Nuclear Cross Section
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Nuclear Cross Section
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A measure of the probability that the reaction will take place which is
defined by dI = In σ dx where I is the intensity of the
particle beam; n is the number of target nuclei per cubic centimeter of
target; σ is the cross section for the specified process,
expressed in square centimeters; and x is the target thickness in
centimeters. See barn.
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References
This article is based on NASA's Dictionary of Technical Terms for Aerospace Use