Accession Number : AD0732286

Title :   The Measurement of Neutron Cross Sections for Production of Isomeric Nuclei Including the Effect of a Non-Uniform Neutron Flux.

Descriptive Note : Research rept.,

Corporate Author : AIR FORCE ACADEMY COLO

Personal Author(s) : Head,James H.

Report Date : AUG 1971

Pagination or Media Count : 29

Abstract : The report presents in detail all the mathematical derivations and results needed to calculate neutron cross sections from experimental data obtained by activation analysis. The report discusses the complexities that arise from the production and detection of isomeric nuclei. Non-uniform neutron fluxes are analyzed by considering a series of short time intervals during which the flux can be considered constant. The report presents general expressions for the metasable and ground state reaction cross sections and concludes by describing several specialized applications of these general results. (Author)

Descriptors :   (*NEUTRON CROSS SECTIONS, MEASUREMENT), (*NEUTRON ACTIVATION, NEUTRON FLUX), ISOMERIC TRANSITIONS, DIFFERENTIAL EQUATIONS, APPROXIMATION(MATHEMATICS), NUMERICAL ANALYSIS

Subject Categories : Test Facilities, Equipment and Methods
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE