Application of nuclear models. [1 to 40 MeV, review]

Conference · Mon Jan 01 00:00:00 EST 1979

OSTI ID:5752405

Young, P G; Arthur, E D; Madland, D G

The development of extensive experimental nuclear data base over the past three decades has been accompanied by parallel advancement of nuclear theory and models used to describe and interpret the measurements. This theoretical capability is important because of many nuclear data requirements that are still difficult, impractical, or even impossible to meet with present experimental techniques. Examples of such data needs are neutron cross sections for unstable fission products, which are required for neutron absorption corrections in reactor calculations; cross sections for transactinide nuclei that control production of long-lived nuclear wastes; and the extensive dosimetry, activation, and neutronic data requirements to 40 MeV that must accompany development of the Fusion Materials Irradation Test (FMIT) facility. In recent years systematic improvements have been made in the nuclear models and codes used in data evaluation and, most importantly, in the methods used to derive physically based parameters for model calculations. The newly issued ENDF/B-V evaluated data library relies in many cases on nuclear reaction theory based on compound-nucleus Hauser-Feshbach, preequilibrium and direct reaction mechanisms as well as spherical and deformed optical-model theories. The development and applications of nuclear models for data evaluation are discussed with emphasis on the 1 to 40 MeV neutron energy range.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 5752405
• Report Number(s): LA-UR-79-2862; CONF-791058-15; TRN: 80-000446
• Resource Relation: Conference: International conference on nuclear cross sections for technology, Knoxville, TN, USA, 22 Oct 1979
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
NUCLEAR DATA COLLECTIONS
EVALUATION
NUCLEAR MODELS
NUCLEAR REACTIONS
COMPOUND-NUCLEUS REACTIONS
COMPUTER CODES
CROSS SECTIONS
DATA
DEFORMED NUCLEI
DIRECT REACTIONS
FUSION REACTIONS
HAUSER-FESHBACH THEORY
MEV RANGE 01-10
MEV RANGE 10-100
NEUTRON REACTIONS
NUCLEAR REACTION KINETICS
PRECOMPOUND-NUCLEUS EMISSION
R MATRIX
REVIEWS
SPHERICAL CONFIGURATION
BARYON REACTIONS
CONFIGURATION
DOCUMENT TYPES
ENERGY RANGE
HADRON REACTIONS
INFORMATION
KINETICS
MATHEMATICAL MODELS
MATRICES
MEV RANGE
NUCLEAR THEORY
NUCLEI
NUCLEON REACTIONS
REACTION KINETICS
653003* - Nuclear Theory- Nuclear Reactions & Scattering