| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
114
|
Mon Nov 19 14:19:25 2007 |
steve | Omnistructure | PEM | jackhammer | The construction personal successfully jackhemmered
a fence around the "Drever's parking slot"
There is no parking space available close |
|
|
113
|
Fri Nov 16 18:46:49 2007 |
steve | Bureaucracy | PSL | MOPA was turned off & on | The "Mohana" boys scouts and their parents
visited the 40m lab today.
The laser was turned off for their safety.
|
|
|
112
|
Fri Nov 16 14:31:43 2007 |
tobin | Update | Computers | op140 disks | Phil Ehrens stopped by and took op140's disks. |
|
|
111
|
Fri Nov 16 14:11:26 2007 |
tobin | Update | Computers | op140 | Alan called to say that Phil Ehrens will be
coming by to take [b]op140[/b] off our hands. |
|
|
110
|
Fri Nov 16 11:27:18 2007 |
tobin | Update | Computers | script fix | I added a tidbit of code to "LIGOio.pm" that
fixes a [url=http://lhocds.ligo-wa.caltech.edu:8000/40m/EZCA]problem
with ezcastep on Linux[/url]. Scripts such |
|
|
109
|
Thu Nov 15 18:37:06 2007 |
tobin | Update | Computers | possible replacement for linux1's disk | It looks like the existing disk in linux1
is a Seagate ST380013A (this can be found
either via the smartctl utility or by looking |
|
|
108
|
Thu Nov 15 18:36:48 2007 |
John | Summary | | PSL table work | I've rotated the lambda/2 plate to 340deg
(from 6 deg) and blocked one arm of the Mach-Zender.
Undo both if you need to. |
|
|
107
|
Thu Nov 15 18:23:55 2007 |
John | HowTo | Computers | Swap CAPS and CTRL on a Windows 2000/XP machine | I've swapped ctrl and caps on the four control
room Windows machines. Right ctrl is unchanged.
|
|
|
106
|
Thu Nov 15 18:06:06 2007 |
tobin | Update | Computers | alex: linux1 root file system hard disk's dying | I just noticed that Alex made [url=http://www.ldas-sw.ligo.caltech.edu/ilog/pub/ilog.cgi?group=40m&date_to_view=11/14/2007&anchor_to_scroll_to=2007:11:14:20:00:29-aivanov]an
entry in the old ilog[/url] yesterday, saying:
"[color=red][b]Looks like linux1 root filesystem |
|
|
105
|
Thu Nov 15 17:09:37 2007 |
pkp | Update | OMC | Vertical Transfer functions with no cables attached. | [Norna Pinkesh]
The cables connecting all the electronics |
|
|
104
|
Thu Nov 15 04:18:11 2007 |
John | Summary | PSL | PMC cavity pole measurements | In connection with our work on the ISS I attempted
to measure the PMC cavity pole.
|
|
|
103
|
Wed Nov 14 17:50:00 2007 |
tobin | Update | PSL | ISS | Here's the current wiring between the ISS
and its PDs:
|
|
|
102
|
Wed Nov 14 16:54:54 2007 |
pkp | Update | OMC | Much better looking vertical transfer functions | [Norna Pinkesh]
So after Chub did his wonderful mini-surgery |
|
|
101
|
Wed Nov 14 12:47:19 2007 |
tobin | Update | PSL | ISS | John, Tobin
With John's notch filter installed and the |
|
|
100
|
Wed Nov 14 12:33:35 2007 |
tobin | AoG | Environment | construction | The construction crews are running a jack-hammer
right outside of the control room. |
|
|
99
|
Wed Nov 14 07:48:38 2007 |
norna | Omnistructure | OMC | OMC Cable dressing | [Snipped from an email]
1) Last Friday Pinkesh and I set the OMC |
|
|
98
|
Tue Nov 13 14:33:40 2007 |
John | Update | PSL | ISS filter | The transfer function from 'In Loop Error
Point Monitor' to TP3 the filter out test
point on the ISS board.
