[BLAST_ANAWARE] neutron counters in blast.geom

From: zhangchi (zhangchi@general.lns.mit.edu)
Date: Tue Jun 24 2003 - 10:29:18 EDT


Hi, Aaron and all the neutron fans.

I send this email realizing that the neutron counter position is different
from listed in blast.geom.

given correct geometry, reconstruction is able to calculate the neutron
counter hit position in blast coordinate system and link it with the
"average" vertex of wire chamber track(s) to make a track for neutron,
resolving the scattering angle and velocity. However, this is impossible
before the proper geometry is set up through blast.geom. And without that,
it would be hard pressed anyway to go any further from tdc/adc's.

Just a reminder.

Chi



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