TY - GEN
T1 - Photonuclear physics models, simulations, and experiments for nuclear nonproliferation
AU - Clarke, Shaun
AU - Downar, Thomas
AU - Pozzi, Sara
AU - Flaska, Marek
AU - Mihalczo, John
AU - Padovani, Enrico
AU - Hunt, Alan
N1 - Funding Information:
This research has been in part supported by a Marie Curie Fellowship of the European Community programme IHP under contract number MCFI-2000-01 982.
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:84858475679
SN - 0894480596
SN - 9780894480591
T3 - Joint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007
BT - Joint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007
T2 - Joint International Topical Meeting on Mathematics and Computations and Supercomputing in Nuclear Applications, M and C + SNA 2007
Y2 - 15 April 2007 through 19 April 2007
ER -