63Cu and 65Cu Neutron Elastic and Inelastic Scattering Cross Sections from 5.50 to 8.50 MeV.
63Cu and 65Cu Neutron Elastic and Inelastic Scattering Cross Sections from 5.50 to 8.50 MeV.

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Published: 1974

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Measured neutron elastic and inelastic scattering cross sections for / sup 63/Cu and 65Cu between 5.50 and 8.50 MeV are presented and compared with elastic data of Holmqvist and Wiedling and with ENDF/B III MAT 1085 and 1086. The elastic differential cross sections are in fair agreement with those of Holmqvist and Wiedling in shape. The angle-integrated differential elastic cross sections are systematically higher by as much as 28% than those of Holmqvist and Wiedling above 5 MeV, a situation similar to that found in comparing the two sets of data for other elements. ENDF/B III MAT 1085 and 1086 angular distributions underestimate the elastic forward peak below 20 deg. when compared with experimental results and display unphysical fluctuations due to the use of a Legendre series of order 20 where order 9 is the highest required by the data. An evaporation model with temperature ranging from 0.8 to 1.05 MeV reasonably describes inelastic scattering to levels in the residual copper nuclei of excitation energy above 3.2 MeV. (auth).

$sup 63$Cu and $sup 65$Cu Neutron Elastic and Inelastic Scattering Cross Sections from 5.50 to 8.50 MeV.
$sup 63$Cu and $sup 65$Cu Neutron Elastic and Inelastic Scattering Cross Sections from 5.50 to 8.50 MeV.

Author:

Publisher:

Published: 1974

Total Pages:

ISBN-13:

DOWNLOAD EBOOK

Measured neutron elastic and inelastic scattering cross sections for / sup 63/Cu and /sup 65/Cu between 5.50 and 8.50 MeV are presented and compared with elastic data of Holmqvist and Wiedling and with ENDF/B III MAT 1085 and 1086. The elastic differential cross sections are in fair agreement with those of Holmqvist and Wiedling in shape. The angle-integrated differential elastic cross sections are systematically higher by as much as 28% than those of Holmqvist and Wiedling above 5 MeV, a situation similar to that found in comparing the two sets of data for other elements. ENDF/B III MAT 1085 and 1086 angular distributions underestimate the elastic forward peak below 20 deg. when compared with experimental results and display unphysical fluctuations due to the use of a Legendre series of order 20 where order 9 is the highest required by the data. An evaporation model with temperature ranging from 0.8 to 1.05 MeV reasonably describes inelastic scattering to levels in the residual copper nuclei of excitation energy above 3.2 MeV. (auth).