X-Ray Imaging with Continuously Variable Zoom and Lateral Relative Displacement of the Source
First Claim
Patent Images
1. A system for inspecting an object, the system comprising:
- a source of penetrating radiation characterized by a radiation pattern;
a first aperture characterized by a first limiting extent in at least one dimension disposed in a path of emitted penetrating radiation, the path characterized by an axis;
a second aperture characterized by a second limiting extent in at least one dimension disposed in the path of emitted penetrating radiation; and
a translator for repositioning the source with respect to the first aperture, wherein at least one of source and the first and second apertures is movable transversely to the path of emitted penetrating radiation.
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Abstract
An inspection system based on penetrating radiation in which the field of view of a scan may be varied. First and second primary limiting apertures are provided for interposition between a source of penetrating radiation and an inspected object. This allows for significantly increasing the flux of penetrating radiation on this narrowed region of interest, thereby advantageously improving detectability. The relative position of the source with respect to either the first or the second aperture may be varied, in a direction either along, or transverse to, a normal to the aperture.
76 Citations
15 Claims
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1. A system for inspecting an object, the system comprising:
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a source of penetrating radiation characterized by a radiation pattern; a first aperture characterized by a first limiting extent in at least one dimension disposed in a path of emitted penetrating radiation, the path characterized by an axis; a second aperture characterized by a second limiting extent in at least one dimension disposed in the path of emitted penetrating radiation; and a translator for repositioning the source with respect to the first aperture, wherein at least one of source and the first and second apertures is movable transversely to the path of emitted penetrating radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for inspecting an object in a continuous zoom mode, the method comprising:
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disposing an aperture between a source of penetrating radiation and the object for defining a field of view of the emitted penetrating radiation, thereby creating a relative disposition of the aperture and the source of penetrating radiation, and varying the relative disposition of the aperture and the source of penetrating radiation in a direction transverse to a normal to the aperture in such a manner as to vary the field of view of the penetrating radiation. - View Dependent Claims (15)
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Specification