Monte Carlo calculation of buildup factors for 50 keV-15 MeV photons in tungsten up to 15 mean free paths.

Exposure buildup factor values of tungsten for a point isotropic source in energy range 0.05-15 MeV up to 15 mfp are computed using Monte Carlo N-Particle code. Buildup factors of this study and ANSI/ANS-6.4.3 at some selected energies and penetration depths are compared. Highest discrepancies are observed for high-energy and/or high penetration depths. Highest error occurs at 15 MeV, amounting to 32%. In the energy range 2-6 MeV, our results show smaller values for all penetration depths and vice versa at higher energies. Copyright © 2022 Elsevier Ltd. All rights reserved.

Citation

Dariush Sardari, Samaneh Baradaran, Farshid Babapour Mofrad, Nazanin Marzban. Monte Carlo calculation of buildup factors for 50 keV-15 MeV photons in tungsten up to 15 mean free paths. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine. 2022 May;183:110150

PMID: 35231848

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