| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
1803
|
Wed Jul 29 11:58:57 2009 |
Alberto | Update | PSL | MC not locking | This morning I found the Mode Cleaner unlocked.
I check the sliders for the mirrors
bias and they have not changed. Also the |
|
|
1817
|
Mon Aug 3 01:08:20 2009 |
Alberto | Update | PSL | MC unlocked | Friday afternoon the mode cleaner got unlocked.
Then some adjustment of the MC1 bias sliders
locked it again. The driftmon showed the |
|
|
1818
|
Mon Aug 3 12:57:09 2009 |
Alberto | Update | PSL | MC unlocked |
|
|
|
1832
|
Wed Aug 5 09:25:57 2009 |
Alberto | DAQ | Computers | fb40m is up | FB40m up and running again after restarting
the DAQ. |
|
|
1837
|
Wed Aug 5 15:57:05 2009 |
Alberto | Configuration | Computers | PMC MEDM screen changed | I added a clock to the PMC medm screen.
I made a backup of the original file
in the same directory and named it *.bk20090805 |
|
|
1841
|
Thu Aug 6 09:22:17 2009 |
Alberto | DAQ | General | can't get trends |
|
|
|
1853
|
Fri Aug 7 11:39:13 2009 |
Alberto | Update | PSL | MZ Alignment | For the last couple of days we've been
trying to find the cause that is preventing
us to get more than 0.85 for the arm power.
After |
|
|
1855
|
Fri Aug 7 14:31:39 2009 |
Alberto | Update | PSL | DAQ REstarted | For some reason a few minutes ago the FB
DAQ crashed and I had to restarted. |
|
|
1877
|
Mon Aug 10 16:41:31 2009 |
Alberto | Configuration | PSL | PMC Visibility | Alberto, Rana
lately we've been trying to better
understand what's preventing the arm power |
|
|
1893
|
Wed Aug 12 15:02:33 2009 |
Alberto | Configuration | Computers | elog restarted | In the last hour or so the elog crashed.
I have restarted it. |
|
|
1936
|
Mon Aug 24 10:43:27 2009 |
Alberto | Omnistructure | Computers | RFM Network Failure | This morning I found that all the front
end computers down. A failure of the RFM
network drove all the computers down. |
|
|
1944
|
Tue Aug 25 21:26:12 2009 |
Alberto | Update | Computers | elog restarted | I just found the elog down and I restarted
it. |
|
|
1945
|
Tue Aug 25 21:36:28 2009 |
Alberto | Update | PSL | reference cavity temp box temporarly out of order |
Is that the reason of the PSL
craziness tonight? See attachment. |
|
|
1949
|
Wed Aug 26 15:42:17 2009 |
Alberto | Update | PSL | reference cavity temp box temporarly out of order |
|
|
|
1951
|
Wed Aug 26 16:11:41 2009 |
Alberto | Update | PSL | reference cavity temp box temporarly out of order | It turned out that half an hour was too
long. In less than that the reference cavity
temperature passed the critical point when |
|
|
1953
|
Wed Aug 26 16:35:03 2009 |
Alberto | Configuration | PSL | PSL reference cavity temperature box modifications | Basically, in addition to the replacement
of the resistors with metal film ones, Peter
replaced the chip that provides a voltage |
|
|
1966
|
Thu Sep 3 23:41:32 2009 |
Alberto | Configuration | LSC | POX (PD3) aligned | Today I aligned the beam to PD3 (POX) since
Steve had moved it.
The DC power read 1.3mV when the |
|
|
1969
|
Mon Sep 7 23:18:01 2009 |
Alberto | Update | Locking | Some locking attempts | Tried
to lock the interferometer but arm power
didn't get over 65. |
|
|
1972
|
Tue Sep 8 12:26:16 2009 |
Alberto | Update | PSL | Connection of the RC heater's power supply replaced | I
have replaced the temporary clamps that were
connecting the RC heater to its power supply |
|
|
2044
|
Fri Oct 2 17:00:06 2009 |
Alberto | Update | General | 40m Update - Requirements on the 5x Frequency Multiplier | Here's the gist of the requirements on
the 5x frequency multiplier for the upgrade
(see attachemnt - despite the preview down |
|
|
2049
|
Mon Oct 5 09:31:05 2009 |
Alberto | Frogs | PSL | PSL laser accidentally turned off | Alberto, Steve,
While I was moving a cart near by
the PSL table I pushed the red emergency |
|
|
2053
|
Mon Oct 5 14:37:29 2009 |
Alberto | Update | ABSL | Absolute Length Meaasurement NPRO is on | In the revival of the experiement length
measurement for the recycling cavities, I
turned the auxiliary NPRO back on. The shutter |
|
|
2108
|
Sun Oct 18 15:46:08 2009 |
Alberto | Configuration | General | Antique, unused QPD removed from the AS table | Inspecting the AS table to make an inventory
of the photodiodes in use around the interferometer,
I found a mysterious photodetector hiding |
|
|
2129
|
Wed Oct 21 15:07:45 2009 |
Alberto | Update | WIKI-40M Update | Photodiodes' configuration for the Upgrade | I uploaded on the Wiki (here)
the results of an inventory over our current
PDs, a list of the new ones that we're going |
|
|
2131
|
Wed Oct 21 17:12:30 2009 |
Alberto | Update | elog | Browser context menu enabled on the Elog under HTM editing mode | On behalf of Steve and of the rest of the
not-native-English community at the 40m willing
to have their browser's spell checker working |
|
|
2174
|
Wed Nov 4 16:49:32 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement | I'm going to work on the X arm to measure
the arm cavity finesse.
