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40m Log, Page 340 of 357
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ID
Date
Author
Type
Category
Subject
Text
5645
Mon Oct 10 16:32:18 2011
steve
Update
SUS
UL sensor of ETMY is recovered
I lost UL osem voltage this morning
when I was checking the actual connection
at rack ETMY
5655
Wed Oct 12 08:43:30 2011
steve
Update
SUS
ITMX oplev improved a bit
Atm2 is before optical path adjustment.
The idea was to remove possible clipping
in vacuum.
5660
Thu Oct 13 14:23:09 2011
steve
Update
SUS
ITMX oplev with 3 mm beam on qpd
I replaced the JDSU-Uniphase 1125P
by 1103P He/Ne laser. This new laser had
2.8 mW output yesterday. It degraded to 0.5
5675
Mon Oct 17 07:57:24 2011
steve
Update
SUS
ETMX sus damping restored
5680
Mon Oct 17 17:07:30 2011
steve
Update
SUS
ETMX oplev returning beam od 3 mm
ETMX oplev had 6 mm diameter beam
on the qpd. I relayed the beam path
with 2 lenses to get back 3 mm
5692
Wed Oct 19 08:34:16 2011
steve
Update
SUS
SRM sus damping restored
Sorry Kiwamu, I realized too late that
you were freeswigging. Hopefully 4 hrs was
enough.
5693
Wed Oct 19 09:44:10 2011
steve
Update
SUS
ETMX oplev power spectrum
5701
Wed Oct 19 16:28:35 2011
steve
Update
Green Locking
ETMY mechanical shutter is working
5712
Thu Oct 20 12:43:19 2011
steve
Update
SAFETY
refilled first aid kits & their locations
First aid kits are located close vicinity
of entry doors and under circuit breaker
panels.
8x
5719
Fri Oct 21 09:08:33 2011
steve
Update
SUS
MC2 Misalignment
Thinks to do before the NEXT realignment:
B, tie 4 ancher bolts on table
legs to the floor
5720
Fri Oct 21 10:32:14 2011
steve
Update
PSL
PSL laser turned off
In order to move the emergency shut off
switch in room 103 I had to turn off the
2 W Innolight laser. This job will take an
5721
Fri Oct 21 11:02:47 2011
steve
Update
PSL
PSL laser turned ON
5728
Mon Oct 24 14:26:01 2011
steve
Update
General
no electricity on Nov. 19
5741
Wed Oct 26 10:07:16 2011
steve
Update
General
no electricity ....... will be recheduled
5759
Fri Oct 28 18:33:59 2011
steve
Update
VAC
leaking nitrogen line fixed
I was lucky to notice that the nitrogen
supply line to the vacuum valves was leaking.
Closed ALL valves. Open supply line to atm.
5767
Mon Oct 31 08:55:19 2011
steve
Update
VAC
pressure plot at day 53
5768
Mon Oct 31 09:42:12 2011
steve
Update
IOO
PMC locked
The PMC HV drops off more offen lately.
5771
Mon Oct 31 15:58:25 2011
steve
Update
SUS
thinking of black glass baffles for 40m
Shade 12 black glass-green lines: 1/8"
thick, 6" wide x 7 "
high mounted on angle bracket below.
5782
Wed Nov 2 10:04:05 2011
steve
Update
SUS
MC2 chamber anchoring tightened
5783
Wed Nov 2 10:41:47 2011
steve
Update
General
2 spare heliax at the LSC rack
They were traced and labeled. One goes
to 1X2 and the other to AS-ISCT. They are
Andrew Heliax 1/4" od. made by CommScone,
5826
Mon Nov 7 08:08:24 2011
steve
Update
IOO
PMC locked
The PMC acted like it was sleeping. The
HV slider was dead. The MC locked instantly
as the PMC had transmission.
5827
Mon Nov 7 08:25:15 2011
steve
Update
General
no electricity on Nov. 20
The
Nov.19 interruption was rescheduled to be
on Nov.20,2011
5831
Mon Nov 7 14:58:17 2011
steve
Update
General
Chamber illuminator remote switches installed
5844
Wed Nov 9 07:57:39 2011
steve
Update
SUS
ETMX oplev is down and sus damping restored
The ETMX oplev returning beam is well centered
on the qpd. We lost this signal 2 days ago.
I will check on the qpd.
