| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
11838
|
Wed Dec 2 15:52:28 2015 |
yutaro | Update | LSC | restoration of POXDC | I disconnected the |
|
|
11839
|
Wed Dec 2 17:14:33 2015 |
yutaro | Update | LSC | Beam on POX11 is possibly not centered well | I checked how POXDC level changes when
the angle of ITMX is varied. ETMX was misaligned.
Then I found that in YAW direction |
|
|
11843
|
Thu Dec 3 10:05:07 2015 |
yutaro | Update | Optical Levers | Calibration of oplevs for ITMX/ETMX | I updated the figures. I think it's
easier to read now. |
|
|
11845
|
Thu Dec 3 19:10:28 2015 |
yutaro | Update | LSC | XARM lock with ITMX actuated and related change on ASS | To avoid the strange kicking of ETMX, I
locked XARM with ITMX actuated instead of
ETMX so that I changed elements of C1LSC_OUTPUT_MTRX; |
|
|
11846
|
Fri Dec 4 10:18:33 2015 |
yutaro | Update | ASS | Offset in the dither loop of XARM vs beam spot shift on ETMX | As I did for YARM (elog
11779), I measured the relation between
offsets added just after the demodulation |
|
|
11847
|
Fri Dec 4 12:33:52 2015 |
yutaro | Update | LSC | Beam on POX11 is possibly not centered well | To focus POX beam on POX11 PD, I added
an iris and a lens before POX11 PD as you
can see in Attachment 1. |
|
|
11850
|
Fri Dec 4 23:02:13 2015 |
yutaro | Update | LSC | Beam on POX11 is possibly not centered well | [yutaro, Koji]
Now, the beam on POX11 PD is well
centered and well focused. |
|
|
11851
|
Sat Dec 5 12:02:25 2015 |
yutaro | HowTo | Cameras | When image capture does not work... | Today image capture did not work again,
though it had worked 3 days before. I also
found that red indicator light on the |
|
|
11853
|
Sat Dec 5 21:57:32 2015 |
yutaro | HowTo | Cameras | When image capture does not work... | I don't know if just running "modprobe"
will work or not, because I didn't try
it... When the same problem happens |
|
|
11855
|
Mon Dec 7 10:40:09 2015 |
yutaro | Update | Computer Scripts / Programs | Added 1 line to UNFREEZE_DITHER.py | I added 1 line to one of the ASS scripts,
UNFREEZE_DITHER.py like this:
L29> ez.cawrite('C1:ASS-'+dof+'_GAIN', |
|
|
11857
|
Mon Dec 7 11:11:25 2015 |
yutaro | Summary | LSC | round trip loss of X arm | On the day before yesterday and in this
morning, I measured loss map of ETMX. I reported
the method I used to change the beam spot |
|
|
11860
|
Mon Dec 7 15:56:35 2015 |
yutaro | Update | LSC | XARM lock with ITMX actuated and related change on ASS | I changed the snapshot file for ASS, /opt/rtcds/caltech/c1/scripts/ASS_DITHER_ON.snap
as follows: |
|
|
11861
|
Tue Dec 8 11:24:45 2015 |
yutaro | Summary | Computer Scripts / Programs | Scripts for loss map measurement | Here I explain usage of my scripts
for loss map measurement. There are 7 script
files in a same directory /opt/rtcds/caltech/c1/scripts/lossmap_scripts. With |
|
|
11864
|
Tue Dec 8 15:57:16 2015 |
yutaro | Summary | LSC | Power recycling gain estimation from arm loss measurement | I estimated power recycling gain with the
results of arm loss measurement.
From elog |
|
|
11870
|
Thu Dec 10 12:33:04 2015 |
yutaro | Update | LSC | strange behavior of ASDC | I did additional tests for the strange
behavior of ASCD. ETMY, ETMX and ITMY were
misaligned so that only light reflected by |
|
|
11871
|
Thu Dec 10 19:53:22 2015 |
yutaro | Update | LSC | strange behavior of ASDC | To check if the strange behavior of ASDC
is caused by SR2/SR3 or not, I did the following
measurement: |
|
|
11872
|
Fri Dec 11 09:35:44 2015 |
yutaro | Update | LSC | Power recycling gain estimation from arm loss measurement | I took PR3 AR reflectivity and calculated
PRG (PR3 is flipped and so AR surface is
inside PRC). |
|
|
11874
|
Fri Dec 11 15:37:50 2015 |
yutaro | Update | LSC | Power recycling gain estimation from arm loss measurement | Attached is the plot of relation between
the average arm round trip loss and
power recycling gain. 2 % loss due to PR3 |
|
|
11875
|
Fri Dec 11 16:16:36 2015 |
yutaro | Update | Optical Levers | Calibration of oplevs for ITMX/ETMX | Based on calibration measurement I have
done (elog
11785, 11831), I |
|