|
|
|
97
|
Mon Nov 12 23:44:19 2007 |
John | Update | PSL | ISS | [quote]
After John soldered a 3.7 MHz notch filter
onto the ISS board, I took a quick TF and |
|
|
96
|
Mon Nov 12 15:18:34 2007 |
rob | Update | PSL | ISS |
After John soldered a 3.7 MHz notch filter
onto the ISS board, I took a quick TF and |
|
|
95
|
Mon Nov 12 15:05:49 2007 |
rob | Configuration | PSL | FSS |
Spent a bit of time fiddling with the FSS
again today. In a not-particularly-systematic |
|
|
94
|
Mon Nov 12 14:09:19 2007 |
rob | DAQ | General | tpman dead on fb40m | The testpoint manager was dead on fb40m.
I know I re-started it sometime after the
power outage, so something must have killed |
|
|
93
|
Mon Nov 12 10:53:58 2007 |
pkp | Update | OMC | Vertical Transfer functions | [Norna Sam Pinkesh]
These plots were created by injected white |
|
|
92
|
Sun Nov 11 21:21:04 2007 |
rana | HowTo | Computers | New DV | To use the new ligoDV (previously GEO DV)
to look at 40m data, open up a matlab, set
up for mDV as usual,
|
|
|
91
|
Sun Nov 11 21:05:55 2007 |
rana | HowTo | SUS | MC Touching or not | I wrote a script: [I]SUS/freeswing-mc.csh[/I],
which gives the MC mirrors the appropriate
kicks
|
|
|
90
|
Fri Nov 9 21:36:14 2007 |
rob | Configuration | PSL | FSS | rob, rana
We looked at the FSS a bit today. The most |
|
|
89
|
Fri Nov 9 17:33:33 2007 |
rob | Configuration | PSL | ISS |
The 3.7 MHz is actually on the light. It's
the beat between the 29.5 MHz sidebands and |
|
|
88
|
Fri Nov 9 09:37:55 2007 |
steve | Update | PSL | head temp hiccup | Just an other PSL-126MOPA_HTEMP hiccup.
The water chiller is at 20.00C |
|
|
87
|
Fri Nov 9 00:23:12 2007 |
pkp | Update | OMC | X and Z resonances | I got a couple of resonance plots going for
now. I am still having trouble getting the
Y measurement going for some reason. I will |
|
|
86
|
Fri Nov 9 00:01:24 2007 |
waldman | Omnistructure | OMC | OMC mechanical resonances (Tap tap tappy tap) | [Pinkesh, Aidan, Sam]
We did a tap-tap-tappy-tap test of the OMC |
7x |
|
85
|
Thu Nov 8 18:44:01 2007 |
tobin | Configuration | PSL | ISS | Tobin, Rob
With the Sense PD blocked, I adjusted the |
|
|
84
|
Thu Nov 8 15:57:53 2007 |
tobin | Configuration | PSL | shelf removed | I removed the sheet metal shelf from the PSL
enclosure, for easier access to the ISS.
