| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
759
|
Tue Jul 29 19:53:19 2008 |
Koji | Update | SUS | PRM photos from the south window | Steve and Koji
We took some photos of PRM from the south |
|
|
762
|
Wed Jul 30 00:42:04 2008 |
rana | Update | SUS | Trends and file formats | I propose that we do not use .eps format but
.pdf instead. For images like the plots Sharon
has below we should use only .png and for |
|
|
763
|
Wed Jul 30 01:08:50 2008 |
rana | Summary | SUS | SUS Drift Screen | This is a snap of the SUS Drift screen with
all of the optics biases set back to their
nominal
|
|
|
773
|
Wed Jul 30 18:45:01 2008 |
rana | Configuration | SUS | New SUS Drift Technology | I updated the SUS DRIFT screen again, this
time with a new feature.
|
|
|
785
|
Sat Aug 2 18:37:41 2008 |
rana | Update | SUS | OSEM Spectra | [COLOR=darkblue]
The attached PDF file is from the .xml files
that I found from 7/30. Looks like someone
|
|
|
797
|
Tue Aug 5 10:23:00 2008 |
steve | Update | SUS | earthquake and venting effects | atm 1, EQ
atm 2, vent 7 days later: venting kicks optic
into place to be free,
|
|
|
799
|
Tue Aug 5 12:52:28 2008 |
Yoichi | Update | SUS | ITMX, SRM OSEM spectra | Free swinging spectra of ITMX and SRM.
ITMX seems to be ok after yesterday's work,
though the OSEM DC values are still a bit |
|
|
803
|
Wed Aug 6 13:15:57 2008 |
Yoichi | Update | SUS | SRM ETMX freeswing spectra | After yesterday's work on the SRM, I took
free swinging spectra of SRM.
The eigen modes look ok. But there are many |
|
|
806
|
Wed Aug 6 22:19:07 2008 |
Yoichi | Update | SUS | BS alignment | Koji, Yoichi
We realized that we did not pay attention |
|
|
807
|
Thu Aug 7 10:07:13 2008 |
Yoichi | Update | SUS | Free swinging OSEM spectra | Looks like there are more extra peaks in the
SRM than other optics.
Maybe because it is closer to the door ? |
|
|
808
|
Thu Aug 7 10:27:59 2008 |
rana | Update | SUS | Free swinging OSEM spectra | Sometimes we see extra peaks in the OSEM spectra
coming from a beat between the regular eigenmodes.
This probably comes from the OSEM shadow |
|
|
810
|
Thu Aug 7 12:20:52 2008 |
Yoichi | Update | SUS | PRM stand-offs and wire | We removed the side OSEM of the PRM so that
we can see the stand-off on the farther side.
|
|
|
811
|
Thu Aug 7 17:32:23 2008 |
Jenne | Update | SUS | Afternoon PRM activities | Rana, Jenne, Yoichi, Dmass
After Yoichi confirmed this morning that |
|
|
816
|
Fri Aug 8 13:29:54 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | Yoichi, Steve, Seiji
We took magnified pictures of the stand-offs |
|
|
817
|
Fri Aug 8 15:10:35 2008 |
Yoichi | Update | SUS | No groove in the stand-off ... wait, it is not even a stand-off ! | I tried to find the missing stand-off and
the guide rod in the BS chamber, but I couldn't. |
|
|
818
|
Fri Aug 8 17:54:52 2008 |
Jenne | Update | SUS | Standoffs and Guide Rods | After closer inspection of other small optics,
it is clear that the guide rods should be
[SIZE=2]above[/SIZE] the standoffs on our |
|
|
831
|
Wed Aug 13 17:00:59 2008 |
steve | Configuration | SUS | BS sat amp removed | The PRM sat amp is broken. Ben is working
on it.
