Elastic Neutron Scattering from B, C, K, and Ca at 14.0 MeV

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Abstract
Differential cross sections of 14.0-MeV neutrons scattered elastically from B, C, K, and Ca have been measured with the Ohio University time-of-flight spectrometer. The associated-particle technique was used. A time resolution of 1.3 nsec was sufficient to guarantee discrimination against inelastic events at a flight path of 1.68 m. The data were corrected for finite geometry and double scattering. An automatic sixparameter search routine was used to calculate an optical-model fit to the data. Improved fits were obtained for the B, C, and Ca distributions. Results for the previously unmeasured K differential cross section are presented.