X-ray scatter and transmission system with coded beams
First Claim
Patent Images
1. An inspection device for inspecting an object, the inspection device comprising:
- a. a source of penetrating radiation for irradiating the object at a plurality of positions;
b. at least one detector for detecting the penetrating radiation after interaction with the object;
c. a modulator for modulating the incident penetrating radiation in such a manner as to characterize the position of irradiation; and
d. a processor for deriving the position of irradiation giving rise to the penetrating radiation detected by the at least one detector.
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Abstract
A system and method for inspecting an object with transmitted and/or scattered penetrating radiation using either a fan beam or multiple pencil beams while maintaining resolution comparable to that achievable using a single scannable pencil beam. The system and method provide for spatial resolution of transmitted radiation using a fan beam or multiple pencil beams and a nonsegmented detector.
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Citations
17 Claims
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1. An inspection device for inspecting an object, the inspection device comprising:
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a. a source of penetrating radiation for irradiating the object at a plurality of positions;
b. at least one detector for detecting the penetrating radiation after interaction with the object;
c. a modulator for modulating the incident penetrating radiation in such a manner as to characterize the position of irradiation; and
d. a processor for deriving the position of irradiation giving rise to the penetrating radiation detected by the at least one detector. - View Dependent Claims (2, 3, 4)
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5. An inspection device for inspecting an object, the inspection device comprising:
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a. a source of penetrating radiation for irradiating the object with a plurality of beams;
b. a modulation system for coding each of the beams with a distinct temporal pattern of intensity variation in such a manner that by decoding the detected signal, a signal component may be uniquely associated with each of the plurality of beams. c. at least one detector for detecting the penetrating radiation after interaction with the object;
d. a processor for deriving the position of irradiation giving rise to the penetrating radiation detected by the at least one detector. - View Dependent Claims (6, 7, 8)
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9. A method for illuminating an object with a beam of penetrating radiation, the beam having a specified cross-section, the method comprising:
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a. coding each pixel-sized component of the beam;
b. detecting the penetrating radiation after interaction with the object in such a manner as to produce a signal; and
c. decoding the detected signal into a plurality of components; and
d. uniquely associating each component of the detected signal with one particular pixel.
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11. An inspection device for inspecting an object, the inspection device comprising:
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a. a source of penetrating radiation for irradiating the object with a beam;
b. a modulation system for coding the beam after transmission through the object with a distinct temporal pattern of intensity variation in such a manner that by decoding the detected signal, a signal component may be uniquely associated with the modulated portion of the beam. c. at least one detector for detecting the penetrating radiation after interaction with the object;
d. a processor for deriving the position of irradiation giving rise to the penetrating radiation detected by the at least one detector. - View Dependent Claims (10, 12, 13, 14, 15, 17)
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16. A method for illuminating an object with a beam of penetrating radiation, the beam having a specified cross-section, the method comprising:
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a. coding each pixel-sized component of the beam after traversing the object;
b. detecting the penetrating radiation after interaction with the object in such a manner as to produce a signal; and
c. decoding the detected signal into a plurality of components; and
d. uniquely associating each component of the detected signal with one particular pixel.
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Specification