Neutron scattering from elemental indium, the optical model, and the bound-state potential

Technical Report · Fri Jun 01 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/6746540· OSTI ID:6746540

Chiba, S ^[1]; Guenther, P T; Lawson, R D; Smith, A B ^[2]

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1. Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)
2. Argonne National Lab., IL (USA)

Neutron differential elastic-scattering cross sections of elemental indium are measured from 4.5 to 10 MeV at incident-energy intervals of {approx}500 keV. Seventy or more differential values are obtained at each incident energy, distributed between {approx}18{degree} and 160{degree}. These experimental results are combined with lower-energy values previously obtained at this laboratory, and with 11 and 14 MeV results in the literature, to form a comprehensive elastic-scattering database extending from {approx}1.5 to 14 MeV. These data are interpreted in terms of a conventional spherical optical model. The resulting potential is extrapolated to the bound-state regime. It is shown that in the middle of the 50--82 neutron shell, the potential derived from the scattering results adequately describes the binding energies of article states, but does not do well for hole states. The latter shortcoming is attributed to the holes states having occupational probabilities sufficiently different from unity, so that the exclusion principle become a factor, and to the rearrangement of the neutron core. 68 refs.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: DOE/ER
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 6746540
• Report Number(s): ANL/NDM-116; ON: DE90014222; TRN: 90-027776
• Resource Relation: Related Information: Nuclear data and measurements series
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
INDIUM ISOTOPES
NEUTRON REACTIONS
BINDING ENERGY
BOUND STATE
CROSS SECTIONS
ELASTIC SCATTERING
MEV RANGE 01-10
MEV RANGE 10-100
NUCLEAR DATA COLLECTIONS
OPTICAL MODELS
BARYON REACTIONS
ENERGY
ENERGY RANGE
HADRON REACTIONS
ISOTOPES
MEV RANGE
NUCLEAR REACTIONS
NUCLEON REACTIONS
SCATTERING
651720* - Nuclear Properties & Reactions
A=90-149
Experimental