| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
795
|
Tue Aug 5 00:05:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ IFR2023A calibration | [B]Work log on August 4th[/B]
o IFR2023A (Marconi) was calibrated by the |
|
|
796
|
Tue Aug 5 02:39:55 2008 |
Koji | Configuration | General | Abs. Len. Meas. ~ Optical Layout on the AP / PSL table 2008-Aug-05 | Here are the PDF and the PNG of the AP and
PSL table layouts.
After this photo, the squeezing setup at |
|
|
798
|
Tue Aug 5 10:56:05 2008 |
Alberto | Configuration | General | ITMX chamber opened and mirror released | D-Mass, Steve, Rana, Koji, Yoichi, Alberto,
We opened the ITMX chamber to check the optics
after last week earthquake. In particular, |
|
|
800
|
Tue Aug 5 17:56:23 2008 |
Alberto | Configuration | General | SRM and PRM inspection | Yoichi, Koji, Rana, Steve, Alberto
Today we opened the [B]BSC[/B] to inspect |
|
|
801
|
Wed Aug 6 11:10:34 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM00 scan | [B]Analysis of the data on August 3th ~ Part
1[/B]
|
|
|
802
|
Wed Aug 6 11:43:52 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM01 scan | [B]Analysis of the data on August 3th ~ Part
2[/B]
|
|
|
805
|
Wed Aug 6 19:01:15 2008 |
Alberto | Update | General | ITMX and SRM OSEM post-earthquake diagnostic | Koji, Yoichi, Alberto
Today we reset the OSEMs on ITMX and SRM |
|
|
838
|
Thu Aug 14 21:52:51 2008 |
Koji | Summary | General | Abs. Len. Meas. ~ summary of my Summer | I have made the summary of the absolute length
measurement.
It is attached here. The file is a bit big |
|
|
875
|
Mon Aug 25 10:23:53 2008 |
steve | HowTo | General | cable killer | Rack 1Y7 double violation:
BNC cables left to be jammed by door
|
|
|
938
|
Wed Sep 10 08:57:03 2008 |
steve | Update | General | etmy illuminator turned off | The ETMY illuminator was left on yesterday.
I just turned it off. |
|
|
940
|
Wed Sep 10 19:53:53 2008 |
Alberto | Update | General | abs length experiment | Update of the last days work on the experiment
to measure the absolute length of the cavities.
|
|
|
943
|
Thu Sep 11 23:28:35 2008 |
alberto | Update | General | abs cavity length experiment | The MC lost lock for some reason not related
to either the FSS or the PMC I'm done with
my measurement for tonight. I've shut the |
|
|
944
|
Fri Sep 12 11:09:20 2008 |
Alberto | Update | General | abs cavity length experiment | I'm leaving the lab for a couple of hours.
I shut the NPRO. The interferometer is available
to anyone. |
|
|
945
|
Sat Sep 13 23:13:01 2008 |
Alberto | Update | General | abs cavity length experiment | The Y arm was locked all time today but, suddenly,
this afternoon it lost lock and since then
I've been unable to restore it. I tried unsuccessfully |
|
|
946
|
Sun Sep 14 18:30:32 2008 |
Alberto | Update | General | ABSL: measured X arm | Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
947
|
Sun Sep 14 19:29:07 2008 |
Alberto | Update | General | ABSL: measured X arm | [quote]Today I measured the X arm FSR.
Hi moved the fast PD (Thor Labs PDA255) from
the Y end table to the X end table. I had |
|
|
956
|
Wed Sep 17 13:58:36 2008 |
Alberto | Update | General | ABSL: results from the X arm | Today I repeated the measurement of the FSR
on the X arm cavity. The noise in the transmitted
power that made the measures fluctuate was |
|
|
960
|
Wed Sep 17 19:13:47 2008 |
Alberto | Update | General | ABSL: status | I installed the setup for measuring TEM01/10
on the X end table.
I'm leaving. I shut the laser, flipped down |
|
|
962
|
Thu Sep 18 09:30:12 2008 |
steve | Update | General | low noise metal film resistors are in | Low noise metal film resistor and capacitor
kits from www.garrettelec.com are in.
|
|
|
979
|
Mon Sep 22 20:00:35 2008 |
Alberto | Update | General | ABSL: running measurement | I'm leaving the X arm locked on the TEm01
mode while a measurement is running. Just
please wait for 40 minute if you need the |
|
|
987
|
Wed Sep 24 17:57:04 2008 |
Alberto | Update | General | ABSL: FSS Slow Actuator Control | Rana, Alberto
Today when I started working with the PLL |
|
|
994
|
Thu Sep 25 17:14:31 2008 |
rana | Configuration | General | new sitemap | |
|
|
1030
|
Tue Oct 7 10:49:29 2008 |
Alberto | Update | General | Displaced Photodiode | This morning I found that the photodidode
of the PLL in the PSL table was not aligned
to the beam anymore. The PD support was not |
|
|
1062
|
Tue Oct 21 16:14:42 2008 |
steve | Update | General | divergence of He Ne 1035P | The ITM oplevs laser diodes are noisy.
They will be replaced by JDS 1035P
SN T8093307 was measured with the beamscanner.
|
|
|
1069
|
Wed Oct 22 17:48:58 2008 |
Yoichi | Update | General | Lenses for focusing the optical lever laser (Re:divergence of He Ne 1035P) | Steve had difficulty in finding lenses for
focusing the HeNe laser for the ITM op-lev.
Following his measurement of the beam divergence, |
|
|
1072
|
Thu Oct 23 15:27:19 2008 |
Alberto | Update | General | Abs length | Here are the measurements I've got yesterday.
