The performance criteria for active interrogation systems in Homeland Security applications are describe in this standard. These systems are intended for non-intrusive inspection of closed containers, vehicles, and packages of a wide range of types and sizes. In these systems, the contents of an inspection zone are irradiated with penetrating ionizing radiation to determine the presence of a hidden substance of interest by the analysis of stimulated secondary radiations or nuclear resonance absorption spectra that are indicative of the chemical and/or nuclidic composition of the substance of interest.
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