Natural nickel and $sup 60$Ni neutron elastic and inelastic scattering cross sections from 4.07 to 8.56 MeV
Measured neutron elastic and inelastic scattering cross sections for natural nickel between 4.07 and 8.56 MeV are presented and compared with the elastic differertial cross sections of Holmqvist and Wiedling and with ENDF/B III MAT 1123. The elastic differential cross sections are in general agreemert with those of Holmqvist and Wiedling but our angle-integrated differertial elastic cross sections are systemati cally higher by about 10% than those of Holmqvist and Wiedling above 4.6 MeV, a situation found in comparing the two sets of data for other elements. The ENDF/B II1 MAT 1123 elastic angular distributions are found to be in poor agreement with experimertal results from 4 to 8.5 MeV, though the ENDF/B III MAT 1123 angle-integrated differertial elasti c cross sections agree generally within experimertal uncertairties with our results over this energy range. Additional measurements of /sup 60/Ni neutron elastic and inelastic scattering cross sections at 4.34 and 4.92 MeV are given and compared with previous results from 6 to 8.5 MeV and with natural nickel results. Agreement is shown to be excellent. Inelastic scattering cross sections to the 1.450 MeV level in sup 58/Ni are computed from the natural nickel and /sup 60/Ni data. An evaporation model of inelastic scattering to levels of excitation energy in the residual nucleus below 6 MeV is found to be of questionable validity. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn. (USA)
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-29-017190
- OSTI ID:
- 4331332
- Report Number(s):
- ORNL--4807; ENDF--198
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
*NEUTRON REACTIONS-- INELASTIC SCATTERING
*NICKEL 58-- ENERGY LEVELS
*NICKEL 60-- NEUTRON REACTIONS
*NICKEL-- NEUTRON REACTIONS
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
EXCITATION FUNCTIONS
MEV RANGE 01-10
N68551* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
39 <= A <= 58--Nuclear Reactions & Scattering
N68651 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
59 <= A <= 89--Nuclear Reactions & Scattering
*NICKEL 58-- ENERGY LEVELS
*NICKEL 60-- NEUTRON REACTIONS
*NICKEL-- NEUTRON REACTIONS
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
EXCITATION FUNCTIONS
MEV RANGE 01-10
N68551* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
39 <= A <= 58--Nuclear Reactions & Scattering
N68651 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
59 <= A <= 89--Nuclear Reactions & Scattering