mark.barton@LIGO.ORG - posted 14:54, Tuesday 30 July 2013 - last comment - 16:02, Wednesday 31 July 2013(7287)
ETMX OL values, gains and offsets
I measured the ETMX OL values
prettyOSEMgains('H1','ETMX')
M0F1 19894 1.508 -9947
M0F2 29453 1.019 -14727
M0F3 30661 0.978 -15330
M0LF 24512 1.224 -12256
M0RT 24724 1.213 -12362
M0SD 21784 1.377 -10892
R0F1 28922 1.037 -14461
R0F2 23013 1.304 -11507
R0F3 25716 1.167 -12858
R0LF 26662 1.125 -13331
R0RT 24388 1.230 -12194
R0SD 21961 1.366 -10980
L1UL 24267 1.236 -12133
L1LL 26538 1.130 -13269
L1UR 24545 1.222 -12273
L1LR 26259 1.142 -13130
L2UL 17935 1.673 -8967
L2LL 18726 1.602 -9363
L2UR 25124 1.194 -12562
L2LR 25518 1.176 -12759
I entered the gains and offsets into the OSEMINF screens and updated and committed the /opt/rtcds/userapps/release/sus/h1/burtfiles/h1susetmx_safe.snap .
Betsy was concerned about the M0 F1 and SD OL values, which were a bit low (in spec, but rather lower than average). So she swapped out those two and I remeasured those two values only. The new master list is as follows:
M0F1 24018 1.249 -12009 (new)
M0F2 29453 1.019 -14727
M0F3 30661 0.978 -15330
M0LF 24512 1.224 -12256
M0RT 24724 1.213 -12362
M0SD 28519 1.052 -14259 (new)
R0F1 28922 1.037 -14461
R0F2 23013 1.304 -11507
R0F3 25716 1.167 -12858
R0LF 26662 1.125 -13331
R0RT 24388 1.230 -12194
R0SD 21961 1.366 -10980
L1UL 24267 1.236 -12133
L1LL 26538 1.130 -13269
L1UR 24545 1.222 -12273
L1LR 26259 1.142 -13130
L2UL 17935 1.673 -8967
L2LL 18726 1.602 -9363
L2UR 25124 1.194 -12562
L2LR 25518 1.176 -12759
I entered the new values into the OSEMINF screen and redid the safe.snap.
Now with associated serial numbers which are also in ICS:
M0F1 - 643
M0F2 - 486
M0F3 - 414
M0LF - 580
M0RT - 507
M0SD - 563
R0F1 - 426
R0F2 - 497
R0F3 - 504
R0LF - 468
R0RT - 418
R0SD - 434