BONDI97: A novel neutron energy spectrum unfolding tool using a genetic algorithm
Abstract
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 BONDI97 (BOnner sphere Neutron DIfferentiation). The BONDI97 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 ^{241}Am/ Be (α,n) and ^{239}Pu/ Be (α,n) neutron sources were unfolded using the BONDI97 tool.
 Publication:

Nuclear Instruments and Methods in Physics Research A
 Pub Date:
 August 1999
 DOI:
 10.1016/S01689002(99)005355
 Bibcode:
 1999NIMPA.432..305M