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A detection system and a detection method based on pulsed energetic particles.

A detection system, high-energy particle technology, applied in the exploration of nuclear radiation, material analysis using wave/particle radiation, fuel testing, etc., and can solve problems such as poor public environment

Inactive Publication Date: 2009-08-19
SAGE INNOVATIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0029] Furthermore, the neutron sources used in said known systems include radioactive elements or electric generators with radioactive targets, which is very bad in public environments

Method used

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  • A detection system and a detection method based on pulsed energetic particles.
  • A detection system and a detection method based on pulsed energetic particles.
  • A detection system and a detection method based on pulsed energetic particles.

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Embodiment Construction

[0065] Referring now to the accompanying drawings, figure 1 An identification system 700 according to the invention is described, comprising:

[0066] - a conveyor system 650 for the item to be inspected 600;

[0067] - High energy particle source 500;

[0068] - detection unit 400; and

[0069] - A data processing unit 800 .

[0070] The source 500 produces a powerful stream and high intensity short pulses of energetic particles including neutrons and gamma photons directed towards the item 600 to be inspected.

[0071] The source comprises a particle generator 100 that generates a stream of energetic particles in response to a pulsed power supply unit 200 controlled by a control unit 300 .

[0072] In operation, a high density of short pulses and a powerful stream of high energy particles are generated and directed towards an item 600 located in the inspection zone where the beam collimator 130 is directed.

[0073] Conveyor system 650 may be conventional and is used to...

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Abstract

A detection system, comprises - a particle source (500) for generating a pulsed flux of energetic particles and for directing said flux (140) towards an item (600) to be analyzed, said particles being intended to react with nuclei of material(s) in said item, - a detection unit (400) comprising at least two detector assemblies responsive to particles and / or electromagnetic radiation in respective energy ranges coming from said item and impinging thereon in response to said flux of energetic particles and capable of delivering corresponding time signals, and - a data processing unit (800) connected to the outputs of said detectors, capable of generating a signature from said signals following the application of said pulsed flux to said item, including time-related signal features, and for comparing said signature with stored reference signatures. The present invention also provides a corresponding dection method. Application in particular to airport luggage security clearance, landmine detection, etc.

Description

technical field [0001] The present invention relates to active neutron interrogation technology, and more particularly to a detection system for interrogating and detecting materials or compounds in objects using neutrons and gamma photons. Background technique [0002] The so-called "neutronic interrogation" is currently the only known non-invasive technique that allows the extraction from isolated and sealed objects of markers associated with the chemical elements or compounds contained in the object . [0003] This technology is therefore a significant advance over items such as X-ray machines which can only be distinguished by their shape and material density, and is used in a variety of applications such as the detection of explosives, nuclear material or contraband, such as in items or buildings of anesthetics. [0004] Depending on the practical application, various neutron-based detection techniques have been developed. [0005] Thermal neutron analysis (TNA) has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/204G01N23/222G01V5/00
CPCG01N2223/0745G01N23/222G01N23/204G01N2223/639G01N2223/5055G01N2223/643G01N33/22G01N23/2206G01V5/0033G01V5/00
Inventor P·蔡
Owner SAGE INNOVATIONS
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