| Autor: |
Pruet, J., Descalle, M.-A., Hall, J., Pohl, B., Prussin, S. G. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 5/1/2005, Vol. 97 Issue 9, p094908, 10p, 2 Diagrams, 1 Chart, 6 Graphs |
| Abstrakt: |
Factors affecting sensing of small quantities of fissionable material in large seagoing cargo containers by neutron interrogation and detection of β-delayed photons are explored. The propagation of variable-energy neutrons in cargos, subsequent fission of hidden nuclear material and production of the β-delayed photons, and the propagation of these photons to an external detector are considered explicitly. Detailed results of Monte Carlo simulations of these stages in representative cargos are presented. Analytical models are developed both as a basis for a quantitative understanding of the interrogation process and as a tool to allow ready extrapolation of our results to cases not specifically considered here. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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