Modeling of gamma ray energy-absorption buildup factors for thermoluminescent dosimetric materials using multilayer perceptron neural network: A comparative study

Nil Kucuk, S.R. Manohara, S.M. Hanagodimath, L. Gerward

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In this work, multilayered perceptron neural networks (MLPNNs) were presented for the computation of the gamma-ray energy absorption buildup factors (BA) of seven thermoluminescent dosimetric (TLD) materials [LiF, BeO, Na2B4O7, CaSO4, Li2B4O7, KMgF3, Ca3(PO4)2] in the energy region 0.015–15MeV, and for penetration depths up to 10 mfp (mean-free-path). The MLPNNs have been trained by a Levenberg–Marquardt learning algorithm. The developed model is in 99% agreement with the ANSI/ANS-6.4.3 standard data set. Furthermore, the model is fast and does not require tremendous computational efforts. The estimated BA data for TLD materials have been given with penetration depth and incident photon energy as comparative to the results of the interpolation method using the Geometrical Progression (G-P) fitting formula.

Original languageEnglish
JournalRadiation Physics and Chemistry
Volume86
Pages (from-to)10-22
ISSN0969-806X
DOIs
Publication statusPublished - 2013

Keywords

  • Buildup factor
  • Gamma-ray
  • Energy absorption
  • Thermoluminescence dosimetry
  • Neural network

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