Photonuclear physics models, simulations, and experiments for nuclear nonproliferation

Shaun Clarke, Thomas Downar, Sara Pozzi, Marek Flaska, John Mihalczo, Enrico Padovani, Alan Hunt

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

This work illustrates a methodology based on photon interrogation and coincidence counting for determining the characteristics of fissile material. The feasibility of the proposed methods was demonstrated using the Monte Carlo-based MCNPX/MCNP-PoliMi code system capable of simulating the full statistics of the neutron and photon field generated by the photon interrogation of fissile and non-fissile materials with high-energy photons. These simulations were compared to the prompt time-of-flight data taken at the Idaho Accelerator Center immediately following the photon interrogation of a depleted uranium target. The results agree very well with the measured data for interrogation with 15-MeV endpoint bremsstrahlung photons at two different detector separation distances.

Original languageEnglish (US)
Title of host publicationJoint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007
StatePublished - Dec 3 2007
EventJoint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007 - Monterey, CA, United States
Duration: Apr 15 2007Apr 19 2007

Publication series

NameJoint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007

Other

OtherJoint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007
CountryUnited States
CityMonterey, CA
Period4/15/074/19/07

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Nuclear and High Energy Physics

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    Clarke, S., Downar, T., Pozzi, S., Flaska, M., Mihalczo, J., Padovani, E., & Hunt, A. (2007). Photonuclear physics models, simulations, and experiments for nuclear nonproliferation. In Joint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007 (Joint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007).