Multiple Image Collection and Synthesis for Personnel Screening
First Claim
Patent Images
1. An apparatus for ascertaining a material feature associated with a subject, the apparatus comprising:
- a first carriage and a second carriage, each carriage including a source including a collimator adapted to produce a pencil beam of penetrating x-ray radiation incident on the subject;
at least one actuator adapted to displace each carriage with respect to the subject in such a manner as to move the pencil beam with respect to the subject in a direction having a vertical component; and
at least one detector for detecting radiation produced by at least one of the sources after backscattering of the radiation by the subject.
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Abstract
An apparatus and method for inspecting personnel or their effects. A first and second carriage each carries a source for producing a beam of penetrating radiation incident on a subject. A positioner provides for synchronized relative motion of each carriage vis-á-vis the subject in a direction having a vertical component. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
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Citations
16 Claims
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1. An apparatus for ascertaining a material feature associated with a subject, the apparatus comprising:
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a first carriage and a second carriage, each carriage including a source including a collimator adapted to produce a pencil beam of penetrating x-ray radiation incident on the subject; at least one actuator adapted to displace each carriage with respect to the subject in such a manner as to move the pencil beam with respect to the subject in a direction having a vertical component; and at least one detector for detecting radiation produced by at least one of the sources after backscattering of the radiation by the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for inspecting a subject comprising:
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moving a first carriage, the first carriage having coupled to it a first source and a collimator adapted to produce a first pencil beam of penetrating radiation incident on the subject, the first carriage moved in such a manner as to scan the first pencil beam of penetrating radiation in a direction having a vertical component; moving a second carriage, the second carriage having coupled to it a second source and a collimator adapted to produce a second pencil beam of penetrating radiation incident on the subject, the second carriage moved in such a manner as to scan the second pencil beam of penetrating radiation in a direction having a vertical component; detecting, with at least one detector, radiation backscattered by the subject; generating detector output signals based on radiation received by the at least one detector; and characterizing the subject on the basis of the detector output signals. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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Specification