Solar proton exposure of an ICRU sphere within a complex structure Part I: Combinatorial geometry

John W Wilson; Tony C Slaba; Francis F Badavi; Brandon D Reddell; Amir A Bahadori

doi:10.1016/j.lssr.2016.05.002

Solar proton exposure of an ICRU sphere within a complex structure Part I: Combinatorial geometry

Life Sci Space Res (Amst). 2016 Jun:9:69-76. doi: 10.1016/j.lssr.2016.05.002. Epub 2016 May 24.

Authors

John W Wilson¹, Tony C Slaba², Francis F Badavi¹, Brandon D Reddell³, Amir A Bahadori³

Affiliations

¹ Old Dominion University, Norfolk VA 23529 USA.
² NASA Langley Research Center, Hampton VA 23681-2199 USA. Electronic address: tony.c.slaba@nasa.gov.
³ NASA Johnson Space Center, Houston, TX 77004 USA.

PMID: 27345203
DOI: 10.1016/j.lssr.2016.05.002

Abstract

The 3DHZETRN code, with improved neutron and light ion (Z≤2) transport procedures, was recently developed and compared to Monte Carlo (MC) simulations using simplified spherical geometries. It was shown that 3DHZETRN agrees with the MC codes to the extent they agree with each other. In the present report, the 3DHZETRN code is extended to enable analysis in general combinatorial geometry. A more complex shielding structure with internal parts surrounding a tissue sphere is considered and compared against MC simulations. It is shown that even in the more complex geometry, 3DHZETRN agrees well with the MC codes and maintains a high degree of computational efficiency.

Keywords: HZETRN; Radiation shielding; Radiation transport; Space radiation.

Published by Elsevier Ltd.

MeSH terms

Algorithms
Computer Simulation
Models, Theoretical*
Monte Carlo Method*
Protons*
Radiation Dosage
Radiation Exposure*
Solar Activity*

Substances

Protons