Re: [Brahms-dev-l] Acceptance

From: flemming videbaek <videbaek@rcf.rhic.bnl.gov>
Date: Wed Dec 17 2003 - 12:06:49 EST
Hi

what comes back to haunt us here is that the geometry used by brag
does not come directly or inderectely from the DB geometry. Following the
run there was a large effort to ensure the panels had correct position in
the
geometry database - but this has not been propagated to brag.

It should not be a surprise to anyone that the tofw configuration was
different
in run-3 than in run-3. See e.g. Dana's presentation from the Dec02
collaboration meeting
http://www.sdcc.bnl.gov/brahms/private/meetings/Dec2002/index.html

Briefly:
Run-1  4 panels:
Run-2  6 panels  1-125 slat no
run-3 and agian 5 panels (moved ~ 1/2 panel width) slat 21-125

Thus a slat 21 in run2 is NOT at the same place as run-3


----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106


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Received on Wed Dec 17 12:00:18 2003

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