Multiple image collection and synthesis for personnel screening
First Claim
Patent Images
1. An imaging apparatus for detecting a concealed object carried on a stationary human body comprising:
- a first module comprising a first X-ray source for producing a first pencil beam of X-rays directed toward said human body and a first detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by the first X-ray source, said first detector assembly being disposed on a same side of said human body as said first X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said first X-ray source and a portion of transmitted X-rays from a second module;
the second module comprising a second X-ray source for producing a second pencil beam of X-rays directed toward said human body and a second detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by said second X-ray source, said second detector assembly being disposed on a same side of said human body as said second X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said second X-ray source and a portion of transmitted X-rays from the first module;
a processor for processing detector signals generated from said first detector assembly and said second detector assembly to form at least one image; and
a controller for causing the first module or the second module to move vertically while said human body remains stationary.
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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 given subject. A positioner provides for relative motion of each beam vis-à-vis the subject in a motion, the vertical component of which is one-way. A detector receives radiation produced by at least one of the sources after the radiation interacts with the subject.
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Citations
17 Claims
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1. An imaging apparatus for detecting a concealed object carried on a stationary human body comprising:
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a first module comprising a first X-ray source for producing a first pencil beam of X-rays directed toward said human body and a first detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by the first X-ray source, said first detector assembly being disposed on a same side of said human body as said first X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said first X-ray source and a portion of transmitted X-rays from a second module; the second module comprising a second X-ray source for producing a second pencil beam of X-rays directed toward said human body and a second detector assembly providing a signal representative of the intensity of the X-rays scattered from said human body as a result of being scanned by said second X-ray source, said second detector assembly being disposed on a same side of said human body as said second X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said second X-ray source and a portion of transmitted X-rays from the first module; a processor for processing detector signals generated from said first detector assembly and said second detector assembly to form at least one image; and a controller for causing the first module or the second module to move vertically while said human body remains stationary. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An imaging apparatus for detecting a concealed object carried on a stationary human body comprising:
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a first module comprising a first X-ray source and a first detector assembly, said first detector assembly being disposed on a same side of said human body as said first X-ray source and having an active area for receiving a portion of X-rays scattered from said human body as a result of being scanned by said first X-ray source and a portion of transmitted X-rays from a second module; the second module comprising a second X-ray source and a second detector assembly, said second detector assembly being disposed on a same side of said human body as said second X-ray source and having an active area for receiving a portion of said scattered X-rays from said human body as a result of being scanned by said second X-ray source and a portion of transmitted X-rays from the first module, wherein said first and second modules are parallel to each other; and a processor for processing detector signals generated from said first detector assembly and said second detector assembly to form at least one image, wherein said processor is adapted to process signals representative of the intensity of the X-rays scattered from said human body as a result of being scanned by the first X-ray source from the first detector assembly and signals representative of the intensity of the X-rays scattered from said human body as a result of being scanned by the second X-ray source from the second detector assembly to generate the at least one image; and a controller for causing the first module or the second module to move vertically while said human body remains stationary. - View Dependent Claims (15, 16, 17)
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Specification