Comparison of the transport codes HZETRN,HETC and FLUKA for galactic cosmic rays |
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| Authors: | John H Heinbockel Tony C Slaba Ram K Tripathi Steve R Blattnig John W Norbury Francis F Badavi Lawrence W Townsend Thomas Handler Tony A Gabriel Lawrence S Pinsky Brandon Reddell Aric R Aumann |
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| Institution: | 1. Department of Mathematics and Statistics, Old Dominion University, 5115 Hampton Blvd., Norfolk, VA 23529, USA;2. NASA Langley Research Center, Mail Stop 188E, Hampton, VA 23681, USA;3. Christopher Newport University, Newport News, VA 23606, USA;4. Department of Nuclear Engineering, University of Tennessee, 211 Pasqua Engineering Building, Knoxville, TN 37996, USA;5. Department of Physics, University of Tennessee, Knoxville, TN 37996, USA;6. Scientific Investigation and Development (SID), 9608 West Lyttleton Lane, Knoxville, TN 37922, USA;g Physics Department, University of Houston, 1 Main Street, Houston, TX 77002, USA;h Analytical Services and Materials, Hampton, VA 23666, USA |
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| Abstract: | The HZETRN deterministic radiation code is one of several tools developed to analyze the effects of harmful galactic cosmic rays (GCR) and solar particle events on mission planning and shielding for astronauts and instrumentation. This paper is a comparison study involving the two Monte Carlo transport codes, HETC–HEDS and FLUKA and the deterministic transport code, HZETRN. Each code is used to transport an ion from the 1977 solar minimum GCR spectrum impinging upon a 20 g/cm2 aluminum slab followed by a 30 g/cm2 water slab. This research is part of a systematic effort of verification and validation to quantify the accuracy of HZETRN and determine areas where it can be improved. Comparisons of dose and dose equivalent values at various depths in the water slab are presented in this report. This is followed by a comparison of the proton and forward, backward and total neutron flux at various depths in the water slab. Comparisons of the secondary light ion 2H, 3H, 3He and 4He fluxes are also examined. |
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| Keywords: | Space radiation Transport codes Galactic cosmic ray |
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