X-ray Tomographic Inspection System for the Identification of Specific Target Items
First Claim
1. A method for identifying objects in a container, comprising:
- performing a first stage screening, comprising;
arranging a stationary X-ray source to generate X-rays from a plurality of X-ray source positions around a scanning region, arranging a first set of detectors to detect X-rays transmitted through the scanning region, and arranging a second set of detectors to detect X-rays scattered within the scanning region;
processing data output from the first set of detectors using at least one processor to generate at least one tomographic image;
processing data output from the second set of detectors to generate scatter image data; and
,performing a second stage screening comprising at least one of a NQR-based screening process, X-ray diffraction based screening process, X-ray backscatter based screening process, or trace detection based screening process.
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Abstract
The present invention provides for an improved scanning process with a stationary X-ray source arranged to generate X-rays from a plurality of X-ray source positions around a scanning region, a first set of detectors arranged to detect X-rays transmitted through the scanning region, and at least one processor arranged to process outputs from the first set of detectors to generate tomographic image data. The X-ray screening system is used in combination with other screening technologies, such as NQR-based screening, X-ray diffraction based screening, X-ray back-scatter based screening, or Trace Detection based screening.
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Citations
20 Claims
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1. A method for identifying objects in a container, comprising:
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performing a first stage screening, comprising;
arranging a stationary X-ray source to generate X-rays from a plurality of X-ray source positions around a scanning region, arranging a first set of detectors to detect X-rays transmitted through the scanning region, and arranging a second set of detectors to detect X-rays scattered within the scanning region;processing data output from the first set of detectors using at least one processor to generate at least one tomographic image; processing data output from the second set of detectors to generate scatter image data; and
,performing a second stage screening comprising at least one of a NQR-based screening process, X-ray diffraction based screening process, X-ray backscatter based screening process, or trace detection based screening process. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for identifying objects in a container, comprising:
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performing a first stage screening comprising;
arranging a stationary X-ray source to generate X-rays from a plurality of X-ray source positions around a scanning region;
arranging a first set of detectors to detect X-rays transmitted through the scanning region;processing data output from the first set of detectors to generate at least one tomographic image, using at least one processor; and conveying said container from a first stage screening area to a second stage screening area, wherein the second stage screening comprises at least one of a NQR-based screening process, X-ray diffraction based screening process, X-ray back-scatter based screening process, or trace detection based screening process. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification