Total Monte Carlo evaluation for dose calculations.

Autor: Sjöstrand H; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden henrik.sjostrand@physics.uu.se., Alhassan E; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Conroy S; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Duan J; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Hellesen C; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Pomp S; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Österlund M; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden., Koning A; Division of Applied Nuclear Physics, Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden Nuclear Research and consultancy Group (NRG), P.O. Box 25, 3 Westerduinweg, 1755 ZG Petten, The Netherlands., Rochman D; Nuclear Research and consultancy Group (NRG), P.O. Box 25, 3 Westerduinweg, 1755 ZG Petten, The Netherlands.
Jazyk: angličtina
Zdroj: Radiation protection dosimetry [Radiat Prot Dosimetry] 2014 Oct; Vol. 161 (1-4), pp. 312-5. Date of Electronic Publication: 2013 Nov 24.
DOI: 10.1093/rpd/nct296
Abstrakt: Total Monte Carlo (TMC) is a method to propagate nuclear data (ND) uncertainties in transport codes, by using a large set of ND files, which covers the ND uncertainty. The transport code is run multiple times, each time with a unique ND file, and the result is a distribution of the investigated parameter, e.g. dose, where the width of the distribution is interpreted as the uncertainty due to ND. Until recently, this was computer intensive, but with a new development, fast TMC, more applications are accessible. The aim of this work is to test the fast TMC methodology on a dosimetry application and to propagate the (56)Fe uncertainties on the predictions of the dose outside a proposed 14-MeV neutron facility. The uncertainty was found to be 4.2 %. This can be considered small; however, this cannot be generalised to all dosimetry applications and so ND uncertainties should routinely be included in most dosimetry modelling.
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Databáze: MEDLINE