The plot shows the transmitted power after
the X arm while sweeping the frequency of |
|
|
1073
|
Thu Oct 23 18:23:47 2008 |
Alberto | Update | General | Abs length | [quote]Here are the measurements I've got
yesterday. The plot shows the transmitted
power after the X arm while sweeping the |
|
|
1074
|
Thu Oct 23 18:27:04 2008 |
Alberto | Update | General | Abs length | [quote]Here are the measurements I've got
yesterday. The plot shows the transmitted
power after the X arm while sweeping the |
|
|
1084
|
Fri Oct 24 11:42:48 2008 |
Alberto | Update | General | Abs length: locking the X arm cavity in TEM01/10 | I went back to lock the arm cavity in either
TEM01 or TEM10 mode. Attached are the results.
We still have several resonances which we |
|
|
1086
|
Fri Oct 24 17:21:13 2008 |
Alberto | Update | General | Abs length: the right amount of beam clipping | I found the reason why the peak at about 6.3MHz
appeared only on the TEM10 mode: the blade
was clipping the beam too much and it was |
|
|
1087
|
Fri Oct 24 18:05:01 2008 |
Alberto | Update | General | Abs length: transverse mode spacing measured for the X arm | The ETMX suffers of astigmatism. I measured
the following frequencies for the higher
order modes:
|
|
|
1108
|
Mon Nov 3 19:12:27 2008 |
alberto | Update | General | Transverse mode spacing measurement for the X arm | I know a lot of expectations have been building
up on these days in the scientific community
at the 40m towards a conclusive elog entry |
|
|
1109
|
Mon Nov 3 19:18:47 2008 |
Alberto | Configuration | General | new elog | Phil Ehrens kindly poured our elog's content
in a CD that now is here at the 40m.
I've been trying to install the 2.7.5 version |
|
|
1110
|
Mon Nov 3 21:38:32 2008 |
Yoichi | Configuration | General | new elog | [quote]I tried to recompile the elog from
the source code but the way gcc is called
must be wrong because I get this error message:
|
|
|
1133
|
Thu Nov 13 15:50:44 2008 |
Alberto | Configuration | General | GPS 10MHz clock | The schematic of the 1Y7 rack that Alan pointed
out (see attachment) don't represent anymore
the actual rack.
|
|
|
1142
|
Mon Nov 17 20:47:19 2008 |
Caryn | Summary | General | Drove MC at 28kHz to excite drum modes | Rana, Alberto and I observed drum mode frequencies
at 23.221kHz(MC1), 28.039kHz(MC2), 28.222kHz(MC3)
while driving the mode cleaner. We observed |
|
|
1145
|
Tue Nov 18 19:44:53 2008 |
Alberto | Update | General | X Arm Cavity "Negative" FSRs Measured | Previous measurements on the X arm cavity
revealed a shift of the frequencies of the
cavity resonances from where one would expect |
|
|
1150
|
Fri Nov 21 16:03:50 2008 |
rana | HowTo | General | Recharging Batteries | I found some black & red "Ninja" alkaline
AA batteries in the battery charger. [COLOR=red]This
is dangerous.[/COLOR] Please
|
|
|
1183
|
Sun Dec 7 16:02:46 2008 |
rana | Update | General | Mag 5.1 EQ halfway to Vegas | There was a [URL=http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/ci14408052.php#details]Mag
5.1 EQ[/URL] Friday night at 8:18 PM.
|
|
|
1185
|
Mon Dec 8 00:10:42 2008 |
caryn | Summary | General | calibrating the jenne laser | I apologize in advance for the long list of
numbers in the attachment. I can't seem to
make them hide for some reason.
|
|
|
1187
|
Mon Dec 8 11:54:27 2008 |
Yoichi | Update | General | IFO mirrors aligned | This morning, I re-aligned the IFO mirrors
to see if they were badly moved by the earthquake.
The both arms locked just by the restoring |
|
|
1189
|
Tue Dec 9 10:48:17 2008 |
Caryn | Summary | General | calibrating the jenne laser: impedance mismatch? |
We sent RFout of network analyzer to a splitter,
with one side going back to the network analyzer |
|
|
1194
|
Fri Dec 19 11:18:52 2008 |
Alberto | Configuration | General | Mode Cleaner Temperature Monitor | I reduced from 10 to 5 the gain of the SR560
that Caryn has set up after the lock-in amplifier
nest to the PSL rack because the overload |
|
|
1198
|
Sat Dec 20 23:37:43 2008 |
rob | Omnistructure | General | Saturday Night Fever after presumed power failure |
Just came by to pick something up...
|
|
|
1218
|
Thu Jan 8 20:26:17 2009 |
rob | Omnistructure | General | Earthquake in San Bernardino | Magnitude 4.5
Date-Time
|
|
|
1222
|
Mon Jan 12 10:57:38 2009 |
rob | Update | General | some stuff |
The AS beam was not hitting the AS166 diode,
so I aligned the last little steering mirror |
|
|
1263
|
Mon Feb 2 12:35:22 2009 |
Alberto | Configuration | General | New Elog 2.7.5 in Service on Nodus | I moved the 40m, the Adhikari Lab and the
SUS elogs from Dziban (located in Millikan's
6th floor) to our gateway server Nodus. In |
|
|
1264
|
Mon Feb 2 17:25:44 2009 |
Alberto | Configuration | General | Some little problem with the new elog | For some reason the new elog does not look
exactly like it should.
1) Some of the
editing features are not available.
2) |
|
|
1265
|
Mon Feb 2 18:32:54 2009 |
Alberto | Configuration | General | Some little problem with the new elog |
|
|
|
1266
|
Mon Feb 2 18:51:02 2009 |
Alberto | Configuration | General | New Elog 2.7.5 in Service on Nodus |
|
|