DETECTING CONTRABAND BY EMPLOYING INTERACTIVE MULTIPROBE TOMOGRAPHY

摘要

An inspection system for detecting a specific material of interest in packages includes a multi-view X-ray inspection probe (30) and one or more material sensitive probes. The multi-view X-ray inspection probe employs X-rays transmitted through or scattered from an examined item (14A; 14B) to identify a suspicious region (155) inside the item. An interface (110) is used to receive from the X-ray inspection probe X-ray data providing spatial information about the suspicious region and to provide this information to a selected material sensitive probe (140, 275). The material sensitive probe then acquires material specific information about the previously identified suspicious region and provides it to a computer to identify presence of the specific material in the suspicious region. The material sensitive probe may be a directional probe such as a coherent scatter probe, or a non-directional probe such as a Compton scatter probe or an NQR probe.