Isotopic Cross Sections for Production of Gamma Rays Created by Neutron Interactions with {sup 11}B for E{sub n} Between 2 and 22 MeV: Tabulated Data

Larson, DC

Oak Ridge National Laboratory

关键词: Boron 10;    Boron 11;    Doppler Broadening;    Gamma Detection;    Multiple Scattering;   

DOI  :  10.2172/777775
RP-ID  :  ORNL/TM-13490
RP-ID  :  AC05-96OR22464
RP-ID  :  777775

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来源: UNT Digital Library

【 摘 要 】

Inelastic and nonelastic neutron interactions with {sup 11}B have been studied for incident neutron energies between 2 and 22 MeV. Neutrons from the Oak Ridge Electron Linear Accelerator (ORELA) impinged a sample of natural boron. Gamma rays resulting from neutron interactions were detected using a well-calibrated intrinsic-Ge detection system. Data reduction included compensation for Doppler broadening of the observed peaks and corrections due to incident neutron attenuation, effects due to multiple scattering of neutrons, and sample attenuation of the outgoing gamma rays. Cross sections for gamma rays having energies (in keV) of 2124, 4445, 4741, 5020, 6434, 6743+6793 (combined), and 7286 following inelastic scattering, of 478 keV from the {sup 11}B(n,n{alpha}{gamma}){sup 7}Li reaction, and of 718 keV from the {sup 11}B(n,2n{gamma}){sup 10}B reaction as functions of incident neutron energy are presented in tabular form.