Radiographic equipment

A technology of radiography and equipment, applied in the exploration of nuclear radiation, material analysis using radiation, material analysis using wave/particle radiation, etc. complex problems, to achieve a good distinction
CN101128731AInactive Publication Date: 2008-02-20COMMONWEALTH SCI & IND RES ORG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
COMMONWEALTH SCI & IND RES ORG
Publication Date
2008-02-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention concerns radiographic equipment for forming an image of an interior of an object. The equipment comprises a source of X-ray or gamma-ray radiation having two or more energies and operable to irradiate an object to be scanned and a radiation source producing neutrons operable to irradiate the object. The equipment also comprises a radiation detector array having a plurality of pixels, each sensitive to and arranged with respect to the X-ray or gamma-ray radiation source and the neutron producing radiation source and operable to measure the intensity of each type of radiation transmitted through the object; means to process the intensity of each type of radiation, to determine the attenuation of each type of radiation having passed through the object, and to form an image indicative of the shape and composition of the object's interior.
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Description

technical field

[0001] The present invention relates to radiographic apparatus and methods for forming images of the interior of an object. In particular, the present invention relates to radiographic equipment for detecting concealed objects, substances and materials such as in aircraft luggage, parcels and the like. Background technique

[0002] In 1895, X-ray radiography was first demonstrated by Röntgen, in which the attenuation of X-rays is measured between a source located on one side of the object to be inspected and a fluorescent screen or detector on the opposite side. Images can be readily obtained, representing the size and shape of objects within a suitcase or containment. X-ray images can be easily obtained with good spatial resolution, representing fine details of the scanned object. However, the composition of these objects cannot be determined using a single X-ray energy.

[0003] Efficient and well-known improvements include the acquisition of two separat...

Claims

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