Measurement of the Absolute Elastic and Inelastic Differential Neutron Cross Sections for $^{23}$Na between 2 and 4 MeV
ORAL
Abstract
Elastic and inelastic neutron scattering angular distributions for $^{23}$Na sample were measured at the University of Kentucky using the time-of-flight (ToF) technique, between 2 and 4 MeV incident neutron energies.Normalization of yields into scattering cross sections was accomplished by comparison of Na yields to the yields obtained from hydrogen in polyethylene samples via the well-known n-p scattering cross sections.The $^{3}$H(p,n) differential cross sections are used to determine the energy-dependent efficiency of the main detector. Because the efficiency of this detector appears as a ratio in the comparison of scattered yields from different samples, the absolute values of the $^{3}$H(p,n) cross sections are not critical, but their energy dependence is.
*This work is supported by the U.S. DOE contract no. DE-AC07-051D14517.
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Authors
A. Kumar
University of Kentucky, USA
Departments of Chemistry and Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055
Departments of Chemistry and Physics \& Astronomy, University of Kentucky, Lexington, KY 40506
M.T. McEllistrem
University of Kentucky, USA
Departments of Chemistry and Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055
B.P. Crider
University of Kentucky, USA
E.E. Peters
University of Kentucky, USA
F.M. Prados-Estevez
University of Kentucky, USA
A. Chakraborty
University of Kentucky, USA
S.W. Yates
University of Kentucky, USA
Departments of Chemistry and Physics and Astronomy, University of Kentucky, Lexington, KY 40506-0055
University of Kentucky
Departments of Chemistry and Physics \& Astronomy, University of Kentucky, Lexington, KY 40506
