| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
5155
|
Tue Aug 9 15:14:46 2011 |
Koji | Update | General | in-vac work plan today | This morning Kiwamu and I have aligned
the MC. Kiwamu aligned the last steering
(on the OMC table) to recover the touch last |
|
|
5163
|
Wed Aug 10 01:40:40 2011 |
Koji | Update | SUS | ETMY exploration | [Rana Koji Jenne Jamie]
- The situation of the ETMY suspension
is improved. |
|
|
5192
|
Thu Aug 11 14:32:12 2011 |
Koji | Summary | SUS | Photosensor Head Calibration Curve for TT Frame | The entry was quite confusing owing to
many misleading wordings.
- The PS2 should be calibrated "as |
|
|
5198
|
Thu Aug 11 18:30:40 2011 |
Koji | Update | SUS | ITMY OSEM adjustment | [Jamie, Koji]
ITMX
OSEMs were adjusted so as to have the right |
|
|
5224
|
Sat Aug 13 19:08:01 2011 |
Koji | Summary | SUS | TT Optimization Curves | What are the parameters you are using?
As you have the drawings of the components,
you can calculate the masses of the objects. |
|
|
5226
|
Sat Aug 13 21:48:17 2011 |
Koji | Summary | SUS | TT Optimization Curves | 1) Drawing has the dimensions => You
can calculate the volume => You can calculate
the mass |
|
|
5336
|
Fri Sep 2 15:56:32 2011 |
Koji | Update | IOO | triple resonant box : ready to install | What are the reflected RF powers for those
frequencies?
Is the 29.5MHz more problem than the |
|
|
5431
|
Fri Sep 16 11:15:12 2011 |
Koji | Update | IOO | PZT1 situation | [Koji Kiwamu]
- We have checked the situation of
the broken Piezo Jenna PZT (called PZT1) |
|
|
5447
|
Sat Sep 17 14:04:45 2011 |
Koji | Update | IOO | PZT1 driver in place | The PZT driver is now in place. The actual PZTs are
not connected yet! |
|
|
5449
|
Sun Sep 18 15:34:09 2011 |
Koji | Update | Adaptive Filtering | Modifications to LSC, RFM models, added OAF model | [Koji Kiwamu]
This
modification of the LSC model made the rows |
|
|
5450
|
Sun Sep 18 15:57:00 2011 |
Koji | Update | IOO | The PZT driver engaged to PZT1 | [Koji Kiwamu]
The
pzt driver for PZT1 has been installed. |
|
|
5451
|
Sun Sep 18 16:42:00 2011 |
Koji | Bureaucracy | Environment | Clean up your mess | Mess in the lab is increasing. Kiwamu and
I had to clean up some stuffs to continue
our work. |
|
|
5473
|
Tue Sep 20 02:21:10 2011 |
Koji | Update | LSC | LSC MEDM screen cleaning up | I have made some cleaning up of the LSC-related
MEDM screens.
- LSC overview screen: ADC OVFL and |
|
|
5481
|
Tue Sep 20 15:39:57 2011 |
Koji | Update | SUS | free swinging test in vacuum condition | Can't we use Yuta's auto-Q adjust script?
http://nodus.ligo.caltech.edu:8080/40m/3723
Edit by KI : |
|
|
5492
|
Tue Sep 20 23:59:53 2011 |
Koji | Summary | LSC | Plan to update the LSC code for multiple lock-ins | DRMI team needs to use at least three lockins
on LSC
Increase the number |
|
|
5498
|
Wed Sep 21 14:28:25 2011 |
Koji | Summary | LSC | The LSC code/screen modification for LSC LOCKINs | The
LSC code has been modified
-
The code was modified, compiled, and installed. |
|
|
5516
|
Thu Sep 22 11:50:37 2011 |
Koji | Update | LSC | Locking status update | Both loops basically have no phase margins.
i.e. unstable. How can you lock PRMI with
these servos? |
|
|
5522
|
Thu Sep 22 18:33:01 2011 |
Koji | Summary | LSC | The LSC screen modification | As per the request of Anamaria, I have
added the slider of the demodulation phase
for each RF PD screens. |
|
|
5528
|
Thu Sep 22 23:18:51 2011 |
Koji | Summary | LSC | The LSC screen modification |
C1LSC_RFPD.adl screen was modified
to have more information. |
|
|
5539
|
Sat Sep 24 17:12:54 2011 |
Koji | Update | LSC | Realignment of REFL / Some 3f PRMI locking / Recycling Gain | [Koji Suresh]
Activity on Friday evening
- |
|
|
5541
|
Sat Sep 24 20:14:36 2011 |
Koji | Update | LSC | Rough estimation of the PR gain |
POXDC (i.e. POY DCout)
PRM misaligned: 70cnt |
|
|
5549
|
Mon Sep 26 17:49:51 2011 |
Koji | Update | PSL | c1psl | [Koji Suresh]
c1psl has got frozen during our ezcaread/write
business. |
|
|
5551
|
Mon Sep 26 20:04:03 2011 |
Koji | Update | PSL | MC lock has been recovered | [Kiwamu Suresh Koji]
Some main parameters of the PSL has
been recovered using Dataviewer and some |
|
|
5559
|
Tue Sep 27 20:02:19 2011 |
Koji | Update | SUS | Watchdog rearmed | I came to the control room and found the
PMC and IMC were unlocked. ==> Relocked
I found the watch dogs of the vertex |
|
|
5584
|
Fri Sep 30 08:40:02 2011 |
Koji | Update | LSC | length fluctuations in MICH and PRCL | Tip-Tilts has almost no isolation up to
3Hz, and isolation of about 0.5 up to 10Hz.
