Fast Neutron Spectrum in Lithium with a 14-MeV Neutron Source

A. E. Profio; Gad Shani; G. A. Dissanaike

doi:dx.doi.org/10.13182/NSE81-A20104

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 78 / Number 2

Fast Neutron Spectrum in Lithium with a 14-MeV Neutron Source

A. E. Profio, Gad Shani, G. A. Dissanaike

Nuclear Science and Engineering / Volume 78 / Number 2 / June 1981 / Pages 178-182

Technical Note / dx.doi.org/10.13182/NSE81-A20104

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Measurements of the fast neutron scalar fluxdensity spectrum in a large cylinder of lithium irradiated with 14-MeV neutrons were compared with Monte Carlo calculations using group cross sections from the DLC-37 (EPR) library. The calculations underpredict the penetration, as evidenced by a deficiency of neutrons at depth. The reason may be approximations in the treatment of anisotropic scattering in lithium.