5887
Mon Nov 14 15:46:14 2011
steve
Update
VAC
TP2's forepump changed
The foreline pressure of TP2 was 1.4 Torr
this morning. This drypump worked well for
ten months.
5897
Tue Nov 15 16:16:34 2011
steve
Update
PSL
enclosure interlocks are working on all sliding doors
Ben and Sam came over to fix one of
the east side sliding door sensor
that had to be moved from the inside
5898
Tue Nov 15 16:25:38 2011
steve
Update
PSL
IOO angle qpd centered
This moring I centered the IOO Angle QPD.
The IOO Pos QPD was not centered. The existing
layout does not allow the beam centering
5907
Wed Nov 16 10:11:20 2011
steve
Update
PSL
IOO angle & pos qpd centered
5909
Wed Nov 16 10:25:57 2011
steve
Update
SUS
PRM damping restored
The PRM lost damping about a day
ago. It was restored.
5912
Wed Nov 16 14:34:18 2011
steve
Update
PSL
IOO beam moves in pitch
C1:IOO-QPD_ANG_VERT beam movement
in 1 degree C temp change in 3 hrs
5927
Thu Nov 17 15:19:06 2011
steve
Update
SUS
Ti spring plunger to hold OSEM is not affortable
Our existing 300 series SS plungers from
McMastercar #8476A43 are silver plated as
Atm2 shows.
5950
Fri Nov 18 16:37:14 2011
steve
Update
VAC
preparing for ac power interruption
The vacuum is ready for no AC power for
1 hr on Sunday morning at 10am
5962
Sun Nov 20 13:51:54 2011
steve
Update
VAC
vacuum is back up after ac interruption
State condition: Vac Normal,
CC1 ~8e-6 Torr
The IFO pressure peaked at
6025
Mon Nov 28 15:43:36 2011
steve
Update
RF System
EOM temp zoomed
6036
Tue Nov 29 15:25:29 2011
steve
Update
RF System
EOM temp stabilization performance
It is not obvious what is working.
6058
Thu Dec 1 11:25:10 2011
steve
Update
PEM
40m infrastructure holds up well in strong wind condition
Santa Anna wind speed was locked
around 60 kmph last night on campus. The
strongest in 30 years. The lab hold
6120
Wed Dec 14 14:40:53 2011
steve
Update
Green Locking
delay line bnc cable specs
The existingly used used Pasternack Enterprices
RG58 C/U cable lenght ~ 140 ft and the specs
are here at Atm1
6139
Tue Dec 20 15:49:21 2011
steve
Update
PEM
optical table top
3/4 " thick colored acrylic material
will be used in this air tight design. Surgical
tubing for o-ring. We may have to put an
6168
Wed Jan 4 09:06:50 2012
steve
Update
Computers
possible front-end timing issue
6172
Thu Jan 5 09:08:48 2012
steve
Update
General
framebuilder is back
Dataviewer is recovered after heavy new
year party.
6180
Mon Jan 9 08:47:35 2012
steve
Update
SUS
ETMX damping restored
ETMX sus damping restored
6184
Tue Jan 10 09:17:23 2012
steve
Update
Photos
strawman's visiters
6188
Thu Jan 12 07:44:21 2012
steve
Update
SUS
sapphire wire standoff quote
On Tue, Dec 20, 2011 at 11:37 PM,
Rana Adhikari wrote:
6190
Thu Jan 12 10:11:59 2012
steve
Update
PEM
optical table top with 1" wall
6210
Wed Jan 18 12:38:44 2012
steve
Update
PEM
Acrylic plexiglass transmittance
6223
Wed Jan 25 17:32:03 2012
steve
Update
Green Locking
geen pointing into y arm is misaligned
I placed an other Y2-LW-1-2050-UV-45P/AR
steering mirror into the beam path of the
green beam launching in order to avoid the
6226
Thu Jan 26 08:36:38 2012
steve
Update
SAFETY
evacuation drill
It started with fire alarm test yesterday
at 14:50 All alarms are functioning
VERY loud and their flashers are bright.
6227
Thu Jan 26 10:17:01 2012
steve
Update
Green Locking
geen pointing into y arm is realigned
6232
Fri Jan 27 09:05:41 2012
steve
Update
SUS
OSEM locking plunger
6236
Mon Jan 30 08:17:06 2012
steve
Update
IOO
PMC
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