scholarly journals Extension of the nuclear reaction model code EMPIRE to actinides' nuclear data evaluation

2007 ◽  
Author(s):  
R. Capote ◽  
M. Sin ◽  
A. Trkov ◽  
M. Herman ◽  
B. V. Carlson ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Nuclear Data ◽  
Reaction Model ◽  
Data Evaluation ◽  
Model Code

EMPIRE: Nuclear Reaction Model Code System for Data Evaluation

2007 ◽  
Vol 108 (12) ◽  
pp. 2655-2715 ◽  
Author(s):  
M. Herman ◽  
R. Capote ◽  
B.V. Carlson ◽  
P. Obložinský ◽  
M. Sin ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Reaction Model ◽  
Data Evaluation ◽  
Code System ◽  
Model Code

scholarly journals New paradigm for nuclear data evaluation

2020 ◽  
Vol 239 ◽  
pp. 11001
Author(s):  
M. Herman ◽  
D.A. Brown ◽  
M.B. Chadwick ◽  
W. Haeck ◽  
T. Kawano ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Error Compensation ◽  
Nuclear Data ◽  
Covariance Matrices ◽  
Data Evaluation ◽  
New Paradigm ◽  
New Approach ◽  
Reaction Data ◽  
Cross Correlations

A new paradigm for nuclear reaction data evaluations is proposed to produce adjusted libraries that take into account integral experiments on the same footing as the differential ones. These evaluations will provide comprehensive covariance matrices including cross-correlations among different materials/reactions that are critical for realistic propagation of data uncertainties to integral quantities. The new approach should also reduce error compensation issues and facilitate updating of the library to account for new or corrected experiments and advances in reaction modeling.

scholarly journals Hydrogen and helium isotope inner radiation belts in the Earth's magnetosphere

1998 ◽  
Vol 16 (8) ◽  
pp. 931-939 ◽  
Author(s):  
G. I. Pugacheva ◽  
W. N. Spjeldvik ◽  
A. A. Gusev ◽  
I. M. Martin ◽  
N. M. Sobolevsky
Keyword(s):  
Nuclear Reaction ◽  
Transport Theory ◽  
Nuclear Reactions ◽  
High Energy ◽  
Reaction Model ◽  
Atmospheric Composition ◽  
Helium Isotope ◽  
Reaction Yield ◽  
Model Code ◽  
Radiation Zone

Abstract. Radial transport theory for inner radiation zone MeV ions has been extended by combining radial diffusive transport and losses due to Coulomb friction with local generation of D, T and 3He ions from nuclear reactions taking place on the inner edge of the inner radiation zone. Based on interactions between high energy trapped protons and upper atmospheric constituents we have included a nuclear reaction yield D, T and 3He flux source that was numerically derived from a nuclear reaction model code originally developed at the Institute of Nuclear Researches in Moscow, Russia. Magnetospheric transport computations have been made covering the L-shell range L=1.0–1.6. The resulting MeV energy D, T and 3He ion flux distributions show a strong influence of the local nuclear source mechanism on the inner zone energetic D, T and 3He ion content.Key words: Atmospheric composition and structure (Thermosphere-composition and chemistry) · Magnetospheric physics (Energetic particles · trapped).

scholarly journals EMPIRE-3.2 Malta modular system for nuclear reaction calculations and nuclear data evaluation Users Manual

2013 ◽  
Author(s):  
Herman M. ◽  
M. Herman ◽  
R. Capote ◽  
M. Sin ◽  
A. Trkov ◽  
...  
Keyword(s):  
Nuclear Reaction ◽  
Nuclear Data ◽  
Data Evaluation ◽  
Modular System

Overview of nuclear reaction models used in nuclear data evaluation

2001 ◽  
Vol 89 (4-5) ◽  
Author(s):  
M. Herman
Keyword(s):  
Nuclear Reaction ◽  
Optical Model ◽  
Nuclear Data ◽  
Data Evaluation ◽  
Quantum Mechanical ◽  
Distorted Wave ◽  
Distorted Wave Born Approximation ◽  
Coupled Channels ◽  
Reaction Models

A brief outline of nuclear reaction mechanisms including the optical model, the Distorted Wave Born Approximation, the Coupled Channels, classical and quantum-mechanical preequilibrium models and the Compound Nucleus is given. The relations among different nuclear reaction and structure models are indicated. The paper is addressed to the users of nuclear data and seeks to explain basic physical concepts and the role of nuclear reaction models in data evaluation.

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