The idea is to measure the cavity |
|
|
2175
|
Wed Nov 4 18:35:19 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement |
|
|
|
2176
|
Wed Nov 4 21:46:18 2009 |
Alberto | Update | LSC | Arm Cavity Finesse Measurement |
|
|
|
2177
|
Wed Nov 4 23:17:51 2009 |
Alberto | Update | LSC | X Arm Cavity transfer Function | I measured the transfer function between
MC_TRANS and TRX and I'm attaching the result.
|
|
|
2184
|
Thu Nov 5 19:25:11 2009 |
Alberto | Update | LSC | X Arm Cavity transfer Function |
|
|
|
2185
|
Thu Nov 5 22:30:09 2009 |
Alberto | Update | LSC | X Arm Cavity Transfer Function | It seems that just repeating the measurement
was enough to get a good transfer function
of the x arm cavity. Here's what I got. |
|
|
2186
|
Thu Nov 5 23:09:34 2009 |
Alberto | Update | LSC | Y Arm Cavity Transfer Function | As for the X Arm, this the transfer function
I measured for the Y arm cavity.
|
|
|
2187
|
Fri Nov 6 00:23:34 2009 |
Alberto | Configuration | Computers | Elog just rebooted | The elog just crashed and I rebooted it |
|
|
2188
|
Fri Nov 6 00:24:06 2009 |
Alberto | Update | LSC | Y Arm Cavity Transfer Function |
|
|
|
2189
|
Fri Nov 6 00:40:29 2009 |
Alberto | Update | LSC | Everything put back as it was | I disconnected the setup for the arm cavity
TF measurement. I opened the scitation switch
on the ISS medm screen. I reconnected the |
|
|
2204
|
Sun Nov 8 14:18:25 2009 |
Alberto | Update | SUS | ETMY Watchdogs tripped | This afternoon I re-enabled the ETMY coils
after I found that the watchdogs for the mirror had |
|
|
2205
|
Sun Nov 8 22:50:29 2009 |
Alberto | Update | ASC | IFO Alignment | Tonight I aligned the IFO by running the
scripts one by one.
SRC was far off and I had to align |
|
|
2208
|
Mon Nov 9 11:11:19 2009 |
Alberto | Configuration | LSC | MC2 Watchdogs tripped | The MC2 watchdogs tripped. I just restored
them.
I also had to relock the MZ and then |
|
|
2209
|
Mon Nov 9 11:14:57 2009 |
Alberto | Update | ABSL | Started working on the PSL table | I'm working on the PSL table to set up
the PLL setup for the AbsL experiment. |
|
|
2210
|
Mon Nov 9 12:09:10 2009 |
Alberto | Omnistructure | Environment | BNC Cable Laid Down from South End to East VErtex | I laid down the floor a BNC cable from
the Y End table to the BNC Chamber. The cable
runs next to the east wall. |
|
|
2211
|
Mon Nov 9 13:17:07 2009 |
Alberto | Configuration | ABSL | NPRO on | I turned the auxialiary NPRO for the AbsL
Experiment on. Its shutter stays closed. |
|
|
2213
|
Mon Nov 9 13:26:19 2009 |
Alberto | Omnistructure | Environment | Tidying up BNC cables rack around the lab | We have thousands of miles of BNC cables
in the lab but we still don't find one when
we need it. I decided to solve the problem. |
|
|
2214
|
Mon Nov 9 14:53:47 2009 |
Alberto | Omnistructure | Environment | Tidying up BNC cables rack around the lab | This would be a good trial once you put
the label "BNC only" on
the wall. |
|
|
2217
|
Mon Nov 9 15:11:02 2009 |
Alberto | Update | LSC | Everything put back as it was |
|
|
|
2219
|
Mon Nov 9 16:32:36 2009 |
Alberto | Frogs | Environment | Shot of the white board yesterday before erasing | Yesterday Rana and I needed some room on
the white board in the Control Room. We had
to erase some of the stuff present on the |
|
|
2220
|
Mon Nov 9 18:27:30 2009 |
Alberto | Frogs | Computers | OMC DCPD Interface Box Disconnected from the power Supply | This afternoon I inadvertently disconnected
one of the power cables coming from the power
supply on the floor next to the OMC cabinet |
|
|
2226
|
Tue Nov 10 13:02:36 2009 |
Alberto | Update | LSC | X and Y Arm Cavity Poles Measurement | From fitting the arm cavity transfer functions
I got the following values for the cavity
pole frequencies. |
|
|
2227
|
Tue Nov 10 17:01:33 2009 |
Alberto | Configuration | IOO | c1ioovme and c1iool0 rebooted | This afternoon, while I was trying to add
the StochMon channels to the frames, I rebooted
the c1ioovme and c1iool0. |
|
|
2228
|
Tue Nov 10 17:49:20 2009 |
Alberto | Metaphysics | Computers | Test Point Number Mapping | I found this interesting entry by Rana
in the old (deprecated) elog : here
I wonder if Rolf has ever written |
|
|
2229
|
Tue Nov 10 19:19:57 2009 |
Alberto | Update | ABSL | Rotated polarizer on the PSL table, along the MC input pick off beam | Aligning the beam for the PLL of the AbsL
Experiement I rotated the polarizer along
the path of the MC Input pick off beam (= |
|