| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
7390
|
Fri Sep 14 18:18:33 2012 |
Jenne | Update | General | In Vac Pictures |
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7391
|
Fri Sep 14 18:28:25 2012 |
Jenne | Update | General | In Vac Pictures | All the photos so far:
PZT1:
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14614
|
Thu May 16 22:58:25 2019 |
gautam | Update | ASS | In air ASS test with green? | We were wondering yesterday if we can somehow
test the ASS system in air. Though the arm
cavity can be locked with the low power IMC |
|
|
12353
|
Fri Jul 29 03:59:55 2016 |
ericq | Update | SUS | In air OSEM diagonalization check | The question arose whether we can get good
enough data to diagonize our OSEM sensing
matrices in air. |
|
|
460
|
Tue Apr 29 21:30:49 2008 |
Andrey | Update | PEM | In the process of renaming channels for Weather Station |
I startted renaming channels for the weather
station, and I will continue this tomorrow, |
|
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7314
|
Thu Aug 30 00:08:34 2012 |
jamie | Update | General | In vac plans for tomorrow, 8/30 |
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7315
|
Thu Aug 30 08:12:39 2012 |
Steve | Update | General | In vac plans for tomorrow, 8/30 |
1,PRM spot can be viewed directly
from the window south-east of ITMX chamber. |
|
|
14069
|
Fri Jul 13 20:36:33 2018 |
Koji | Summary | General | In vac/In air heater wiring | I went to the Y-end and took more photos
of the cable stand. These revealed that in-vac
pin #13 is connected to the shield of the |
|
|
846
|
Mon Aug 18 11:50:29 2008 |
Yoichi | Update | SUS | In vacuum free swinging results | The first attachment is the results of the
free swinging spectra measurement performed
in vacuum this morning.
|
|
|
9608
|
Thu Feb 6 16:41:31 2014 |
ericq | Update | General | In-Vac Alignment | [Manasa, ericq]
Both arms |
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|
9609
|
Fri Feb 7 12:43:12 2014 |
ericq | Update | General | In-Vac Alignment | [ericq]
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9610
|
Fri Feb 7 13:00:52 2014 |
Jenne | Update | General | In-Vac Alignment |
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9611
|
Fri Feb 7 13:30:22 2014 |
Gabriele | Update | General | In-Vac Alignment |
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|
9612
|
Fri Feb 7 13:30:25 2014 |
ericq | Update | General | In-Vac Alignment |
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15464
|
Thu Jul 9 17:12:52 2020 |
gautam | Update | BHD | In-air BHD | Summary:
We can probably learn something
about the interferometer / top level BHD |
|
|
15493
|
Sun Jul 19 15:40:15 2020 |
gautam | Update | BHD | In-air BHD - CDS and wiring summary | Attachment
#1 shows the proposed |
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|
15505
|
Wed Jul 29 11:57:59 2020 |
rana | Update | BHD | In-air BHD - CDS and wiring summary | 3. I agree - this whitening will be handy
to have for diagnostics.
4. I think in principle, we can |
|
|
15479
|
Tue Jul 14 15:29:25 2020 |
gautam | Update | BHD | In-air BHD - DCPD amplifier noise | For the first pass, it's probably easiest
to use the existing DCPD
amplifier. Looking at the gain and noise |
|
|
15497
|
Tue Jul 21 00:30:24 2020 |
gautam | Update | BHD | In-air BHD - LO RIN | Attachment
#1 shows the RIN of |
|
|
15483
|
Wed Jul 15 19:11:40 2020 |
gautam | Update | BHD | In-air BHD - alignment into OMC | I forgot about the pointing - probably
we will need another actuator to control
the pointing of the AS beam onto the DCPDs. |
|
|
Draft
|
Wed Jul 15 19:17:09 2020 |
gautam | Update | BHD | In-air BHD - alignment into OMC | You can activate all 3axis
|
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|
15489
|
Thu Jul 16 01:12:22 2020 |
gautam | Update | BHD | In-air BHD - preparing the LO path | Attachment
#1 - The 80mW pickoff |
|
|
15495
|
Mon Jul 20 17:55:15 2020 |
gautam | Update | BHD | In-air BHD - preparing the LO path | The LO pickoff has been coupled into a
fiber with ~90% MM (8 mW / 9 mW input). While
I wait for the DCPD electronics to be found |
|
|
16530
|
Tue Dec 21 16:52:39 2021 |
Anchal | Summary | Electronics | In-air Sat Amp to Vacuum Flange cables laid for 7 new SOS | [Anchal, Yehonathan, Chub]
We today laid down 14 70 ft long
DB25 cables from 1Y1 (6), 1Y0 (8) to ITMY |
|
|
7877
|
Mon Jan 7 00:08:16 2013 |
Jenne | HowTo | Alignment | In-vac plan | List of things to do, in order:
* Remove BS heavy door.
Steve, |
|
|
16891
|
Mon Jun 6 09:37:16 2022 |
JC | Update | SUS | InMatCalc | [Paco, JC]
Paco and I attempted to calculate
the input matrices from May 24, 2022, but |
|
|
5924
|
Thu Nov 17 11:51:14 2011 |
Jenne | Update | Environment | Incandescent vs. fluorescent lights? | I'm just on an elog roll this morning...
