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

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

2011-04-10

arxiv.org/abs/1104.1761v1

Phys.Rev.C83:064616,2011

Physics

Nuclear Physics

Nuclear Experiment

7 pages, 1 figure, 4 tables; 6 pages (cf. Journal-ref for final corrected version)

Scientific paper

10.1103/PhysRevC.83.064616

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.

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