Abstract
Great strides were made over the last several years in the development of nuclear-based explosive detection systems (EDS). Charged particle accelerators are playing an important role as the preferred source of interrogating radiation. Thermal neutron analysis, based on thermal neutron capture in nitrogen, is the most mature of the explosive detection techniques. It can employ a 252Cf radioisotope or a deuteron accelerator generating neutrons via (d, D), (d, Be) or even (d, T) reactions combined with a neutron moderator. Fast neutron analysis techniques, based on the (n,n'γ) processes for elemental discrimination, use deuteron accelerators to generate high energy neutrons, ≤, 14 MeV, continuous or pulsed. The role and experience of various accelerators in EDS are discussed.
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