Concentric Dual Drum Raster Scanning Beam System and Method
First Claim
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1. A beam scanning device comprising:
- a. a first scanning element constrained to motion solely with respect to a first single axis and having at least one aperture for scanning radiation from inside the first scanning element to outside the first scanning element; and
b. a second scanning element constrained to motion solely with respect to a second single axis and having at least one aperture for scanning radiation that has been transmitted through the first scanning element across a region of an inspected object.
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Abstract
Devices and methods for collimation of a penetrating radiation source, such as an x-ray source, for the purpose of creating a scanning beam, as might be employed for purposes of imaging. A first scanning element, constrained to move about a first axis, has at least one aperture for scanning radiation from inside the first scanning element to outside the first scanning element. A second scanning element constrained to move with respect to a second axis, typically identical to the first, has at least one aperture for scanning radiation that has been transmitted through the first scanning element across a region of an inspected object.
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Citations
29 Claims
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1. A beam scanning device comprising:
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a. a first scanning element constrained to motion solely with respect to a first single axis and having at least one aperture for scanning radiation from inside the first scanning element to outside the first scanning element; and
b. a second scanning element constrained to motion solely with respect to a second single axis and having at least one aperture for scanning radiation that has been transmitted through the first scanning element across a region of an inspected object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A method for scanning a beam of radiation across a region in two dimensions for acquisition and display of a series of registered image frames, the method comprising:
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a. rotating a first scanning element about a first single axis, the first scanning element having at least one aperture for scanning radiation from inside the first scanning element to outside the first scanning element;
b. rotating a second scanning element about a second single axis, the second scanning element having at least one aperture for scanning radiation that has been transmitted through the first scanning element across a region of an inspected object; and
c. emitting radiation incident upon the first scanning element in such a manner that the radiation traverses the at least one apertures of the first scanning element and the at least one or more apertures of the second scanning element so as to scan the region in two dimensions. - View Dependent Claims (26, 27, 28, 29)
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Specification