| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
11225
|
Sun Apr 19 15:03:26 2015 |
Jenne | Update | Electronics | Low noise pre-amps? | Does anyone know where the Busby
or Rai low noise pre-amp boxes are?
|
|
|
11226
|
Mon Apr 20 16:18:29 2015 |
Jenne | Update | Electronics | Low noise pre-amps: returned | The Rai box was in the Cryo lab, and the
Busby box was in the TCS lab. Neither
had been signed out. Lame. Anyhow, |
|
|
11229
|
Tue Apr 21 01:17:13 2015 |
Jenne | Update | Modern Control | T-240 self-noise propagated through stack and pendulum | Going back to Wiener filtering for a moment,
I took a look at what the T-240 noise level
looks like in terms of pitch motion on one |
|
|
11242
|
Fri Apr 24 01:16:30 2015 |
Jenne | Update | ASC | Broken Xass? | I ran the "off" script for the
Xarm ASS, followed by the "on"
script, and now the Xarm ASS doesn't |
|
|
11243
|
Fri Apr 24 17:30:32 2015 |
Jenne | Update | VAC | Pressure watch script broken |
|
|
|
11254
|
Sun Apr 26 14:17:40 2015 |
Jenne | Update | LSC | POXDC, POYDC unplugged for now | I have unplugged POXDC and POYDC from their
whitening inputs. They have labels
on them which whitening channel they belong |
|
|
11255
|
Sun Apr 26 15:05:35 2015 |
Jenne | Update | ASC | unBroken Xass? | Thank you both.
I have updated the .snap file,
so that it'll use these parameters, as |
|
|
11256
|
Sun Apr 26 15:34:34 2015 |
Jenne | Update | SUS | PRM oplev centered | After last week's work on the BS/PRM
oplev table, I think the PRM oplev got centered
while the PRM was misaligned. With |
|
|
11258
|
Mon Apr 27 01:13:08 2015 |
Jenne | Update | LSC | PRCL angular FF not working, no locking :( | I'm sad. And frustrated.
The PRCL angular feed forward is
not working, and without it I am having a |
|
|
11366
|
Fri Jun 19 16:54:20 2015 |
Jenne | Update | Computer Scripts / Programs | Wiener scripts in scripts directory | I have put the Wiener filter scripts into
/opt/rtcds/caltech/c1/scripts/Wiener/ |
|
|
11507
|
Fri Aug 14 17:20:01 2015 |
Jenne | Update | PEM | Gur interface box is wonky | IIRC, the Guralp box's 3rd set of channels
do not have all of the modifications that
were made on channels 1 and 2. |
|
|
11639
|
Wed Sep 23 12:51:03 2015 |
Jenne | Update | LSC | DRMI + ALS Arms | Nice!! |
|
|
11677
|
Fri Oct 9 11:24:06 2015 |
Jenne | Update | LSC | DRFPMI Progress | I hope the grappa was already cold, and
ready to drink! |
|
|
3267
|
Thu Jul 22 13:44:47 2010 |
Jenna | Update | PEM | Guralp seismometer | One of the Guralps [Gur2] has been taken
to the atf gyro lab, along with the breakout
box. |
|
|
3392
|
Tue Aug 10 15:23:35 2010 |
Jenna | Update | Electronics | Rubidium clock time constant | [Jenna & Alastair]
We changed the locking time constant
on one of the Rubidium clocks using the RbMon |
|
|
3393
|
Tue Aug 10 16:55:38 2010 |
Jenna | Update | Electronics | c1iovme restarted | Alastair
and I restarted the c1iovme around the time
of my last elog entry (~3:20). |
|
|
3398
|
Wed Aug 11 12:58:56 2010 |
Jenna | Update | Electronics | Rubidium clock phase noise | I took some measurements of the clock this
morning, first without the box, then with
the box, then without the box again. All |
|
|
3400
|
Wed Aug 11 15:27:16 2010 |
Jenna | Update | Electronics | Rubidium clock phase noise | We unsynched the clocks by unhooking the
1pps locking. I've added it to the plot of
