Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1879743 | Applied Radiation and Isotopes | 2007 | 8 Pages |
Abstract
Fast neutrons produced via D+T reactions and tagged by the associated particle technique have been recently proposed to inspect cargo containers. The general characteristics of this technique are studied with Monte Carlo simulations by determining the properties of the tagged neutron beams as a function of the relevant design parameters (energy and size of the deuteron beam, geometry of the charged particle detector). Results from simulations, validated by experiments, show that the broadening of the correlation between the α-particle and the neutron, induced by kinematical as well as geometrical (beam and detector size) effects, is important and limits the dimension of the minimum voxel to be inspected. Moreover, the effect of the container filling is explored. The material filling produces a sizeable loss of correlation between α-particles and neutrons due to scattering and absorption. Conditions in inspecting cargo containers are discussed.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
S. Pesente, M. Lunardon, G. Nebbia, G. Viesti, D. Sudac, V. Valkovic,