They have vertical resonances at around |
|
|
5591
|
Fri Sep 30 19:12:56 2011 |
Koji | Update | General | prep for poweroutage |
[Koji Jenne]
The lasers were shutdown |
|
|
5592
|
Sat Oct 1 17:47:21 2011 |
Koji | Summary | General | Recovery from the power shutdown | [Steve Koji Kiwamu]
- The storage on linux1 and linux1
itself (with this order) were turned on at |
|
|
5613
|
Tue Oct 4 15:43:10 2011 |
Koji | Update | IOO | closed the shutter before the MC | The shutter before the MC was closed at
3:30 as I started working on the RFAM.
MC REFL (INLOCK): 0.6~0.7 |
|
|
5617
|
Tue Oct 4 19:06:46 2011 |
Koji | Update | IOO | closed the shutter before the MC | Finished the work at 6:30
MC REFL (INLOCK): 0.50-0.52
MC REFL (UNLOCK): 6.9 |
|
|
5628
|
Fri Oct 7 11:45:24 2011 |
Koji | Summary | LSC | POY11 installed, 55MHz PD at POY removed | POY11
PD was installed last night. The lock of
the Y arm was confirmed with the POY11I signal. |
|
|
5629
|
Fri Oct 7 11:53:47 2011 |
Koji | Update | LSC | DRMI locked and some plans | - REFL165 PD to be fixed (shows constant
high voltage at the DC out)
- Make POP22/110 PD |
|
|
5634
|
Fri Oct 7 22:41:05 2011 |
Koji | Configuration | General | Script backup fixed | Script backup regularly runs on
op340m by crontab,
|
|
|
5640
|
Mon Oct 10 00:01:26 2011 |
Koji | Update | LSC | First attempt to estimate mode matching efficiency using interferometer | "^2"s are missing in the second
equation, but the calculation results seem
correct. |
|
|
5644
|
Mon Oct 10 15:41:56 2011 |
Koji | Update | PSL | PMC aligned | [Koji Suresh]
The steering mirrors for PMC were
aligned. The transmission went up from 0.779 |
|
|
5664
|
Thu Oct 13 23:58:38 2011 |
Koji | Update | LSC | fixing REFL165 | I already have reported in
this entry that REFL165 shows too high
DC output which does not depend on the light |
|
|
5671
|
Sat Oct 15 16:42:08 2011 |
Koji | Update | LSC | Testing REFL165 | Test results of new REFL165 (the
first attachment)
- The resonant freq 166.2MHz, |
|
|
5672
|
Sat Oct 15 17:06:20 2011 |
Koji | Update | LSC | Installation REFL165 | REFL165 was installed on the AP table last
night.
Meanwhile I found the DC power level |
|
|
5678
|
Mon Oct 17 11:40:44 2011 |
Koji | Update | LSC | REFL165 removed from the table | REFL165 removed from the table for the
C(V) test |
|
|
5681
|
Mon Oct 17 22:20:42 2011 |
Koji | Update | LSC | REFL165 removed from the table |
|
|
|
5685
|
Tue Oct 18 10:04:41 2011 |
Koji | Update | LSC | REFL165 removed from the table | The original REFL165 had ~50MHz/A dependence
on the DC photocurrent.
The resistr R21, which was 2670 Ohm |
|
|
5703
|
Wed Oct 19 17:21:16 2011 |
Koji | Summary | LSC | Modification on the RFPD interface cards | I have modified all of the three RFPD interface
cards to be enabled permanently.
This |
|
|
5708
|
Thu Oct 20 01:40:33 2011 |
Koji | Summary | SUS | MC2 Misaligned 2:27PM on Wednesday | There looks some activity at around
MC2 on Wednesday afternoon.
It |
|
|
5715
|
Thu Oct 20 18:42:47 2011 |
Koji | Update | Computer Scripts / Programs | Where should the "Update Snapshots" of screens live? | The following directory exists. We can
apply this convention to all of the models.
|
|
|
5745
|
Thu Oct 27 03:32:45 2011 |
Koji | Summary | IOO | RFAM monitor progress | [Suresh, Mirko, Koji]
A cable from the stochmon box to
the cross connect for the EPICS ADCs is installed. |
|
|
5795
|
Thu Nov 3 15:14:22 2011 |
Koji | Update | CDS | CSS/BOY installed on pianosa | How
to run/use CSS/BOY |
|
|
5798
|
Thu Nov 3 17:04:23 2011 |
Koji | Update | Green Locking | SHG temperature (YARM) | Changing the crystal temperature changes
the laser frequency. This will causes the
beat note missing at the vertex. |
|
|
5804
|
Fri Nov 4 00:13:24 2011 |
Koji | Update | LSC | XARM locked with POX11 | XARM lock was achieved by POX11_I
Summary:
- The whitening gains of POX11_I |
|
|
5821
|
Sat Nov 5 14:54:59 2011 |
Koji | Update | ASC | ASS scripts gone | In any case, the daily backup of the scripts
are found in /cvs/cds/caltech/scripts_archive. |
|
|
5851
|
Wed Nov 9 16:29:36 2011 |
Koji | Summary | LSC | Characterization of the Power Recycled Michelson | Difficult to understand.
The mode matching does not change
the recycling gain. It changes the coupling |
|
|
5903
|
Wed Nov 16 02:36:35 2011 |
Koji | Update | elog | restarted | Basically, elog hangs up by the visit of
googlebot.
Googlebot repeatedly tries to obtain |
|