Personnel screening system
First Claim
1. An inspection system for detecting objects being carried by a stationary person comprising:
- a first detection system configured to detect radiation scattered from said person, wherein said first detection system is configured to generate electronic signals responsive to the detected radiation;
a second detection system configured to detect radiation scattered from said person, wherein said second detection system is configured to generate electronic signals responsive to the detected radiation;
an X-ray source positioned in an enclosure between said first detection system and said second detection system, wherein said X-ray source is coupled to a beam chopper, having a diameter, and configured to emit an X-ray beam through a space between said first detection system and said second detection system, wherein said space is defined by a width ranging from ½
to 2 times the diameter of the beam chopper; and
a processing system for analyzing the electronic signals generated by the first detection system and the second detection system and for generating an image on a display, wherein the enclosure comprisesa first side defined by a planar surface having an exterior surface facing the person and an interior surface, wherein the first side is configured to receive the radiation scattered from the person;
a second side in an acute angular relationship with said first side, wherein said second side is defined by a planar surface having an interior surface adapted to receive radiation passing through the first side and wherein said second side is configured to only receive radiation after it passes through said first side;
a first substrate positioned on the interior surface of the first side, wherein the first substrate further comprises an active area for receiving and converting said radiation into light;
a second substrate positioned on the interior surface of the second side, wherein the second substrate further comprises an active area for receiving and converting said radiation into light; and
at least one photodetector having a light responsive area and a non-light responsive area, wherein the light responsive area is positioned to receive the light emitted from the first substrate and the second substrate.
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Accused Products
Abstract
Further, the present specification is directed towards personnel screening systems comprising modular components, including detector and source units, where a dual axis scanning beam is employed. In one configuration, the subject under inspection remains stationary and is positioned between two scanning modules. The X-ray source assembly is designed to minimize the overall system footprint while still yielding the requisite field of view, low radiation exposure level, and required resolution. The modular components allow for a compact, light and yet sufficiently rugged overall structure that can be disassembled for ease of transportation and is also simple to reassemble at a required site for inspection.
17 Citations
36 Claims
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1. An inspection system for detecting objects being carried by a stationary person comprising:
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a first detection system configured to detect radiation scattered from said person, wherein said first detection system is configured to generate electronic signals responsive to the detected radiation; a second detection system configured to detect radiation scattered from said person, wherein said second detection system is configured to generate electronic signals responsive to the detected radiation; an X-ray source positioned in an enclosure between said first detection system and said second detection system, wherein said X-ray source is coupled to a beam chopper, having a diameter, and configured to emit an X-ray beam through a space between said first detection system and said second detection system, wherein said space is defined by a width ranging from ½
to 2 times the diameter of the beam chopper; anda processing system for analyzing the electronic signals generated by the first detection system and the second detection system and for generating an image on a display, wherein the enclosure comprises a first side defined by a planar surface having an exterior surface facing the person and an interior surface, wherein the first side is configured to receive the radiation scattered from the person; a second side in an acute angular relationship with said first side, wherein said second side is defined by a planar surface having an interior surface adapted to receive radiation passing through the first side and wherein said second side is configured to only receive radiation after it passes through said first side; a first substrate positioned on the interior surface of the first side, wherein the first substrate further comprises an active area for receiving and converting said radiation into light; a second substrate positioned on the interior surface of the second side, wherein the second substrate further comprises an active area for receiving and converting said radiation into light; and at least one photodetector having a light responsive area and a non-light responsive area, wherein the light responsive area is positioned to receive the light emitted from the first substrate and the second substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An inspection system for detecting objects being carried by a stationary person having a height equal to or less than 6 feet 8 inches and a width equal to or less than 45 inches comprising:
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a first detection system, contained within a first enclosure, configured to detect radiation scattered from said person, wherein said first detection system is configured to generate electronic signals responsive to the detected radiation; a second detection system, contained within a second enclosure, configured to detect radiation scattered from said person, wherein said second detection system is configured to generate electronic signals responsive to the detected radiation; an X-ray source positioned in an enclosure, having a surface, between said first detection system and said second detection system, wherein said X-ray source is coupled to a beam chopper and configured to generate a field of view capable of scanning the height and the width of said person when said person is positioned no more than one foot from the surface of the enclosure; and a processing system for analyzing the electronic signals generated by the first detection system and the second detection system and for generating an image on a display, wherein said image has sufficient resolution to visually differentiate between the person'"'"'s body and explosive material, wherein the first enclosure comprises a first side defined by a planar surface having an exterior surface facing the person and an interior surface, wherein the first side is configured to receive the radiation scattered from the person; a second side in an acute angular relationship with said first side, wherein said second side is defined by a planar surface having an interior surface adapted to receive radiation passing through the first side and wherein said second side is configured to only receive radiation after it passes through said first side; a first substrate positioned on the interior surface of the first side, wherein the first substrate further comprises an active area for receiving and converting said radiation into light; a second substrate positioned on the interior surface of the second side, wherein the second substrate further comprises an active area for receiving and converting said radiation into light; and at least one photodetector having a light responsive area and a non-light responsive area, wherein the light responsive area is positioned to receive the light emitted from the first substrate and the second substrate. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification