| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
787
|
Mon Aug 4 00:37:58 2008 |
Koji | Update | General | Abs. Len. Meas. ~ RF PD at the Y end / Manual frequency scan | [B]Work log on August 2nd[/B]
o Just remind you:
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|
|
788
|
Mon Aug 4 00:56:07 2008 |
Koji | HowTo | General | Abs. Len. Meas. ~ Auto freq scanner with GPIB | [B]Work log on August 3rd - Part1[/B]
o Yesterday I was too much tired of changing |
|
|
789
|
Mon Aug 4 05:23:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Measurement for Y-arm completed | Finally, I have completed the abs length and
g-factor measurements for Y-arm.
[COLOR=green][B]>>>GO FOR THE VENT<<<[/B][/COLOR]
|
|
|
793
|
Mon Aug 4 21:48:24 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Scan for TEM00/01/10 | [B]Work log on August 3rd - Part2[/B]
o I tried to measure the frequency of the |
|
|
794
|
Mon Aug 4 22:31:10 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Simple Test for TEM01/10 split | [B]Work log on August 3rd - Part3[/B]
[B]Question:[/B]
|
|
|
795
|
Tue Aug 5 00:05:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ IFR2023A calibration | [B]Work log on August 4th[/B]
o IFR2023A (Marconi) was calibrated by the |
|
|
796
|
Tue Aug 5 02:39:55 2008 |
Koji | Configuration | General | Abs. Len. Meas. ~ Optical Layout on the AP / PSL table 2008-Aug-05 | Here are the PDF and the PNG of the AP and
PSL table layouts.
After this photo, the squeezing setup at |
|
|
801
|
Wed Aug 6 11:10:34 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM00 scan | [B]Analysis of the data on August 3th ~ Part
1[/B]
|
|
|
802
|
Wed Aug 6 11:43:52 2008 |
Koji | Update | General | Abs. Len. Meas. ~ analysis of the TEM01 scan | [B]Analysis of the data on August 3th ~ Part
2[/B]
|
|
|
838
|
Thu Aug 14 21:52:51 2008 |
Koji | Summary | General | Abs. Len. Meas. ~ summary of my Summer | I have made the summary of the absolute length
measurement.
It is attached here. The file is a bit big |
|
|
1026
|
Sat Oct 4 07:23:42 2008 |
Koji | Metaphysics | Environment | The Gatekeeper | Hi, this is Koji from Japan.
I am afraid that this is a poisonous spider, |
|
|
1717
|
Tue Jul 7 15:08:49 2009 |
Koji | Summary | Photos | 40 high school students visited 40M | Alan and Alberto conducted a tour of 40
high-school students.
It may be the same tour that Rana |
|
|
1753
|
Wed Jul 15 18:22:15 2009 |
Koji | Update | Cameras | Re: GigE Phase Camera |
|
|
|
1789
|
Sat Jul 25 13:34:58 2009 |
Koji | Update | General | Week 5/6 Update |
|
|
|
1790
|
Sat Jul 25 13:49:28 2009 |
Koji | Update | General | Multiply Resonant EOM Update |
|
|
|
1792
|
Sat Jul 25 19:04:01 2009 |
Koji | Update | PSL | Aligning the beam to the Faraday |
|
|
|
1799
|
Mon Jul 27 19:55:19 2009 |
Koji | HowTo | IOO | Lens selection: plano-convex? or bi-convex? | Q. When should we use plano-convex lenses,
and when should we use bi-convex?
As I had the same question from Jenne |
|
|
1801
|
Tue Jul 28 18:32:21 2009 |
Koji | Update | CDS | RCG work | Peter and Koji,
We are constructing a setup for the |
|
|
1813
|
Thu Jul 30 19:55:23 2009 |
Koji | Update | General | Multiply Resonant EOM Update |
|
|
|
1849
|
Thu Aug 6 20:03:10 2009 |
Koji | Update | General | We left two carts near PSL table. | Stephanie and Koji
We left two carts near the PSL table.
We are using them for characterization |
|
|
1902
|
Fri Aug 14 14:19:25 2009 |
Koji | Summary | Computers | nodus rebooted | nodus was rebooted by Alex at Fri Aug 14
13:53. I launched elogd.
cd /export/elog/elog-2.7.5/ |
|
|
2003
|
Fri Sep 25 17:51:51 2009 |
Koji | Update | MOPA | Solved (Re: Total MOPA power is constant, but the NPRO's power has decreased after last night's activities?) | Jenne, Koji
The cause of the decrease was found
and the problem was solved. We found this |
|
|
2008
|
Sun Sep 27 14:45:45 2009 |
Koji | Update | PSL | SLOWscan result | I ran (script dir)/PSL/FSS/SLOWscan on
op440m from 11:30 to 12:30 on 27th. Although
Rana and later I myself set "timed bombs" |
|
|
2009
|
Sun Sep 27 15:25:58 2009 |
Koji | Update | PSL | SLOWscan result | Oh, AMPMON dependence could be an artifact
of the ND filter???
For my case, it should be real dependence |
|
|
2015
|
Mon Sep 28 23:44:18 2009 |
Koji | Omnistructure | SAFETY | Crappy power outlet | Jenne, Koji
Tonight we found that the wireless
for Martian network was down. |
|
|
2017
|
Tue Sep 29 10:44:29 2009 |
Koji | Update | MZ | MZ investigation | Rana, Jenne, Koji
Last night we checked MZ. The apparent
thing we found was the gain slider does not |
|
|
2018
|
Tue Sep 29 12:47:08 2009 |
Koji | Update | MZ | MZ unlocked | 12:45 I started the work on MZ. Thus the
MZ was unlocked.
