Inspection of bulk cargoes and liquids by the dual energy method

Osipov, S. P.; Usachev, E.Ju; Чахлов, С. В.; Schetinkin, S. A.; Osipov, O. S.

doi:10.1016/j.radphyschem.2020.109133

Cited by 7 publications

(1 citation statement)

References 19 publications

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“…This technology is indeed sensitive to the electronic density, but it is not always able to clarify the nature of the materials. Specific imaging techniques have been developed to enhance the contrast between high-, intermediate-and low-atomic-number elements, such as dual-energy X-ray radiography [1][2][3][4][5], combined fast-neutron and gamma-or X-ray radiography [6], or transmission radiography with spectroscopic detectors [7]. However, despite the constant improvements in imaging techniques, discriminating illicit and benign substances made of light organic elements with similar densities and effective atomic numbers (Z eff ) remains difficult, especially in the case of cargo materials of different compositions overlapped inside the container.…”

Section: Introductionmentioning

confidence: 99%

Sea container inspection with tagged neutrons

Pérot

Carasco

Eléon

et al. 2021

EPJ Nuclear Sci. Technol.

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Neutron inspection of sea-going cargo containers has been widely studied in the past 20 yr to non-intrusively detect terrorist threats, like explosives or Special Nuclear Materials (SNM), and illicit goods, like narcotics or smuggling materials. Fast 14 MeV neutrons are produced by a portable generator with the t(d, n)α fusion reaction, and tagged in both direction and time thanks to the alpha particle detection. This Associated Particle Technique (APT) allows focusing inspection on specific areas of interest in the containers, previously identified as containing suspicious items with X-ray radiographic scanners or radiation portal monitors. We describe the principle of APT for non-nuclear material identification, and for nuclear material detection, then we provide illustrations of the performances for 10 min inspections with significant quantities (kilograms) of explosives, illicit drugs, or SNM, in different cargo cover loads (e.g. metallic, organic, or ceramic matrices).

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