| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
5155
|
Tue Aug 9 15:14:46 2011 |
Koji | Update | General | in-vac work plan today | This morning Kiwamu and I have aligned
the MC. Kiwamu aligned the last steering
(on the OMC table) to recover the touch last |
|
|
5154
|
Tue Aug 9 13:34:40 2011 |
Nicole | Summary | SUS | New Calibration Plots for Photosensors | Here are the new calibration plots for
my photosensors. These calibrations were
done using a translation stage. |
|
|
5153
|
Tue Aug 9 11:33:33 2011 |
kiwamu | Update | SUS | Re: ETMX free swinging data | I believe that the 17 Hz broad structure on
SIDE is just because of a bad rotational |
|
|
5152
|
Tue Aug 9 10:15:25 2011 |
kiwamu | Update | General | in-vac work plan today | We will
move on to the vertex region today. |
|
|
5151
|
Tue Aug 9 03:05:05 2011 |
kiwamu | Summary | General | weekly report | Summary of the week ending Aug 8th. |
|
|
5150
|
Tue Aug 9 02:44:32 2011 |
Suresh | Update | SUS | ETMX free swinging data | I switched off damping to the ETMX and
used a reduced version of freeswing-all.csh
script (called freeswing-ETMX.csh) to set |
|
|
5149
|
Tue Aug 9 02:34:26 2011 |
Jenny | Update | PSL | PZT transfer function measurement | Using a PDA255 on the PSL table, I measured
the amplitude response of the NPRO PZT, sweeping
from 10kHz to 5 MHz. |
|
|
5148
|
Tue Aug 9 02:27:54 2011 |
Ishwita , Manuel | Update | PEM | Power spectra and Coherence of Guralps and STS2 | We did offline wiener filtering on 3rd
August (Elog
entry) using only Guralps' channels X |
|
|
5147
|
Tue Aug 9 02:03:16 2011 |
kiwamu | Summary | SUS | summary of today's work on ETMY | [Rana / Jenne / Kiwamu]
The
ETMY suspension tower is currently sitting |
|
|
5146
|
Tue Aug 9 01:35:45 2011 |
Suresh | Update | SUS | ETMX Side Sensor slow channel down for a long time | The slow signal from the side sensor on
ETMX was last seen in action sometime in
May 2010! And then the frame builder |
|
|
5145
|
Mon Aug 8 22:12:58 2011 |
Nicole | Summary | SUS | Daily Summary | Today I balanced the mirror, finished putting
together the second photosensor, and finished
my photosensor circuit box! |
|
|
5144
|
Mon Aug 8 20:23:14 2011 |
Jenny | Update | PSL | Network analyzer and PD set up to measure amplitude response of PZT |
|
|
|
5143
|
Mon Aug 8 19:45:27 2011 |
jamie | Update | CDS | activateDQ script run; SUS channels being acquired again | > Also the BS is missing its DAQ channels
again (JAMIE !) so we can't diagnose it with
the free swinging method. |
|
|
5142
|
Mon Aug 8 15:52:39 2011 |
steve | Update | VAC | back ground rga scan | The RGA region is beeing monitored during
the vent. This will tell us how clean the
RGA itself is. |
|
|
5141
|
Mon Aug 8 15:20:49 2011 |
kiwamu | Update | SUS | inspection on ETMY (round 1) | Since
ETMY have been showing some strange behaviors
we deeply inspect the ETMY suspension. |
|
|
5140
|
Mon Aug 8 14:21:03 2011 |
steve | Update | PEM | Particle counts controlled |
|
|
|
5139
|
Mon Aug 8 13:24:00 2011 |
steve | Metaphysics | Treasure | Monday morning |
|
|
|
5138
|
Mon Aug 8 12:08:05 2011 |
rana | Update | SUS | sus at atm | |
|
|
5137
|
Mon Aug 8 00:58:26 2011 |
rana | Update | CDS | diagonalization of MC input matrix | Besides the purpose of correctly tuning
the suspensions, my hidden goal in the input
matrix diagonalization has been to figure |
|
|
5136
|
Mon Aug 8 00:12:58 2011 |
rana | Update | CDS | diagonalization of MC input matrix | I've finally |
|
|
5135
|
Sun Aug 7 18:41:12 2011 |
Jenne | Update | Green Locking | X green beam re-aligned |
|
|
|
5134
|
Sun Aug 7 14:11:53 2011 |
Jenne | Update | PEM | Particle counts through the roof | [Jenne, Kiwamu]
While Kiwamu was finalizing the X
green alignment, I started to prepare to |
|
|
5133
|
Sun Aug 7 14:01:58 2011 |
kiwamu | Update | Green Locking | X green beam re-aligned | [Jenne / Kiwamu]
The |
|
|
5132
|
Sun Aug 7 11:10:54 2011 |
Suresh | Summary | General | OSEM positioning |
|
|
|
5131
|
Sat Aug 6 13:38:02 2011 |
rana | Summary | General | Summary of today's in-vacuum work | This OSEM placement is just the OPPOSITE
of what the proper placement is.
