SYSTEM AND METHOD FOR DETECTION USING HIGH-ENERGY PARTICLE BEAMS Russian patent published in 2011 - IPC G01N23/222 

FIELD: physics.

SUBSTANCE: detection system has a particle source (500) for generating a pulsed stream (140) of high-energy particles which includes neutrons and gamma-ray photons, and said stream is directed to the investigated object (600), where particles interact nuclei of atoms of the material(s) of the said object, a detector unit (400), having at least three detectors (411, 421, 431; 412, 422, 432; 413, 423, 433) which react to neutrons and gamma-ray photons in corresponding energy ranges coming from the object and incident on the detectors in response to the said stream of high-energy particles, where the detectors can operate in current detection mode in order to generate current signals representing gamma-ray photons and neutrons incident on the detectors with time, and a data processing unit (800) connected to outputs of detectors, which are adapted to form a distinctive characteristic from said signals obtained after directing the pulsed stream onto the object, including signal parameters which depend on time, and with possibility of comparing said characteristics with stored reference characteristics.

EFFECT: high efficiency of detecting common contraband as well as nuclear materials.

20 cl, 3 dwg