Fast neutron scattering near shell closures: Scandium

Technical Report · Sat Aug 01 00:00:00 EDT 1992

DOI:https://doi.org/10.2172/7012008· OSTI ID:7012008

Smith, A B; Guenther, P T

Neutron differential elastic- and inelastic-scattering cross sections are measured from [approx] 1.5 to 10 MeV with sufficient detail to define the energy-averaged behavior of the scattering processes. Neutrons corresponding to excitations of 465 [plus minus] 23, 737 [plus minus] 20, 1017 [plus minus] 34, 1251 [plus minus] 20, 1432 [plus minus] 23 and 1692 [plus minus] 25 keV are observed. It is shown that the observables, including the absorption cross section, are reasonably described with a conventional optical-statistical model having energy-dependent geometric parameters. These energy dependencies are alleviated when the model is extended to include the contributions of the dispersion relationship. The model parameters are conventional, with no indication of anomalous behavior of the neutron interaction with [sup 45]Sc, five nucleons from the doubly closed shell at [sup 40]Ca.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7012008
• Report Number(s): ANL/NDM-125; ON: DE93002090; TRN: 92-038150
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
SCANDIUM 45 TARGET
NEUTRON REACTIONS
CROSS SECTIONS
EXCITATION
NEUTRON DIFFRACTION
NUCLEAR DATA COLLECTIONS
OPTICAL MODELS
SCATTERING
BARYON REACTIONS
COHERENT SCATTERING
DIFFRACTION
ENERGY-LEVEL TRANSITIONS
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
TARGETS
663430* - Nucleon-Induced Reactions & Scattering- (1992-)
663540 - Nuclear Mass Ranges- A=39-58- (1992-)