Found the bad connection on the FLKM |
|
|
2020
|
Tue Sep 29 18:21:41 2009 |
Koji | Update | MZ | MZ work done | The
MZ work completed. I replaced
the bad cross connection terminal. The gain |
|
|
2022
|
Tue Sep 29 21:51:32 2009 |
Koji | Update | MZ | MZ work done : some noise checking | The previous "+15" was Vctrl
= 0.25 [V]. Which was +18 dB.
|
|
|
2023
|
Tue Sep 29 22:51:20 2009 |
Koji | Update | MZ | Possible gain mis-calibration at other places (Re: MZ work done) | Probably there is the same mistake for
the PMC gain slider. Possibly on the FSS
slider, too??? |
|
|
2032
|
Thu Oct 1 09:36:09 2009 |
Koji | Update | MZ | MZ relocked (Re:suspention damping restored and MZ HV stuck) | MZ stayed unlocked. Now It was relocked.
|
|
|
2035
|
Thu Oct 1 13:12:41 2009 |
Koji | Update | MZ | MZ Work from 13:00- | I will investigate the MZ board. I will
unlock MZ (and MC). |
|
|
2038
|
Thu Oct 1 19:04:05 2009 |
Koji | Update | MZ | MZ work done (Re: MZ Work from 13:00-) | MZ work has been done. I did not change
anything on the circuit.
Recently we observed that the MZ |
|
|
2039
|
Thu Oct 1 19:18:24 2009 |
Koji | Update | SUS | all suspensions undamped | Ops. I restored the damping of the suspensions
at around 16:30.
|
|
|
2050
|
Mon Oct 5 10:41:31 2009 |
Koji | Update | PSL | PSL laser accidentally turned off | The PSL output looks smaller than the incident.
Try to FSS Slow actuator adj of -5.6 (nominal),
instead of -3.5. |
|
|
2055
|
Mon Oct 5 19:39:26 2009 |
Koji | Update | PSL | PSL laser accidentally turned off | I set the FSS slow actuator adj to -5.6
at the lunch time. It gave a little help
at that time. Now max of the MC Trans is |
|
|
2060
|
Tue Oct 6 23:39:54 2009 |
Koji | Omnistructure | Environment | RF area is clean! | Awesome.
I propose that anyone who tries to
do this kind of thoroughgoing cleaning should |
|
|
2070
|
Thu Oct 8 20:18:56 2009 |
Koji | Summary | General | Arm cavity loss | Last night (Oct 07), I ran armLoss script
in order to obtain the latest numbers for
the arm cavity loss. |
|
|
2071
|
Thu Oct 8 21:32:59 2009 |
Koji | Summary | General | Recycling cavity loss | I looked at the data of the day before
yesterday (Oct 06) to know how much is the
recycling gain. |
|
|
2082
|
Mon Oct 12 17:27:20 2009 |
Koji | Configuration | SAFETY | Stray beam blocking | Steve, Kiwamu, and Koji
We went through the PSL table to
make sure any strong beam did not hit the |
|
|
2085
|
Mon Oct 12 19:53:44 2009 |
Koji | Configuration | SAFETY | Stray beam blocking | I aligned the EOM and the beam to the PMC.
The beam is still hitting the bottom of the
EOM aperture,
|
|
|
2087
|
Mon Oct 12 20:01:13 2009 |
Koji | Configuration | SAFETY | Stray beam blocking | OK! I saw the optics are redundant and
some of the components are not in a right
place. |
|
|
2103
|
Fri Oct 16 12:40:59 2009 |
Koji | Configuration | General | Some questions | Some questions came arise to me:
A. How the green injection system
should be? How the handing off between 532 |
|
|
2104
|
Fri Oct 16 13:25:18 2009 |
Koji | Summary | LSC | funny timing setup on the LSC | Could be this.
http://ilog.ligo-la.caltech.edu/ilog/pub/ilog.cgi?group=detector&task=view&date_to_view=10/02/2009&anchor_to_scroll_to=2009:10:02:13:33:49-waldman
|
|
|
2113
|
Sun Oct 18 23:02:03 2009 |
Koji | Update | LSC | LSC timing issue | You yourself told me that tdsdata uses
some downconversion from 32k to 16k!
So, how does the downconversion appears |
|
|
2128
|
Wed Oct 21 13:07:54 2009 |
Koji | Update | WIKI-40M Update | PSL Table Diagram wiki entry | http://lhocds.ligo-wa.caltech.edu:8000/40m/PSL_Table_Diagram
Thanks. I love this. Could you also
put the original file that is editable for |
|
|
2135
|
Thu Oct 22 21:58:26 2009 |
Koji | Update | WIKI-40M Update | PSL Table Diagram wiki entry | Diagram. I don't want to say PNG is an
editable format for this purpose...
You have the PPT, PDF or any drawing |
|
|
2147
|
Mon Oct 26 23:14:08 2009 |
Koji | Update | PSL | laser power is down | I adjusted the steerings to the PMC and
gained 7%. Now the MC_TRANS 7.0 has been
recovered. |
|
|
2149
|
Tue Oct 27 15:55:04 2009 |
Koji | Update | General | ISS injection work / HEPA is on | I was working on the ISS excitation to
take TFs.
I used ISS IL excitation, stealing |
|
|
2158
|
Thu Oct 29 13:48:32 2009 |
Koji | Update | PSL | NPRO LTMP lowered 9.5deg | 13:00 Found MC TRANS less than 7.
13:50 Go into the PSL table.
14:20 Work done. Now I am running |
|