Usually, we want to put them in so |
|
|
5130
|
Sat Aug 6 03:10:05 2011 |
Suresh | Summary | General | Summary of today's in-vacuum work | The table below gives the OSEM positions
as seen on the slow chanels C1:SUS-ETMX_{UL,UR,LL,LR,SD}PDMon
|
|
|
5129
|
Fri Aug 5 22:54:29 2011 |
kiwamu | Metaphysics | Treasure | Crane crew here Monday morning | Also, according to Steve, there will be some
crane guys for fixing the Y end crane issue |
|
|
5128
|
Fri Aug 5 20:44:26 2011 |
jamie | Metaphysics | Treasure | Film crew here Monday morning | Just a reminder that a film crew will
be here Monday morning, filming Christian
Ott for some Discovery channel show. |
|
|
5127
|
Fri Aug 5 20:37:34 2011 |
jamie | Summary | General | Summary of today's in-vacuum work | [Jamie, Suresh, Jenne, Koji, Kiwamu]
After this morning's hiccup
with the east end crane, we decided to |
|
|
5126
|
Fri Aug 5 18:29:35 2011 |
Jenny | Update | PSL | Network analyzer and PD set up to measure amplitude response of PZT |
|
|
|
5125
|
Fri Aug 5 15:11:24 2011 |
kiwamu | Update | SUS | Re: cross coupling | There is a page on the 40m wiki explaining
the procedure.
|
|
|
5124
|
Fri Aug 5 14:03:12 2011 |
steve | Update | General | malfunctioning crane at ETMY | The horizontal trolley drive stopped working
at the east end this morning. It is working
intermittently. In the worst case we can |
|
|
5123
|
Fri Aug 5 13:51:51 2011 |
steve | Update | SUS | cross coupling | We need a plan how to minimize cross coupling
in the OSEMs now |
|
|
5122
|
Fri Aug 5 08:08:42 2011 |
kiwamu | Summary | General | plan today | Today's main
mission is : adjustment of the arm length |
|
|
5121
|
Fri Aug 5 04:03:16 2011 |
Koji | Update | LSC | REFL165 PD | REFL165 PD was made and tested. The characterization
results are in the PDF file.
Resonance at 166.12MHz |
|
|
5120
|
Fri Aug 5 02:00:09 2011 |
kiwamu | Summary | General | summary of today's invac work | [Jamie, Jenne, Suresh,
Steve, Koji, Kiwamu] |
|
|
5119
|
Thu Aug 4 20:05:23 2011 |
Nicole | Update | SUS | New Horizontal Sliding Base Mount for TT suspension testing | In order to more-securely mount the TT
supsion to the horizontal sliding base, I
have made a sub-mounting plate (upon Koji's |
|
|
5118
|
Thu Aug 4 11:18:12 2011 |
rana | Update | SUS | sus at atm | Remember that the Oplevs are not good references
because of the temperature sensitivity. The
week long trend shows lots of 24 hour fluctuations. |
|
|
5117
|
Thu Aug 4 09:42:19 2011 |
Koji | Update | ABSL | ABSL Laser shutter closed | The shutter of the ABSL laser is closed
for the vent work. |
|
|
5116
|
Thu Aug 4 08:25:51 2011 |
steve | Update | SUS | sus at atm | ITMX and PRM moved alot. BS and
ITMY just a little based on oplev reference. |
|
|
5115
|
Thu Aug 4 01:49:08 2011 |
Suresh | Update | IOO | MC is locked | I measured the power transmitted from the
PSL to the MC.
It is 19mW. |
|
|
5114
|
Thu Aug 4 00:04:52 2011 |
Jenny | Update | PSL | Network analyzer and PD set up to measure amplitude response of PZT | Today I placed the PDA255 photodiode on
the PSL table to catch the small amount of
beam power reflected by the second polarizing |
|
|
5113
|
Wed Aug 3 22:31:38 2011 |
Koji | Update | LSC | REFL33 PD | REFL33 is ready for the installation
Characterization results of REFL33
is found in the PDF attachment. |
|
|
5112
|
Wed Aug 3 22:22:47 2011 |
Koji | Update | LSC | REFL165 PD | This REFL165 was good in terms of RF, but
I forgot to make the DC path functioning.
I will try some ideas to fix this |
|
|
5111
|
Wed Aug 3 16:18:30 2011 |
steve | Update | VAC | vent is almost finished | P1 at 750 Torr, Vent valve VV1 is
left open to atm. It will reach equilibrium
in an hour. The PSL power is not turned down |
|
|
5110
|
Wed Aug 3 14:40:32 2011 |
kiwamu | Summary | General | minutes of 40m meeting : plan tomorrow | Tomorrow's main goal
is : let the both X and Y green light come |
|
|
5109
|
Wed Aug 3 14:20:49 2011 |
steve | Update | SUS | ITMX and PRM damping restored | ITMX watchdog tripped around 5 Torr
and the PRM around 450 Torr of this vent.
They were restored than. |
|
|
5108
|
Wed Aug 3 12:37:57 2011 |
Koji | Summary | SUS | Weekly Summary | I vote for making an adapter plate between
the sliding plate and the bottom base.
|
|
|
5107
|
Wed Aug 3 12:27:01 2011 |
Nicole | Summary | SUS | Weekly Summary | This week I have determined the linear
region for my photosensor. I have determined
the linear region to be -14.32 V/cm in the |
|
|
5106
|
Wed Aug 3 12:24:08 2011 |
Manuel, Ishwita | Update | WienerFiltering | Weekly summary | Last Friday (Jul 29) we reinstalled the
blue breakout box, and changed the names
of the C1:PEM channels. Elog |
|