$sup 63$Cu and $sup 65$Cu neutron elastic and inelastic scattering cross sections from 5.50 to 8.50 MeV
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)
- Research Organization:
- Oak Ridge National Lab., Tenn. (USA)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-29-025568
- OSTI ID:
- 4327118
- Report Number(s):
- ORNL--4908
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*COPPER 65-- NEUTRON REACTIONS
*NEUTRON REACTIONS-- INELASTIC SCATTERING
ANGULAR DISTRIBUTION
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
EVAPORATION MODEL
MEV RANGE 01-10
N68651* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
59 <= A <= 89--Nuclear Reactions & Scattering