the other measurements here, and we've divided |
|
|
3401
|
Wed Aug 11 16:13:59 2010 |
Jenna | Update | elog | elog restarted | The elog crashed, so we restarted it again. |
|
|
3402
|
Wed Aug 11 16:38:02 2010 |
Jenna | Update | Electronics | Rubidium clock phase noise |
|
|
|
3409
|
Thu Aug 12 16:18:00 2010 |
Jenna | Update | Electronics | Rb clocks overnight | I took a look at the data from the middle
of the night to see if it was significantly
quieter than the data from the day, but it |
|
|
3423
|
Fri Aug 13 20:58:20 2010 |
Jenna | Summary | Electronics | Rubidium clock phase noise measurement | Here's an overview of the rubidium
measurement:
|
6x |
|
16802
|
Fri Apr 22 07:01:58 2022 |
Jc | Update | Coil Drivers | Adding Resistors and Reinstalling | [Koji, JC]
Coil Drivers LO2, SR2, AS4, and
AS1 have been updated a reinstalled into |
8x |
|
16846
|
Thu May 12 13:46:59 2022 |
Jc | Update | Alignment | POP Beam | [Tega, JC]
Tega and I went in to adjust the
POP being in the ITMX Table. The beam entered |
|
|
17561
|
Tue Apr 25 15:51:21 2023 |
Jc | Update | IMC | IMC has been tripping | It has happened multiple times today that
IMC has tripped on its own. Yehonathan and
I have had to come back to manually lock |
|
|
17682
|
Thu Jul 13 15:48:34 2023 |
Jc | Update | General | Green laser at Y-End | [Yuta, JC]
Yuta and I tested |
|
|
10879
|
Thu Jan 8 19:02:42 2015 |
Jax | Summary | Electronics | MC demod modifications | Here's a summary of the changes made
to the D990511 serial 115 (formerly
known as REFL 33), as well as a short procedure. |
|
|
16769
|
Mon Apr 11 11:00:30 2022 |
Jancarlo | Update | VAC | C1VAC Reboot and Nitrogen tanks | [Paco, JC, Ian, Jordan, Chub]
Checking in the morning, I walked
over to the Nitrogen tanks to check the levels. |
|
|
16784
|
Mon Apr 18 15:17:31 2022 |
Jancarlo | Update | General | Tool box and Work Station Organization | I cleaned up around the 40 m lab. All the
Laser Safety Glasses have been picked up
and placed on the rack at the entrance. |
|
|
7199
|
Wed Aug 15 20:15:51 2012 |
Jan | Update | IOO | Ringdown measurements |
|
|
|
9357
|
Wed Nov 6 17:21:58 2013 |
Jamit | Update | CDS | FB not talking to LSC? |
|
|
|
9135
|
Tue Sep 17 17:55:42 2013 |
Jamie. | Configuration | Computer Scripts / Programs | pyepics configured |
|
|
|
13133
|
Sun Jul 23 22:16:55 2017 |
Jamie, gautam | Update | CDS | front-end now running with new OS, RCG | All front
ends and model are (mostly) running now
|
|
|
8225
|
Mon Mar 4 19:52:03 2013 |
Jamie, Yuta | Update | General | input pointing mirror (TT1/TT2) control improved | We improved the active tip-tilt (TT) controllers
such that they now have filter banks at the
PIT/YAW inputs, and at the coil outputs: |
|
|
4962
|
Tue Jul 12 11:52:54 2011 |
Jamie, Suresh | Update | LSC | LSC model updates | The LSC model has been updated:
Binary outputs to control whitening
filter switching
We now take the |
|
|
7174
|
Tue Aug 14 11:39:13 2012 |
Jamie, Rolf, Alex | Update | CDS | Debugging of c1sus machine and c1rfm models | Rolf and Alex came over this morning to
see if they could help debug some issues
we have been seeing with IPC transmission |
|
|
4868
|
Thu Jun 23 21:35:46 2011 |
Jamie, Rana, Kiwamu | Update | SUS | Fix calibration for sus sensors | We have fixed the counts-to-micron (cts2um)
calibration for the suspension sensor filters.
