[G14_run] Eloss values for g14

Dr. A.M. Sandorfi sandorfi at jlab.org
Wed Apr 2 11:23:00 EDT 2014


Folks,

Regarding ELOSS, the Tech Note (HDice_TN22) that I put together for Eugene
can be downloaded from:
<http://www.jlab.org/Hall-B/HDIce/technotes/HDice_TN22_IBC_dEdx.pdf> .

The Appendix at the end gives examples of explicit energy loss evaluations
for pions and protons (a) near the low end of their acceptance (25 MeV for
pions and 65 MeV for protons) and (b) at 1 GeV (~ minimizing ionizing for
both). These were calculated for lab angles of 90 degrees where the material
thicknesses are their least. The calculations assume events originate at the
center of the target. As an extreme case, the Eloss from events coming from
the outer edge of the HD nearest the detector would be down by the entries
in the first two rows of the tables. There is no way a pion can loose less
than 4.6 MeV by the time it exits the IBC and gets to the Start Counter.

Andy
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