The BS sat amp was removed from the BS sus |
|
|
832
|
Wed Aug 13 20:13:35 2008 |
Yoichi | Update | SUS | PRM stand-off is glued | Steve, Janne, Rob, Bob, Koji, Yoichi
We finally managed to balance the PRM and |
|
|
833
|
Thu Aug 14 10:26:45 2008 |
steve | HowTo | SUS | sus cable pin cheater for out of vac damping | The 40m D25 vacuum feed troughs give you a
mirror image pin count.
|
|
|
836
|
Thu Aug 14 19:08:14 2008 |
Yoichi | Configuration | SUS | Free swing measurement going on | I started free swinging spectra measurement
of all the suspensions now Aug 14 19:05 (PDT).
The watch dogs are all shutdown. Please do |
|
|
842
|
Fri Aug 15 17:38:41 2008 |
Yoichi | Update | SUS | OSEM free swinging spectra before the pump down | I ran an overnight measurement of the free
swinging OSEM spectra.
The attm1 shows the results. Everything look |
|
|
844
|
Mon Aug 18 08:07:10 2008 |
Yoichi | Configuration | SUS | Suspension free swinging | I've started a free swinging measurement of
OSEM spectra now. Please leave the watchdogs
untouched. |
|
|
846
|
Mon Aug 18 11:50:29 2008 |
Yoichi | Update | SUS | In vacuum free swinging results | The first attachment is the results of the
free swinging spectra measurement performed
in vacuum this morning.
|
|
|
851
|
Tue Aug 19 13:12:55 2008 |
Jenne | Update | SUS | Diagonalized PRM Input Matrix | [SIZE=2][COLOR=blue]NOTE: Use the values
in elog #860 instead (20Aug2008)[/COLOR][/SIZE]
|
|
|
860
|
Wed Aug 20 12:04:47 2008 |
Jenne | Update | SUS | Better diagonalization of PRM input matrix | The values here should replace those in entry
#851 from yesterday.
|
|
|
869
|
Fri Aug 22 10:39:41 2008 |
Jenne | Update | SUS | Taking Free Swinging spectra of PRM, SRM, ITMX, BS | I'm taking free swinging spectra of PRM, SRM,
ITMX and BS, so I've turned off their watchdogs
for now. I should be done around 11:15am, |
|
|
970
|
Fri Sep 19 01:55:41 2008 |
rana | Summary | SUS | SUS Drift Screen Updated | I wrote 2 matlab scripts to update the SUS
DRIFT screen:
|
|
|
975
|
Mon Sep 22 12:06:58 2008 |
rob | Update | SUS | ITMY UL OSEM |
Last week I found the ITMY UL OSEM dead. |
|
|
996
|
Fri Sep 26 09:05:47 2008 |
steve | Update | SUS | MC2 damping restored | The MC2 sus damping was restored. |
|
|
1021
|
Thu Oct 2 18:56:19 2008 |
rana | Summary | SUS | Resistivity of Suspension Wire | Bob and Steve measured the resistance of the
suspension wire today:
|
|
|
1103
|
Fri Oct 31 08:52:19 2008 |
steve | Update | SUS | ETMY damping restored | ETMY watchdogs were tripped yesterday morning
also. This is a problem that existed some
months ago.(?)
|
|
|
1188
|
Mon Dec 8 17:50:21 2008 |
Yoichi | Update | SUS | ITMY drift | The suspension drift monitor shows that the
ITMY alignment was shifted after the earthquake.
