mode cleaner drag-wiping | Andrey, Bob, David, John Miller, Rana, Rob,
Steve, Tobin
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46
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Thu Nov 1 16:34:47 2007 |
Andrey Rodionov | Summary | Computers | Limitation on attachment size of E-LOG |
I discovered yesterday when I was attaching
photos that it is NOT possible to attach |
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47
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Thu Nov 1 16:42:48 2007 |
Andrey Rodionov | Summary | Environment | End of Daylight Saving Time this weekend | Useful information for everyone, as a friendly
reminder:
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48
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Thu Nov 1 16:51:33 2007 |
d40 | AoG | General | D40 | [SIZE=3][FONT=Comic Sans MS]If you vant see
D40 againn, you leave one plate goulash by
N2 tank in morning.
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50
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Thu Nov 1 19:53:02 2007 |
Andrey Rodionov | Bureaucracy | Photos | Tobin's picture | |
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51
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Thu Nov 1 19:53:34 2007 |
Andrey Rodionov | Bureaucracy | Photos | Robert's photo | |
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52
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Thu Nov 1 19:54:22 2007 |
Andrey Rodionov | Bureaucracy | Photos | Rana's photo | |
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