| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
14311
|
Tue Nov 20 17:38:13 2018 |
rana | Update | Upgrade | New Coffee Machine | Rana, Aaron, Gautam
The |
|
|
14310
|
Tue Nov 20 13:13:01 2018 |
gautam | Update | VAC | IMC alignment is okay | I checked the IMC alignment following the
vent, for which the manual beam block placed
on the PSL table was removed. The alignment |
|
|
14309
|
Mon Nov 19 23:38:41 2018 |
Jon | Omnistructure | | Vacuum Acromag Channel Assignments | I've completed bench testing of all
seven vacuum Acromags installed in a custom
rackmount chassis. The system contains |
|
|
14308
|
Mon Nov 19 22:45:23 2018 |
Jon | Omnistructure | | Vacuum System Subnetwork | I've set up a closed subnetwork for
interfacing the vacuum hardware (Acromags
and serial devices) with the new controls |
|
|
14307
|
Mon Nov 19 22:01:50 2018 |
gautam | Update | VAC | Loose nut on valve | As I was turning off the lights in the
VEA, I heard a rattling sound from near the
PSL enclosure. I followed it to a valve - |
|
|
14306
|
Mon Nov 19 17:09:00 2018 |
Steve | Update | VAC | Vent 81 | Gautam, Aaron, Chub and Steve,
|
|
|
14305
|
Mon Nov 19 14:59:48 2018 |
Chub | Update | VAC | Vent 81 | Vent 80 is nearly complete; the instrument
is almost to atmosphere. All four ion
pump gate valves have been disconnected, |
|
|
14304
|
Sun Nov 18 17:09:02 2018 |
gautam | Update | General | Vent prep | Vent prep
Following the checklist,
I did these: |
|
|
14303
|
Sun Nov 18 00:59:33 2018 |
gautam | Update | General | Vent prep | I've begun prepping the IFO for the
vent, and completed most of the IFO related
items on the checklist. |
|
|
14302
|
Sat Nov 17 18:59:01 2018 |
aaron | Update | IOO | IMC problematic | I made additional measurements on the x
and y arms, at 5 offset positions for each
arm (along with 6 measurements at the "zeroed" |
|
|
14301
|
Fri Nov 16 15:09:31 2018 |
Steve | Configuration | VAC | not venting cryo and ion pumps | Notes on the ion pumps and cryo pump:
Our
4 ion pumps were closed off for a lomg time.
I estmated their pressure to be around ~1 |
|
|
14300
|
Fri Nov 16 10:53:07 2018 |
aaron | Update | IOO | IMC problematic | Back to loss measurements.
I replaced the PD I've been
using for the AS beam. |
|
|
14299
|
Fri Nov 16 10:26:12 2018 |
Steve | Update | VAC | single viton O-rings | The 40m vacuum envelope has one large single
O-ring on the OOC west side. All other doors
have double O-ring with annuloses. |
|
|
14298
|
Fri Nov 16 00:47:43 2018 |
gautam | Update | LSC | More DRMI characterization | Summary:
More DRMI characterization
was done.
I was working on trying |
|
|
14297
|
Thu Nov 15 10:21:07 2018 |
aaron | Update | IOO | IMC problematic | I ran a BNC from the PD on the AS table
along the cable rack to a free ADC channel
on the LSC whitening board. I lay the BNC |
|
|
14296
|
Wed Nov 14 21:34:44 2018 |
Jon | Omnistructure | | Vacuum Acromags installed and tested | All 7 Acromag units are now installed in
the vacuum chassis. They are connected to
24V DC power and Ethernet. |
|
|
14295
|
Wed Nov 14 18:58:35 2018 |
aaron | Update | DAQ | New DAC for the OMC | I began moving the AA and AI chassis over
to 1X1/1X2 as outlined in
the elog. |
|
|
14294
|
Wed Nov 14 14:35:38 2018 |
Steve | Update | ALARM | emergency calling list for 40m Lab | It is posted at the 40m
wiki with Gautam' help. Printed copies
posted around doors also. |
|
|
14293
|
Tue Nov 13 21:53:19 2018 |
gautam | Update | CDS | RFM errors | This
problem resurfaced, which I noticed when
I couldn't get the single arm locks going. |
|
|
14292
|
Tue Nov 13 18:09:24 2018 |
gautam | Update | LSC | Investigation of SRCL-->MICH coupling | Summary:
I've been looking into the
cross-coupling from the SRCL loop control |
|
|
14291
|
Tue Nov 13 16:15:01 2018 |
Steve | Update | VAC | rga scan pd81 at day 119 |
|
|
|
14290
|
Mon Nov 12 13:53:20 2018 |
rana | Update | IOO | loss measurement: oscope vs CDS DAQ | sstop using the ssscope, and just put the
ssssignal into the DAQ with sssssome whitening.
You'll get 16 bitsśšß. |
|
|
14289
|
Sat Nov 10 17:40:00 2018 |
aaron | Update | IOO | IMC problematic | Gautam was doing some DRMI locking, so
I replaced the photodiode at the AS port
to begin loss measurements again. |
|
|
14288
|
Sat Nov 10 17:32:33 2018 |
gautam | Update | LSC | Nulling MICH->PRCL and MICH->SRCL | With the DRMI locked, I drove a line in
MICH using the sensing matrix infrastructure.
