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Unfolding neutron spectra obtained from BS-TLD system using genetic algorithm.

J A L Santos1, E R Silva, T A E Ferreira

  • 1Nuclear Energy Department of Federal University of Pernambuco-DEN/UFPE, Pernambuco, Brazil. jasantos@cnen.gov.br

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|September 12, 2012
PubMed
Summary
This summary is machine-generated.

Characterizing neutron spectra is crucial for accurate radiological assessments. This study uses a genetic algorithm (GA) with TLDs and a BS system to unfold neutron spectra, achieving results aligned with reference data.

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Area of Science:

  • Nuclear Physics and Engineering
  • Radiation Detection and Measurement
  • Artificial Intelligence in Science

Background:

  • Neutron spectrum variability necessitates accurate characterization for reliable radiological quantity determination.
  • Existing spectrometric systems require broad energy coverage and appropriate unfolding processes for effective spectral analysis.

Purpose of the Study:

  • To develop and validate a novel method for characterizing neutron spectra as a function of energy.
  • To assess the efficacy of a genetic algorithm (GA) coupled with a TLD-BS system for neutron spectrum unfolding.

Main Methods:

  • Implementation of a genetic algorithm (GA), a bio-inspired AI technique, for data analysis.
  • Utilizing a combination of thermoluminescent dosimeters (TLDs) embedded in a Bonner sphere (BS) system.
  • Employing a specific matrix for unfolding spectral data obtained from the TLD-BS system.

Main Results:

  • The proposed GA-based unfolding technique successfully characterized neutron spectra across a wide energy range.
  • Results obtained using the GA-TLD-BS system demonstrated strong agreement with established reference spectra.
  • The method proved effective in unfolding complex neutron spectra.

Conclusions:

  • The genetic algorithm provides a robust and accurate method for unfolding neutron spectra.
  • The combination of TLDs within a BS system, analyzed by GA, is a viable approach for neutron spectrometry.
  • This technique enhances the ability to establish precise radiological quantities based on spectral information.