| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2491
|
Sat Jan 9 09:47:03 2010 |
Alberto | Update | LSC | Problems trying to lock the arms | This morning I've been having problems
in trying to lock the X arm.
The X arm's filter FM6 in the LSC |
|
|
2492
|
Sat Jan 9 11:07:30 2010 |
Alberto | Update | LSC | Problems trying to lock the arms |
|
|
|
2493
|
Sat Jan 9 15:02:01 2010 |
Alberto | Update | ABSL | PRC scanning | I scanned the PRC in the frequency range
of 30-60 MHz, untill the PLL lost lock. But
everything is working fine.
The |
|
|
2496
|
Sun Jan 10 16:05:51 2010 |
Alberto | Omnistructure | Environment | Lab Thermostats Temperature Lowered by 1 deg F | Rana noticed that recently the temperature
inside the lab has been a little bit too
high. That might be causing some 'unease' |
|
|
2500
|
Mon Jan 11 09:18:44 2010 |
Alberto | Update | General | Measurement running | I'm working on the AbsL experiment. A measurement
which involved the PRC locked is running
at the moment. |
|
|
2501
|
Mon Jan 11 10:01:06 2010 |
Alberto | Omnistructure | Environment | Lab Thermostats Temperature Lowered by 1 deg F |
|
|
|
2502
|
Mon Jan 11 11:06:53 2010 |
Alberto | Update | ABSL | Measurement running |
|
|
|
2504
|
Mon Jan 11 16:59:14 2010 |
Alberto | Update | ABSL | Interferometer Busy | I'm currently running a measurement on
the PRC.
Please don't interfere with the IFO |
|
|
2505
|
Mon Jan 11 19:36:13 2010 |
Alberto | Update | ABSL | Measurement running | Leaving for dinner. Back in ~1hr.
I left a measurement running. Please
don't interfere with it till I'm back. Thanks. |
|
|
2508
|
Tue Jan 12 09:37:05 2010 |
Alberto | Update | ABSL | IFO available | I finished measuring the AbsL for this
morning. The IFO is again available.
Please don't mess up with the |
|
|
2512
|
Wed Jan 13 12:01:06 2010 |
Alberto | Update | Computers | c1dcuepics, c1lsc rebooted this morning | Since last night the alignemtn scripts
couldn't work.
c1lsc wasn't working
properly because attempts to lock the X arm |
|
|
2513
|
Wed Jan 13 12:03:00 2010 |
Alberto | Update | ABSL | Measurement now running. Please be careful | At the moment I'm running a measurement
on the PRC and I'm planning to leave it going
for the time we'll be at the 40m meeting. |
|
|
2519
|
Sun Jan 17 19:18:55 2010 |
Alberto | Update | Computers | Boot fest to restart the computer and c1iscey not responding. | Thi afternoon I found that the RFM network
in trouble. The frontends sync counters had
railed to 16384 counts and some of the computers |
|
|
2521
|
Mon Jan 18 18:34:01 2010 |
Alberto | Update | ABSL | Measurement in progress | I started a long measurement of the PRC's
transmissivity. I'm leaving the lab and I'm
going to be back at about 8 tonight. Please |
|
|
2522
|
Mon Jan 18 20:58:40 2010 |
Alberto | Update | ABSL | Measurement in progress |
|
|
|
2531
|
Tue Jan 19 12:54:39 2010 |
Alberto | Update | ABSL | Measurement in progress | A measurement will be running for the next
hour. Please be careful. |
|
|
2532
|
Tue Jan 19 16:21:18 2010 |
Alberto | Update | ABSL | Watchdogs not working and then fixed | This afternoon the watchdogs stopped working:
they didn't trip when the suspension positions
crossed the threshold values. |
|
|
2534
|
Wed Jan 20 20:11:56 2010 |
Alberto | Update | ABSL | Some preliminary results from measuring PRC's transmissivity for an amplitude modulated beam | Here I'm posting a plot showing a
set of measurements that I made in the past
few days to determine the absolute length |
|
|
2541
|
Fri Jan 22 02:54:06 2010 |
Alberto | Update | ABSL | Overnight measurement | I'm leaving a measurement running overnight.
It should be done in about one hour.
Tomorrow morning, If you need to |
|
|
2543
|
Fri Jan 22 14:40:49 2010 |
Alberto | Update | ABSL | Overnight measurement |
|
|
|
2545
|
Mon Jan 25 16:30:37 2010 |
Alberto | Update | ABSL | 166 MHz sideband turned off | I turned off the modulation at 166MHZ
becasue I don't need it if I'm only locking
the PRC. |
|
|
2546
|
Mon Jan 25 16:46:33 2010 |
Alberto | Update | ABSL | 166 MHz sideband turned off |
|
|
|
2550
|
Wed Jan 27 11:02:30 2010 |
Alberto | Update | ABSL | PRC Cavity Length | I fitted the data from scanning
the PRC by changing the beat frequency of
the auxiliary laser beam with the PSL beam.
