MCNPX-PoliMi for nuclear nonproliferation applications

S. A. Pozzi, S. D. Clarke, W. J. Walsh, E. C. Miller, J. L. Dolan, Marek Flaska, B. M. Wieger, A. Enqvist, E. Padovani, J. K. Mattingly, D. L. Chichester, P. Peerani

Research output: Contribution to journalArticle

90 Citations (Scopus)

Abstract

This paper describes the use of the Monte Carlo code MCNPX-PoliMi for nuclear-nonproliferation applications, with particular emphasis on the simulation of spontaneous and neutron-induced nuclear fission. New models for the outgoing neutrons and gamma rays emitted in spontaneous and induced fission are described. For spontaneous fission, the models include prompt neutron energy distributions that depend on the number of neutrons emitted in the individual fission events. For neutron-induced fission, due to lack of data, the prompt neutron energy distributions are independent of the number of neutrons emitted in the individual fission events. Gamma rays are sampled independently of the neutrons. Code validation is performed on well-characterized mixed-oxide fuel and plutonium-oxide samples.

Original languageEnglish (US)
Pages (from-to)119-125
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume694
DOIs
StatePublished - Dec 1 2012

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Neutrons
neutrons
fission
Gamma rays
energy distribution
plutonium oxides
Mixed oxide fuels
gamma rays
Fission reactions
nuclear fission
Plutonium
mixed oxides
rays
Oxides
simulation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Pozzi, S. A. ; Clarke, S. D. ; Walsh, W. J. ; Miller, E. C. ; Dolan, J. L. ; Flaska, Marek ; Wieger, B. M. ; Enqvist, A. ; Padovani, E. ; Mattingly, J. K. ; Chichester, D. L. ; Peerani, P. / MCNPX-PoliMi for nuclear nonproliferation applications. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 2012 ; Vol. 694. pp. 119-125.
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Pozzi, SA, Clarke, SD, Walsh, WJ, Miller, EC, Dolan, JL, Flaska, M, Wieger, BM, Enqvist, A, Padovani, E, Mattingly, JK, Chichester, DL & Peerani, P 2012, 'MCNPX-PoliMi for nuclear nonproliferation applications', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 694, pp. 119-125. https://doi.org/10.1016/j.nima.2012.07.040

MCNPX-PoliMi for nuclear nonproliferation applications. / Pozzi, S. A.; Clarke, S. D.; Walsh, W. J.; Miller, E. C.; Dolan, J. L.; Flaska, Marek; Wieger, B. M.; Enqvist, A.; Padovani, E.; Mattingly, J. K.; Chichester, D. L.; Peerani, P.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 694, 01.12.2012, p. 119-125.

Research output: Contribution to journalArticle

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AU - Pozzi, S. A.

AU - Clarke, S. D.

AU - Walsh, W. J.

AU - Miller, E. C.

AU - Dolan, J. L.

AU - Flaska, Marek

AU - Wieger, B. M.

AU - Enqvist, A.

AU - Padovani, E.

AU - Mattingly, J. K.

AU - Chichester, D. L.

AU - Peerani, P.

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Y1 - 2012/12/1

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AB - This paper describes the use of the Monte Carlo code MCNPX-PoliMi for nuclear-nonproliferation applications, with particular emphasis on the simulation of spontaneous and neutron-induced nuclear fission. New models for the outgoing neutrons and gamma rays emitted in spontaneous and induced fission are described. For spontaneous fission, the models include prompt neutron energy distributions that depend on the number of neutrons emitted in the individual fission events. For neutron-induced fission, due to lack of data, the prompt neutron energy distributions are independent of the number of neutrons emitted in the individual fission events. Gamma rays are sampled independently of the neutrons. Code validation is performed on well-characterized mixed-oxide fuel and plutonium-oxide samples.

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