Again while poking around inside
the IFO room, I noticed that they have replaced |
|
|
5695
|
Wed Oct 19 12:06:26 2011 |
Mirko | Update | CDS | Included the MC servo channel in CDS | [Jamie, Mirko]
Included the 'Servo' output from
the D040180 in c1ioo, which I hoped would |
|
|
3322
|
Thu Jul 29 17:11:16 2010 |
Gopal | Update | COMSOL Tips | Including Gravity in COMSOL | [Gopal, Jan]
|
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|
10634
|
Thu Oct 23 02:08:40 2014 |
Jenne | Update | LSC | Increased DARM gain | I changed the carm_cm_up.sh script so
that it requires fewer human interventions.
Rather than stopping and asking for things |
6x |
|
10637
|
Fri Oct 24 02:14:05 2014 |
Jenne | Update | LSC | Increased DARM gain even more | [Jenne, Diego]
We spent the afternoon working on
the new scan for IR resonance script. |
|
|
2000
|
Thu Sep 24 21:04:15 2009 |
Jenne | Update | MOPA | Increasing the power from the MOPA | [Jenne, Rana, Koji]
Since |
|
|
2007
|
Sun Sep 27 12:52:56 2009 |
rana | Update | MOPA | Increasing the power from the MOPA | This is a trend of the last 20 days. After
our work with the NPRO, we have recovered
only 5% in PMC trans power, although there's |
|
|
14463
|
Sun Feb 17 17:35:04 2019 |
gautam | Summary | Loss Measurement | Inferred X arm loss | Summary:
To complete the story before moving
on to ALS, I decided to measure the X arm |
|
|
14454
|
Thu Feb 14 21:29:24 2019 |
gautam | Summary | Loss Measurement | Inferred Y arm loss | Summary:
From the measurements I have, the
Y arm loss is estimated to be 58 |
|
|
15163
|
Tue Jan 28 14:33:24 2020 |
gautam | Update | PSL | Inferred free-running frequency noise | To conclude my PMC noise investigations:
Attachment |
|
|
16323
|
Mon Sep 13 17:05:04 2021 |
Tega | Summary | PEM | Infrasensing temperature sensor modbus configuration | Anchal mentioned it would be good to put
more details about how I arrived at the values
needed to configure the modbus drive for |
|
|
16761
|
Thu Apr 7 11:47:22 2022 |
Yehonathan | Update | BHD | Initial BHD modeling: AS - LO mode matching |
I begin modeling the initial BHD |
|
|
16766
|
Thu Apr 7 21:15:04 2022 |
Yehonathan | Update | BHD | Initial BHD modeling: AS - LO mode matching | Ok, it turns out these optics were purchased
on purpose, as this elog
shows. Jon considered building a mode-matching |
|
|
16858
|
Mon May 16 16:13:01 2022 |
Yehonathan | Update | BHD | Initial BHD modeling: Damped suspension model | I was finally able to set up a stable suspension
model with the help of Yuta and I'm now
ready to start doing some MICH noise |
|
|
3284
|
Sat Jul 24 13:13:41 2010 |
rana, steve, alberto | Update | General | Initial Crane Inspection reveals flaws: wiring and oil | The guy from KroneCrane (sp?) came today
and started the crane inspection on the X
End Crane. There were issues with our crane |
|
|
3290
|
Mon Jul 26 10:04:24 2010 |
steve | Update | General | Initial Crane Inspection reveals flaws: wiring, oil and imbalance |
|
|
|
360
|
Wed Mar 5 12:51:48 2008 |
John | Summary | LSC | Initial Ligo Arm finesse versus lambda | I've taken the coating recipes for the initial
ligo arm cavity from Rana's web page (ligo.caltech/edu/~rana/mat/)
and plotted the finesse as a function of |
|
|
7599
|
Tue Oct 23 17:30:33 2012 |
jamie, nic, jenne, raji, manasa | Update | Alignment | Initial attempts to fix IFO alignment | We went into the vertex today to see about
fixing the alignment. The in-air access
connector is in place, and we took heavy |
|
|
12080
|
Fri Apr 15 23:11:49 2016 |
gautam | Update | General | Innolight 1W moved to SP table | I
have moved the 1W Innolight + controller
from the PSL table to the SP table for beam |
|
|
2810
|
Mon Apr 19 16:31:42 2010 |
Kevin | Update | PSL | Innolight 2W Laser | Koji and Kevin
We unpacked the Innolight 2W laser,
took an inventory, and scanned the operations |
|
|
2822
|
Tue Apr 20 20:15:37 2010 |
Kevin | Update | PSL | Innolight 2W Output Power vs Injection Current | Koji and Kevin measured the output power
vs injection current for the Innolight 2W
laser. |
|
|
2828
|
Wed Apr 21 21:56:27 2010 |
Kevin | Update | PSL | Innolight 2W Vertical Beam Profile | Koji and Kevin measured the vertical beam
profile of the Innolight 2W laser at one
point. |
|
|
2829
|
Wed Apr 21 22:11:48 2010 |
rana | Update | PSL | Innolight 2W Vertical Beam Profile | Back in Gainesville in 1997, I learned
how to do this using the chopper wheel. |
|
|
2830
|
Wed Apr 21 23:35:37 2010 |
Koji | Update | PSL | Innolight 2W Vertical Beam Profile | Good fit. I assumed sqrt(x) is a typo of
sqrt(2).
|
|