A new approach and computational algorithm for sensitivity/uncertainty analysis for SED and SAD with applications to beryllium integral experiments

Journal Article · Thu Apr 01 04:00:00 EST 1993 · Nuclear Science and Engineering; (United States)

OSTI ID:6766448

Song, P M; Youssef, M Z; Abdou, M A ^[1]

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1. Univ. of California, Los Angeles (United States)

A new approach for treating the sensitivity and uncertainty in the secondary energy distribution (SED) and the secondary angular distribution (SAD) has been developed, and the existing two-dimensional sensitivity/uncertainty analysis code, FORSS, was expanded to incorporate the new approach. The calculational algorithm was applied to the [sup 9]Be(n,2n) cross section to study the effect of the current uncertainties in the SED and SAD of neutrons emitted from this reaction on the prediction accuracy of the tritium production rate from [sup 6]Li(T[sub 6]) and [sup 7]Li(T[sub 7]) in an engineering-oriented fusion integral experiment of the US Department of Energy/Japan Atomic Energy Research Institute Collaborative Program on Fusion Neutronics in which beryllium was used as a neutron multiplier. In addition, the analysis was extended to include the uncertainties in the integrated smooth cross sections of beryllium and other materials that constituted the test assembly used in the experiment. This comprehensive two-dimensional cross-section sensitivity/uncertainty analysis aimed at identifying the sources of discrepancies between calculated and measured values for T[sub 6] and T[sub 7].

• DOE Contract Number: FG03-86ER52124
• OSTI ID: 6766448
• Journal Information: Nuclear Science and Engineering; (United States), Journal Name: Nuclear Science and Engineering; (United States) Vol. 113:4; ISSN NSENAO; ISSN 0029-5639
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700450* -- Fusion Technology-- Blankets & Cooling Systems-- (1992-)
ALGORITHMS
ALKALI METALS
ALKALINE EARTH METALS
ANGULAR DISTRIBUTION
ASIA
BARYON REACTIONS
BERYLLIUM
BERYLLIUM 9 TARGET
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BREEDING BLANKETS
BREEDING RATIO
COMPUTER CODES
CONVERSION RATIO
COOPERATION
CROSS SECTIONS
DATA ANALYSIS
DATA COVARIANCES
DESIGN
DEVELOPED COUNTRIES
DIRECT REACTIONS
DISTRIBUTION
ELEMENTS
EMISSION
ENERGY SPECTRA
F CODES
HADRON REACTIONS
HYDROGEN ISOTOPES
INTERNATIONAL COOPERATION
ISOTOPES
JAPAN
LIGHT NUCLEI
LITHIUM
MATHEMATICAL LOGIC
METALS
MULTIPLICATION FACTORS
NEUTRAL-PARTICLE TRANSPORT
NEUTRON EMISSION
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRON TRANSPORT
NORTH AMERICA
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
ODD-EVEN NUCLEI
QUASI-ELASTIC SCATTERING
QUASI-FREE REACTIONS
RADIATION TRANSPORT
RADIOISOTOPES
REACTOR COMPONENTS
SCATTERING
SPECTRA
TARGETS
THERMONUCLEAR REACTORS
TRITIUM
USA
YEARS LIVING RADIOISOTOPES