Personnel screening system
First Claim
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1. An inspection system for detecting objects being carried by a person, the inspection system comprising:
- an X-ray source configured to generate a beam spot pattern of radiation that moves in a direction perpendicular to a direction of motion of the person;
a first detection system and a second detection system both configured to detect radiation scattered from said person;
wherein said X-ray source is coupled with a beam chopper to produce a scanning pencil beam of X-rays, wherein said beam chopper comprises a chopper wheel having three slits, and wherein each slit is positioned 120 degrees apart from an adjacent slit; and
wherein said X-ray source generates a beam spot pattern by pivoting from a first point to a second point and wherein said pivoting is centered around a predefined point of rotation.
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Abstract
The present specification discloses an inspection system for detecting objects being carried by a person who is moving along a pathway. The inspection system has two detection systems configured to detect radiation scattered from the person as the person moves along the pathway and an X-ray source positioned between the detection systems. The X-ray source is configured to generate a vertical beam spot pattern and does not generate beams that move horizontally.
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Citations
19 Claims
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1. An inspection system for detecting objects being carried by a person, the inspection system comprising:
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an X-ray source configured to generate a beam spot pattern of radiation that moves in a direction perpendicular to a direction of motion of the person; a first detection system and a second detection system both configured to detect radiation scattered from said person; wherein said X-ray source is coupled with a beam chopper to produce a scanning pencil beam of X-rays, wherein said beam chopper comprises a chopper wheel having three slits, and wherein each slit is positioned 120 degrees apart from an adjacent slit; and wherein said X-ray source generates a beam spot pattern by pivoting from a first point to a second point and wherein said pivoting is centered around a predefined point of rotation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An inspection system for detecting objects being carried by a person, the inspection system comprising:
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an X-ray source configured to generate radiation to scan said person; a first detection system and a second detection system both configured to detect radiation scattered from said person, wherein the first detection system is contained within a first enclosure;
the second detection system is contained within a second enclosure and the X-ray source is contained within a third enclosure;wherein said X-ray source is coupled with a beam chopper to produce a scanning pencil beam of X-rays, and wherein said beam chopper comprises a hollow cylinder having at least one helical aperture; and wherein the third enclosure is physically separate from, and independent of, the first and second enclosures;
the first enclosure is physically separate from, and independent of, said second enclosure; and
wherein each of the first, second, and third enclosures weigh less than 88 pounds. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An inspection system for detecting objects being carried by a person, the inspection system comprising:
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an X-ray source configured to generate a beam spot pattern of radiation that moves in a direction perpendicular to a direction of motion of the person; a detection system configured to detect radiation scattered from said person; wherein said X-ray source is coupled to a beam chopper such that the X-ray source and a beam chopper are coupled to a surface configured to tilt vertically in relation to a guide member and in response to a motor to generate said beam spot pattern; and wherein said X-ray source is coupled to a vertical elevating mechanism wherein said elevating mechanism is coupled to a weight configured to counterbalance the X-ray source to generate the beam spot pattern. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification