Development of High-Energy BROND Library up to 150 MeV

The main components of the high-energy BROND library for actinides in the range up to 150 MeV are briefly discussed. The coupled-channel optical model has been used to calculate the neutron total, elastic, and reaction cross sections. The parameters of the optical model have been determined on the b...

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Bibliographic Details
Main Authors: Ignatyuk, A V, Gai, E V, Lunev, V P, Shubin, Yu N, Titarenko, N N
Format: Conference Proceeding
Language:English
Subjects:
ANGULAR DISTRIBUTION
CHARGED PARTICLES
COUPLED CHANNEL THEORY
CROSS SECTIONS
FISSION
MEV RANGE
MULTIPLICITY
NEUTRON EMISSION
NEUTRON REACTIONS
NEUTRONS
NUCLEAR DATA COLLECTIONS
NUCLEAR PHYSICS AND RADIATION PHYSICS
OPTICAL MODELS
STATISTICAL MODELS
THORIUM 232
URANIUM 238
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Summary:The main components of the high-energy BROND library for actinides in the range up to 150 MeV are briefly discussed. The coupled-channel optical model has been used to calculate the neutron total, elastic, and reaction cross sections. The parameters of the optical model have been determined on the basis of available experimental data including the recent precise measurements of the total cross sections for 232Th and 238U. Evaluations of fission cross sections, secondary neutron multiplicities and spectra, as well as charged-particle production cross sections are performed in the frame of the statistical model that includes direct, preequilibrium, and equilibrium mechanisms of nuclear reactions. The Kalbach parameterization of angular distributions has been used to describe the double-differential cross sections of emitted neutrons and charged particles in ENDF/B-VI format.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.1944967