BONDI-97: A novel neutron energy spectrum unfolding tool using a genetic algorithm

被引：45
|
作者：
Mukherjee, B [1 ]
机构：
[1] Australian Nucl Sci & Technol Org, Safety Div B55, Menai, NSW 2234, Australia
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1999年 / 432卷 / 2-3期
关键词：
artificial intelligence; Bonner sphere; crossover; evolution theory; fitness; Fredholm integral equation; Genetic Algorithm; neutron fluence; neutron moderator; neutron source; neutron spectrum; nuclear reactor; particle accelerator; response matrix; spectra unfolding;
D O I：
10.1016/S0168-9002(99)00535-5
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The neutron spectrum unfolding procedure using the count rate data obtained from a set of Bonner sphere neutron detectors requires the solution of the Fredholm integral equation of the first kind by using complex mathematical methods. This paper reports a new approach for the unfolding of neutron spectra using the Genetic Algorithm tool BONDI-97 (BOnner sphere Neutron DIfferentiation). The BONDI-97 was used as the input for Genetic Algorithm engine EVOLVER to search for a globally optimised solution vector from a population of randomly generated solutions. This solution vector corresponds to the unfolded neutron energy spectrum. The Genetic Algorithm engine emulates the Darwinian "Survival of the Fittest" strategy, the key ingredient of the "Theory of Evolution". The spectra of Am-241/Be (alpha,n) and Pu-239/Be (alpha,n) neutron sources were unfolded using the BONDI-97 tool. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：305 / 312
页数：8
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