X-Ray Scanner with Partial Energy Discriminating Detector Array
First Claim
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1. A system for screening objects, comprising:
- a) a receptacle for holding an object;
b) a conveyor to move the receptacle through an inspection region;
c) a first X-ray source for transmitting X-rays through the object for generating a vertical X-ray projection view of the said object;
d) a second X-ray source for transmitting X-rays through the object for generating a horizontal X-ray projection view of the said object;
e) a first set and a second set of transmission detectors for receiving the X-rays transmitted through the said object; and
f) a third and a fourth set of energy discriminating detectors for receiving the X-rays transmitted through the said object, wherein said third and fourth set of energy discriminating detectors are positioned such that they align with the object within the receptacle.
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Abstract
The present specification describes a scanning/inspection system configured as a dual-view system using dual-energy sensitive stacked detectors that are partially populated with multi-energy discriminating detectors for overall enhanced energy resolution and therefore improved discrimination of materials through better estimation of material physical properties such as density and effective atomic number.
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Citations
18 Claims
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1. A system for screening objects, comprising:
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a) a receptacle for holding an object; b) a conveyor to move the receptacle through an inspection region; c) a first X-ray source for transmitting X-rays through the object for generating a vertical X-ray projection view of the said object; d) a second X-ray source for transmitting X-rays through the object for generating a horizontal X-ray projection view of the said object; e) a first set and a second set of transmission detectors for receiving the X-rays transmitted through the said object; and f) a third and a fourth set of energy discriminating detectors for receiving the X-rays transmitted through the said object, wherein said third and fourth set of energy discriminating detectors are positioned such that they align with the object within the receptacle. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for screening objects, comprising:
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a) providing a receptacle to hold and align an object; b) moving the said receptacle through an inspection region using a conveyor; c) generating a vertical X-ray projection view of the said object using a first X-ray source; d) generating a horizontal X-ray projection view of the said object using a second X-ray source; e) detecting X-rays transmitted through the said object using a first set and second set of transmission detectors; and f) detecting X-rays transmitted through the said object using a third set and fourth set of energy discriminating detectors which are positioned such that they align with the object within the receptacle. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system for screening objects, comprising:
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a) a receptacle for holding an object; b) a conveyor to move the receptacle through an inspection region; c) an X-ray source for transmitting X-rays through the object for generating an X-ray projection view of the said object; d) a plurality of transmission detectors for receiving the X-rays transmitted through the said object; and e) a plurality of energy discriminating detectors for receiving the X-rays transmitted through the said object, wherein said plurality of energy discriminating detectors are positioned such that they align with the object within the receptacle. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification