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Entry  Wed Aug 10 00:11:39 2011, jamie, Update, SUS, check of input diagnolization of ETMX after OSEM tweaking ETMX.png
    Reply  Wed Aug 10 07:59:33 2011, steve, Update, SUS, this is too dam nice 
Message ID: 5166     Entry time: Wed Aug 10 07:59:33 2011     In reply to: 5161
Author: steve 
Type: Update 
Category: SUS 
Subject: this is too dam nice 

Quote:

Suresh and I tweaked the OSEM angles in ETMX yesterday.  Last night the ETMs were left free swinging, and today I ran Rana's peakFit scripts on ETMX to check the input diagnolization:

ETMX.png

It's well inverted, but the matrix elements are not great:

       pit       yaw       pos       side      butt
UL    0.3466    0.4685    1.6092    0.3107    1.0428
UR    0.2630   -1.5315    1.7894   -0.0706   -1.1859
LR   -1.7370   -1.5681    0.3908   -0.0964    0.9392
LL   -1.6534    0.4319    0.2106    0.2849   -0.8320
SD    1.0834   -2.6676   -0.9920    1.0000   -0.1101

The magnets are all pretty well centered in the OSEMS, and we worked at rotating the OSEMS such that the bounce mode was minimized.

Rana and Koji are working on ETMY now.  Maybe they'll come up with a better procedure.

 

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