The |
|
|
2551
|
Thu Jan 28 09:14:51 2010 |
Alberto | Configuration | Computers | c1iscey, c1iscex, c1lsc, c1asc rebooted | This morning the LSC scripts wheren't running
properly. I had to reboot c1iscey, c1iscex,
c1lsc, c1asc . |
|
|
2552
|
Thu Jan 28 09:17:32 2010 |
Alberto | Update | LSC | 166 Modulation turned off | I temporarily turned off the 166 modulation. |
|
|
2553
|
Fri Jan 29 12:06:58 2010 |
Alberto | Update | ABSL | Measurement running today at lunch time | I just started a measuremtn that will be
running for the next hour or so. Please be
careful with the interferometer. |
|
|
2554
|
Fri Jan 29 13:14:49 2010 |
Alberto | Update | ABSL | Measurement running today at lunch time |
|
|
|
2560
|
Tue Feb 2 15:30:03 2010 |
Alberto | Frogs | Treasure | Wild Oats | FYI. Sitting on the top shelf of George
I found an opened jar of raspberry jam and
an opened jar of creamy peanut butter. Both |
|
|
2562
|
Tue Feb 2 18:15:47 2010 |
Alberto | Update | elog | Elog restarted it | Zach made me notice that the elog
had crashed earlier on this afternoon.
I just restarted it with the restarting |
|
|
2567
|
Wed Feb 3 10:46:12 2010 |
Alberto | Update | elog | elog restarted | Again, this morning Zach told me
that the elog had crashed while he was trying
to post an entry. |
|
|
2576
|
Mon Feb 8 14:13:03 2010 |
Alberto | Update | ABSL | PLL Characterization | Lately I've been trying to improve the
PLL for the AbsL experiment so that it could
handle larger frequency steps and thus speed |
|
|
2577
|
Mon Feb 8 14:56:17 2010 |
Alberto | Update | ABSL | Suddenly a much better alignment of PRC | I just aligned PRM and locked PRC and I
noticed that SPOB is much higehr than it
used to be. It's now about 1800, vs 1200 |
|
|
2579
|
Mon Feb 8 15:41:51 2010 |
Alberto | Update | ABSL | Suddenly a much better alignment of PRC |
|
|
|
2581
|
Tue Feb 9 09:07:06 2010 |
Alberto | Update | ABSL | PLL Characterization |
|
|
|
2582
|
Tue Feb 9 10:10:58 2010 |
Alberto | Update | ABSL | back to analog | I want to try to do the measurement with
the network analyzer used as local oscillator,
instead of the Marconis that I'm using now. |
|
|
2604
|
Tue Feb 16 09:51:22 2010 |
Alberto | Update | Green Locking | take some optics away from the ETM end table |
|
|
|
2605
|
Tue Feb 16 10:01:16 2010 |
Alberto | Configuration | LSC | Arms and PRC not locking | Since last Friday either the arms or the
PRC can't lock.
The montors show the beam flashing |
|
|
2608
|
Tue Feb 16 15:25:00 2010 |
Alberto | Configuration | LSC | Arms and PRC not locking |
|
|
|
2640
|
Thu Feb 25 15:49:05 2010 |
Alberto | AoG | CDS | New IO Chassis for the new CDS | Yesterday Kiwamu and I went to Downs
to take all the available parts of the IO
chassis that Gary and I had put together |
|
|
2653
|
Wed Mar 3 18:32:25 2010 |
Alberto | Update | 40m Upgrading | 11 MHz RFPD elctronics | ** Please
add LISO file w/ component values.
|
|
|
2655
|
Thu Mar 4 08:43:35 2010 |
Alberto | Update | 40m Upgrading | 11 MHz RFPD elctronics |
|
|
|
2656
|
Thu Mar 4 19:53:56 2010 |
Alberto | Update | 40m Upgrading | 11MHz PD designed adjusted for diode's resistance; 55 MHz RFPD designed | After
reading this study done |
6x |
|
2680
|
Thu Mar 18 12:27:56 2010 |
Alberto | Update | ABSL | PLL reconstructed |
|
|
|
2702
|
Tue Mar 23 15:38:26 2010 |
Alberto | Update | elog | elog just restarted | I found the elog down and I restarted it.
Then, after few seconds it was down
again. Maybe someone else was messing with |
|
|
2704
|
Tue Mar 23 22:46:43 2010 |
Alberto | Update | 40m Upgrading | REFL11 upgraded | I modified REFL11 according to the changes
lsited in this
schematic (see wiki / Upgrade 09 |
|
|
2710
|
Wed Mar 24 14:52:02 2010 |
Alberto | Update | Green Locking | two NPRO PLL |
|
|
|
2711
|
Wed Mar 24 14:57:21 2010 |
Alberto | Update | 40m Upgrading | REFL11 upgraded |
Hartmut suggested a possible
explanation for the way the electronics transfer |
|
|
2715
|
Thu Mar 25 17:32:42 2010 |
Alberto | Update | 40m Upgrading | REFL55 Upgraded | I upgraded the old REFL199 to the new REFL55.
To do that I had to replace the old
photodiode inside, switching to a 2mm one. |
|
|
2732
|
Mon Mar 29 21:43:27 2010 |
Alberto | Configuration | PSL | Reference Cavity PD Noise Spectrum | [Rana, Alberto]
This evening we measured the noise
spectrum of the reference cavity PD used |
|
|
2758
|
Fri Apr 2 08:52:21 2010 |
Alberto | Update | elog | elog restarted | i just restarted the elog for the third
time in the past 12 hours.
I checked the elog.log file to debug |
|