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Home / Publications / Journals / Nuclear Science and Engineering / Volume 72 / Number 3

Maximum Density and Capture Rate of Neutrons Moderated from a Pulsed Source

G. C. Baldwin, J. C. Solem

Nuclear Science and Engineering / Volume 72 / Number 3 / December 1979 / Pages 281-289

Technical Paper / dx.doi.org/10.13182/NSE79-A20384

We show that upper bounds exist on the density of neutrons that can be moderated to a specified energy from an intense pulsed source of fast neutrons. Expressions are derived for the maximum density in the following cases: (a) a uniform infection of fast neutrons into an infinite moderator, (b) a localized central source in a finite heavy atom moderator, and (c) a point source in an infinite hydrogenous moderator. Correspondingly, upper bounds are given for the rates of single- and multiple-resonance neutron capture.

 
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