Each suspension sensor filter bank (e.g. |
|
|
8545
|
Tue May 7 20:09:10 2013 |
Jamie, Rana | Update | PSL | PMC problem was FSS slow actuator | Rana showed up and diagnosed the problem
as a railed FSS SLOW output. The SLOW
Monitor about was showing ~6V, which is apparently |
|
|
4493
|
Wed Apr 6 18:55:49 2011 |
Jamie, Larisa | Configuration | LSC | major AP table cleanup | We ripped out all of the old AS, PLL, and
REFL paths, green, orange, and cyan respectively
on the old |
|
|
4808
|
Mon Jun 13 12:34:21 2011 |
Jamie, Koji | Update | LSC | Updated LSC model installed | After a couple of hickups, I was able to
compile and install Koji's rework of the
LSC model. |
|
|
8598
|
Fri May 17 18:58:58 2013 |
Jamie, Koji | Summary | CDS | Weird DAC bit flipping at half integer output values | While looking at the DAC anti-imaging filters,
Koji noticed an odd feature of the DAC output:
|
|
|
4733
|
Tue May 17 18:09:13 2011 |
Jamie, Kiwamu | Configuration | CDS | c1sus and c1auxey crashed, rebooted | c1sus and
c1auxey crashed, required hard reboot |
|
|
4818
|
Tue Jun 14 18:12:34 2011 |
Jamie, Kiwamu | Update | LSC | LSC seems to be fully recovered | We are now locking the arms reliably, with
reasonable transmitted power. We zeroed
the LSC offsets with script, since they were |
|
|
5012
|
Thu Jul 21 12:19:29 2011 |
Jamie, Kiwamu | Update | IOO | MC Trans QPD working, now locking | It turns out that the MC_TRANS_SUM signal
was being derived from the SUS-MC2_OL_SUM_INMON
channel in the ioo.db file. |
|
|
4790
|
Mon Jun 6 18:29:01 2011 |
Jamie, Joe | Update | CDS | COMPLETE FRONT-END REBUILD (WITH PROBLEMS (fixed)) | Today Joe and I undertook a FULL rebuild
of all front end systems with the head of
the 2.1 branch of the RCG. Here is |
|
|
4809
|
Mon Jun 13 15:33:55 2011 |
Jamie, Joe | Update | CDS | Dolphin fiber between 1Y3 and 1X4 appears to be dead | The fiber that connects the Dolphin card
in the c1lsc machine (in the 1Y3 rack) to
the Dolphin switch in the 1X4 rack appears |
|
|
4811
|
Mon Jun 13 18:40:08 2011 |
Jamie, Joe | Update | CDS | Snags in the repair of LSC CDS | We've run into a problem with our attempts
to get the LCS control back up and running.
As reported previously, the Dolphin |
|
|
4812
|
Mon Jun 13 19:26:42 2011 |
Jamie, Joe | Configuration | CDS | SUS binary IO chassis 2 and 3 moved from 1X5 to 1X4 | While preping 1X4 for installation of c1lsc,
we removed some old VME crates that were
no longer in use. This freed up lots |
|
|
4816
|
Tue Jun 14 12:23:44 2011 |
Jamie, Joe | Update | CDS | WE ARE ALL GREEN! LSC back up and running in new configuration. | After moving the c1lsc computer to 1X4,
then connecting c1lsc to it's IO chassis
in 1Y3 by a fiber PCIe extension cable, everything |
|
|
4993
|
Tue Jul 19 23:39:11 2011 |
Jamie, Jenne | Update | LSC | Major overhaul of LSC rack; binary switching of whitening filters now working | Yesterday we started going through the
LSC binary whitening switching to make sure
the new switching control in the LSC model |
|