Looks like only the UL sensor had a step |
|
|
1192
|
Thu Dec 18 12:52:00 2008 |
Alberto | Configuration | SUS | Mode Cleaner Cavity Alignment | This morning I found the MC locked to the
10 mode. When I locked it on the 00 mode,
it was unstable and eventually it always |
|
|
1193
|
Thu Dec 18 19:15:54 2008 |
Alberto, Yoichi | Configuration | SUS | Mode Cleaner Cavity Alignment | [quote]This morning I found the MC locked
to the 10 mode. When I locked it on the 00
mode, it was unstable and eventually it always |
|
|
1234
|
Fri Jan 16 18:29:08 2009 |
Yoichi | Update | SUS | Oplevs QPDs centered | Kakeru centered ITMX and BS optical levers
with the help of Jenne on the walkie-talkie. |
|
|
1314
|
Mon Feb 16 22:58:51 2009 |
rana, yoichi | Configuration | SUS | Hysteresis in SUS from Misalignments | WE wondered if there was some hysteresis in
the SUS alignments. When we leave the optics
misaligned for a
|
|
|
1420
|
Tue Mar 24 09:04:02 2009 |
steve | Update | SUS | 4.8 mag earthquake | SRM, ITMX, ETMX, ITMY and ETMY lost damping
at 4:55am this morning from 4.8 magnitude
earthquake. |
|
|
1422
|
Tue Mar 24 13:54:49 2009 |
Jenne | Update | SUS | Op Levs Centered | ITMX, ITMY, BS, SRM, PRM op levs were all
recentered. ETM's looked okay enough
to leave as-is. |
|
|
1439
|
Sun Mar 29 13:44:27 2009 |
steve | Update | SUS | ETMY sus damping restored | ETMY sus damping was found to be tripped.
It was retored.
All fluorecent light were turned |
|
|
1440
|
Sun Mar 29 17:54:41 2009 |
Yoichi | Update | SUS | MC1 drift investigation continued | The attached plots show the trend of the MC
OSEM signals along with the voltages across
the output resistors of the bias current |
|
|
1441
|
Mon Mar 30 09:07:22 2009 |
rana | Update | SUS | MC1 drift investigation continued | [COLOR=chocolate]Maybe we can temporarily
just disconnect the bias and just use the
SUS sliders for bias if there's enough range?[/COLOR] |
|
|
1444
|
Mon Mar 30 13:29:40 2009 |
Yoichi | Update | SUS | MC1 drift investigation continued | [quote][COLOR=chocolate]Maybe we can temporarily
just disconnect the bias and just use the
SUS sliders for bias if there's enough range?[/COLOR][/quote]
|
|
|
1583
|
Wed May 13 21:15:04 2009 |
rana | Summary | SUS | Channel Hopping: That ancient enemy (MC problems) | The MC side problem could also be the side
tramp unit problem. Set the tramp to 0 and
see if that helps. |
|
|
1584
|
Thu May 14 00:15:39 2009 |
rob | Summary | SUS | Channel Hopping: That ancient enemy (MC problems) | [quote]The MC side problem could also be the
side tramp unit problem. Set the tramp to
0 and see if that helps.[/quote]
|
|
|
1586
|
Thu May 14 15:28:28 2009 |
steve | Summary | SUS | April 24 earthquake effect on MC2 | [quote][quote]The MC side problem could also
be the side tramp unit problem. Set the tramp
to 0 and see if that helps.[/quote]
|
|
|
1587
|
Thu May 14 16:07:20 2009 |
pete | Summary | SUS | Channel Hopping: That ancient enemy (MC problems) | [quote][quote]The MC side problem could also
be the side tramp unit problem. Set the tramp
to 0 and see if that helps.[/quote]
|
|
|
1588
|
Fri May 15 00:02:34 2009 |
pete | Update | SUS | ETMX coils look OK | I checked the four rear coils on ETMX by
exciting XXCOIL_EXC channel in DTT with amplitude
1000@ 500 Hz and observing the oplev PERROR |
|
|
1603
|
Mon May 18 21:34:18 2009 |
rana | Configuration | SUS | ETMY f2pRatio script run | Now that the ETMY optical lever is not so
bad, I ran the f2pRatio script and it seems
to have worked.
|
|
|
1605
|
Tue May 19 12:30:41 2009 |
rob | Configuration | SUS | ETMY f2pRatio script run | [quote]Now that the ETMY optical lever is
not so bad, I ran the f2pRatio script and
it seems to have worked.
|
|
|
1616
|
Thu May 21 18:05:03 2009 |
pete | Update | SUS | ETMX coils look OK |
|
|