|
|
|
83
|
Thu Nov 8 11:40:21 2007 |
steve | Update | PEM | particle counts are up | I turned up the psl HEPA filter to 100%
This 4 days plot shows why |
|
|
82
|
Thu Nov 8 00:55:44 2007 |
pkp | Update | OMC | Suspension tests | [Sam , Pinkesh]
We tried to measure the transfer functions |
9x |
|
81
|
Wed Nov 7 16:07:03 2007 |
steve | Update | PSL | PSL & IOO trend | 1.5 days of happy psl-ioo with litle bumps
in C1:PSL-126MOPA_HTEMP |
|
|
80
|
Wed Nov 7 14:05:59 2007 |
tobin | Configuration | IOO | MC ringdown | Modeling the mode cleaner as a simple cavity
with all losses lumped together, we expect
the cavity power to be
|
|
|
79
|
Wed Nov 7 14:01:31 2007 |
waldman | Omnistructure | OMC | Frequency and Intensity noise | One of the biggest problems I had using the
PZT to lock was excessive noise. I did a
little noise hunting and found that the problem |
|
|
78
|
Wed Nov 7 13:54:44 2007 |
rob | Configuration | IOO | Mode Cleaner transfer function | I performed the same procedure described [url=http://dziban.ligo.caltech.edu:40/40m/40]
here[/url], and re-measured the transfer
function of the mode cleaner to see the effect |
|
|
77
|
Wed Nov 7 10:55:21 2007 |
ajw | Configuration | Computers | backup script restarted | Following the reboot of computers on 10/31/07,
the backup script required restart (which
unfortunately "can't" be automated because |
|
|
76
|
Wed Nov 7 09:38:01 2007 |
steve | Update | VAC | rga scan | pd65-m-d2 at cc1 6e-6 torr |
|
|
75
|
Wed Nov 7 02:14:08 2007 |
Andrey | Bureaucracy | IOO | More information about MC2 ringdown | As Tobin wrote two hours ago, we (Andrey,
Tobin, Robert) made a series of ringdown
measurements for MC2
|
9x |
|
74
|
Wed Nov 7 00:51:33 2007 |
andrey, rob, tobin | Configuration | IOO | MC ringdowns | We completed several ringdown measurements
this afternoon; Andrey is currently processing
the data. |
|
|
73
|
Tue Nov 6 23:45:38 2007 |
tobin | Configuration | Computers | tektronix scripts! | I cooked up a little script to fetch the data
from the networked Tektronix scope. Example
usage:
|
|
|
72
|
Tue Nov 6 18:18:15 2007 |
tobin | Configuration | Computers | I broke (and fixed) conlogger | It turns out that not only restart_conlogger,
but also conlogger itself checks to see that
it is running on the right machine. I had |
|
|
71
|
Tue Nov 6 16:48:54 2007 |
tobin | Configuration | Computers | scopes on the net | I configured our two 100 MHz Tektronix 3014B
scopes with IP addresses: 131.215.113.24
([url=http://scope0/]scope0[/url]) and 113.215.113.25 |
|
|
70
|
Tue Nov 6 15:37:34 2007 |
rob | Configuration | SUS | rampdown script | /cvs/cds/caltech/scripts/SUS/rampdown.pl is
now in the crontab for op340m, running every
half-hour at 15&45. It checks the suspension |
|
|
69
|
Tue Nov 6 15:36:03 2007 |
rob | Update | LSC | XARM locked | Easily, after resetting the PSL Uniblitz shutters.
There's no entry from David or Andrey about
the recovery from last week's power outage, |
|
|
68
|
Tue Nov 6 14:51:03 2007 |
tobin, rob | Update | IOO | Mode cleaner length | Using the Ward-Fricke variant* of the [url=http://ilog.ligo-wa.caltech.edu/ilog/pub/ilog.cgi?group=detector&date_to_view=02/14/2004&anchor_to_scroll_to=2004:02:15:00:06:50-daniel]Sigg-Frolov
method[/url], we found the length of the
mode cleaner to be [b]27.0934020183 meters[/b], |
|
|
67
|
Tue Nov 6 10:42:01 2007 |
rob | Configuration | IOO | mode cleaner locked | Increased the power exiting the PSL by turning
the half-wave plate after the MOPA, opened
the PSL shutter, and aligned the mode cleaner |
|
|
66
|
Tue Nov 6 09:45:22 2007 |
steve | Summary | SUS | vent sus trend | The mc optics dragwippings were done by locking
optics by eq stops and rotating-moving
cages so access were good. This technic worked |
|
|
65
|
Tue Nov 6 09:14:37 2007 |
steve | Summary | VAC | pump down 65 | 8 hr plot,
precondition: 5 days at atm,
vent objective: drag wiping mc1, mc2 & mc3 |
|