Personnel screening system
First Claim
Patent Images
1. A system for generating a two dimensional image of scattered radiation of a person, the system comprising:
- a first housing containing a first detection system configured to detect radiation scattered from the person;
a second housing containing a second detection system configured to detect radiation scattered from the person; and
a third tower containing an X-ray source assembly comprising an X-ray source, a spin-roll chopper and a motor, the third tower further having a front-end strip between an angled left side and an angled right side, and wherein the first housing and the second housing are detachably attached to the third housing so that the attachment abuts the first housing against the angled left side and abuts the second housing against the angled right side of the third tower, wherein the two dimensional image is generated from a dual-axis scanning beam, wherein a first axis of motion for the dual-axis scanning beam is provided by a walking movement of the person through an inspection area between the first and second housing and wherein a second axis of motion for the dual-axis scanning beam is provided by a fixed vertical scan beam of the X-ray source assembly.
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Abstract
The present specification discloses an inspection system for detecting objects being carried by a person. The inspection system is highly modular and capable of being assembled by a two person team using conventional tooling equipment. In one embodiment, the inspection system has three primary modules—two detection modules and one radiation source module—that can be readily attached and detached from each other or to a frame and connected to a signal processing system to provide for a quick set up and tear down process.
293 Citations
14 Claims
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1. A system for generating a two dimensional image of scattered radiation of a person, the system comprising:
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a first housing containing a first detection system configured to detect radiation scattered from the person; a second housing containing a second detection system configured to detect radiation scattered from the person; and a third tower containing an X-ray source assembly comprising an X-ray source, a spin-roll chopper and a motor, the third tower further having a front-end strip between an angled left side and an angled right side, and wherein the first housing and the second housing are detachably attached to the third housing so that the attachment abuts the first housing against the angled left side and abuts the second housing against the angled right side of the third tower, wherein the two dimensional image is generated from a dual-axis scanning beam, wherein a first axis of motion for the dual-axis scanning beam is provided by a walking movement of the person through an inspection area between the first and second housing and wherein a second axis of motion for the dual-axis scanning beam is provided by a fixed vertical scan beam of the X-ray source assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for generating a two dimensional image of scattered radiation of a person from a dual-axis scanning beam and conducting a plurality of predefined number of scans of the person and enabling variation of scanning beam power from a plurality of first areas to a plurality of second areas of the person, the system having first and second scanning sides and comprising:
a first axis of motion for the dual-axis scanning beam provided by a walking movement of the person through an inspection area between the first and second scanning sides, wherein each of said first scanning side and second scanning side respectively comprises; a first tower containing a first detection system configured to detect radiation scattered from the person; a second tower containing a second detection system configured to detect radiation scattered from the person, wherein each of said first tower and second tower, respectively comprises; a first housing defined by a first side, a second side and a third side that are connected to each other to form a polygonal cross-section; a second housing proximate said third side of the first housing; and a third tower containing an X-ray source assembly comprising an X-ray source, a spin-roll chopper and a motor, the third tower further having a front-end strip between an angled left side and an angled right side, and wherein the first tower and the second tower are detachably attached to the third tower so that the attachment abuts the first tower against the angled left side and abuts the second tower against the angled right side of the third tower. - View Dependent Claims (13)
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14. A system for generating a two dimensional image of scattered radiation of a person from a dual-axis scanning beam, the system having first and second scanning sides and comprising:
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a first axis of motion for the dual-axis scanning beam provided by a walking movement of the person through an inspection area between the first and second scanning sides, wherein each of said first scanning side and second scanning side respectively comprises; a first tower containing a first detection system configured to detect radiation scattered from the person; a second tower containing a second detection system configured to detect radiation scattered from the person, wherein each of said first tower and second tower, respectively comprises; a first housing defined by a first side, a second side and a third side that are connected to each other to form a triangular cross-section; a second housing proximate said third side of the first housing; a third tower containing an X-ray source assembly comprising an X-ray source, a spin-roll chopper and a motor, the third tower further having a front-end strip between an angled left side and an angled right side, and wherein the first tower and the second tower are detachably attached to the third tower so that the attachment abuts the first tower against the angled left side and abuts the second tower against the angled right side of the third tower; and a second axis of motion for the dual-axis scanning beam provided by a fixed vertical scan beam of the X-ray source assembly, wherein the scan beam emanates from a small opening at the front-end strip, and wherein said variation of scanning beam power is enabled by varying at least one of a pitch, a roll or a width of a plurality of helical apertures formed on a hollow cylinder of the spin-roll chopper.
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Specification