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Re-evaluation of Neutron-4He Elastic Scattering Data near 20 MeV

By M. Drosg, R. Avalos Ortiz and B. Hoop

Abstract

Measured differential elastic scattering cross sections of 17.71-, 20.97-, and 23.72-MeV neutrons from liquid helium-4 were re-evaluated and corrected for sample size and multiple scattering effects by means of a Monte Carlo technique implemented in a more recent code (MCNPX). Results indicate that earlier corrections via a code, MAGGIE-2, overestimated the size of multiple scattering effects by an order of magnitude. The corrected differential cross sections and Legendre coefficients obtained by least-squares fits are given.Comment: 7 pages, 1 figure, 4 tables; (Erratum: 2 pages, 1 figure, 2 tables) (cf. Journal-refs for published version and Erratum

Topics: Nuclear Experiment
Year: 2012
DOI identifier: 10.1103/PhysRevC.86.049901
OAI identifier: oai:arXiv.org:1104.1761
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