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Monte Carlo studies on neutron interactions in radiobiological experiments

Author

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  • Mehrdad Shahmohammadi Beni
  • Tak Cheong Hau
  • D Krstic
  • D Nikezic
  • K N Yu

Abstract

Monte Carlo method was used to study the characteristics of neutron interactions with cells underneath a water medium layer with varying thickness. The following results were obtained. (1) The fractions of neutron interaction with 1H, 12C, 14N and 16O nuclei in the cell layer were studied. The fraction with 1H increased with increasing medium thickness, while decreased for 12C, 14N and 16O nuclei. The bulges in the interaction fractions with 12C, 14N and 16O nuclei were explained by the resonance spikes in the interaction cross-section data. The interaction fraction decreased in the order: 1H > 16O > 12C > 14N. (2) In general, as the medium thickness increased, the number of “interacting neutrons” which exited the medium and then further interacted with the cell layer increased. (3) The area under the angular distributions for “interacting neutrons” decreased with increasing incident neutron energy. Such results would be useful for deciphering the reasons behind discrepancies among existing results in the literature.

Suggested Citation

  • Mehrdad Shahmohammadi Beni & Tak Cheong Hau & D Krstic & D Nikezic & K N Yu, 2017. "Monte Carlo studies on neutron interactions in radiobiological experiments," PLOS ONE, Public Library of Science, vol. 12(7), pages 1-17, July.
    • Handle: RePEc:plo:pone00:0181281
    DOI: 10.1371/journal.pone.0181281
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    Cited by:

    1. Mehrdad Shahmohammadi Beni & Hiroshi Watabe & Dragana Krstic & Dragoslav Nikezic & Kwan Ngok Yu, 2021. "MCHP (Monte Carlo + Human Phantom): Platform to facilitate teaching nuclear radiation physics," PLOS ONE, Public Library of Science, vol. 16(9), pages 1-10, September.
    2. Mehrdad Shahmohammadi Beni & D Krstic & D Nikezic & K N Yu, 2018. "Monte Carlo studies on photon interactions in radiobiological experiments," PLOS ONE, Public Library of Science, vol. 13(3), pages 1-24, March.

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