Then I looked at the error points of MICH, |
|
|
14287
|
Fri Nov 9 22:24:22 2018 |
Jon | Omnistructure | | Wiring of Vacuum Acromag Chassis Complete | Wiring of the power, Ethernet, and indicator
lights for the vacuum Acromag chassis is
complete. Even though this crate will only |
|
|
14286
|
Fri Nov 9 15:00:56 2018 |
gautam | Update | IOO | No IFO beam as TT1 UL hijacked for REFL55 check | This
problem resurfaced. I'm doing the
debugging. |
|
|
14285
|
Wed Nov 7 23:07:11 2018 |
gautam | Update | LSC | DRMI locking recovered | I had some
success today. I hope that the tweaks I made
will allow working with the DRMI during the |
|
|
14284
|
Wed Nov 7 19:42:01 2018 |
gautam | Update | General | IFO checkup and DRMI locking prep | Earlier today, I rebooted a few unresponsive
VME crates (susaux, auxey).
The IMC has been unhappy for a |
|
|
14283
|
Wed Nov 7 19:20:53 2018 |
gautam | Update | Computers | Paola Battery Error | The VEA vertex laptop, paola,
has a flashing orange indicator which I take |
|
|
14282
|
Wed Nov 7 19:17:18 2018 |
Jon | Omnistructure | | modbusIOC is running on c1vac replacement | Today I finished setting up the server
that will replace the c1vac1/2 machines.
I put it on the martian network at the unassigned |
|
|
14281
|
Wed Nov 7 08:32:32 2018 |
Steve | Update | VAC | c1vac1 FAIL lights on (briefly)...checked | The vacuum and MC are OK
|
|
|
14280
|
Wed Nov 7 05:16:16 2018 |
yuki | Update | Computer Scripts / Programs | arm loss measuremenents | Please check your data file and compare
with those Johannes made last year.
I think the power in your data file may have |
|
|
14279
|
Tue Nov 6 23:19:06 2018 |
gautam | Update | VAC | c1vac1 FAIL lights on (briefly) | Jon and I stuck a extender card into the
eurocrate at 1X8 earlier today (~5pm PT),
to see if the box was getting +24V DC from |
|
|
14278
|
Tue Nov 6 19:41:46 2018 |
Jon | Omnistructure | | c1vac1/2 replacement | This afternoon I started setting up the
Supermicro 5017A-EP that will replace c1vac1/2.
Following Johannes's procedure in |
|
|
14277
|
Tue Nov 6 19:02:35 2018 |
aaron | Update | IOO | IMC problematic | That was likely me. I had recentered the
beam on the PD I'm using for the armloss
measurements, and I probably moved |
|
|
14276
|
Tue Nov 6 15:32:24 2018 |
Steve | Update | PSL | MC_Transmitted | I tried to plot a long trend MC Transmitted
today. I could not get farther than
2017 |
|
|
14275
|
Tue Nov 6 15:23:48 2018 |
gautam | Update | IOO | IMC problematic | The
IMC has been misbehaving for the last 5 hours. |
|
|
14274
|
Tue Nov 6 10:19:26 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | I'm checking out the data this morning,
running armloss_AS_calc.py using the parameters |
|
|
14273
|
Tue Nov 6 10:03:02 2018 |
Steve | Update | Electronics | Contec board found | The Contec test board with Dsub37Fs was
on the top shelf of E7 |
|
|
14272
|
Tue Nov 6 09:45:32 2018 |
aaron | Metaphysics | Treasure | Zojirushi is dead | New
all organic machine. |
|
|
14271
|
Mon Nov 5 15:55:39 2018 |
Steve | Metaphysics | Treasure | Zojirushi is dead | We
have no coffee machine.
We |
|
|
14270
|
Mon Nov 5 13:52:18 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | After running this script Friday night,
i noticed Saturday that the data hadn't
saved. Scrolling up inthe terminal, I couldn't |
|
|
14269
|
Fri Nov 2 19:25:16 2018 |
gautam | Update | Computer Scripts / Programs | loss measurements | Some facts which should be considered when
doing this measurement and the associated
uncertainty: |
|
|
14268
|
Fri Nov 2 16:42:31 2018 |
aaron | Update | Computer Scripts / Programs | arm loss measuremenents | I'm continuing the arm loss measurements
Yuki was making. I'm first familiarizing
myself with the procedures for the measurement |
|
|
14267
|
Fri Nov 2 12:07:16 2018 |
rana | Update | CDS | NDScope | https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=44971
Let's install Jamie's new
Data Viewer |
|
|
14266
|
Fri Nov 2 10:24:20 2018 |
Steve | Update | PEM | roof cleaning | Physical plan is cleaning our roof and
gutters today. |
|
|
14265
|
Fri Nov 2 09:47:57 2018 |
Steve | Metaphysics | Treasure | Zojirushi is dead | It took at least
ten years to rust away. |
|
|
14264
|
Wed Oct 31 17:54:25 2018 |
gautam | Update | VAC | CC1 hornet power connection restored | Steve reported to me that the CC1 Hornet
gauge was not reporting the IFO pressure
after some cable tracing at EX. I found that |
|
|
14263
|
Thu Oct 25 16:17:14 2018 |
Steve | Update | safety | safety training | Chub Osthelder
received 40m specific basic safety traning
today. |
|
|
14262
|
Mon Oct 22 15:19:05 2018 |
Steve | Update | VAC | Maglev controller serviced | Gautam & Steve,
Our controller is back with Osaka
maintenace completed. We swapped it in this |
|