Mask for coded aperture systems
First Claim
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1. A detector for identification and localization of radioisotopes, the detector comprising:
- a position sensitive detector configured to observe a location of emitted high energy radiation, the position sensitive detector comprising a surface comprising a first radiation sensitive material, a surface of the position sensitive detector positioned within a plane; and
an active mask positioned between a source of the high energy radiation and the position sensitive detector, the active mask comprising a plurality of attenuating elements formed from a second radiation sensitive material and a plurality of transparent elements through which the high energy radiation passes for detection by the position sensitive detector, wherein each attenuating element of the plurality of attenuating elements is configured to resolve an energy of the high energy radiation absorbed by the plurality of attenuating elements to identify the source of the high energy radiation.
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Abstract
A detector for identification and localization of radioisotopes, comprising a position sensitive detector configured to observe the location of emitted high energy radiation, wherein the position sensitive detector comprises a surface comprised of a first radiation sensitive material; and an active mask disposed in front of the position sensitive detector positioned such that the emitted high energy radiation is detected by the position sensitive detector after passage through the mask, wherein the mask comprises a second radiation sensitive material.
12 Citations
20 Claims
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1. A detector for identification and localization of radioisotopes, the detector comprising:
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a position sensitive detector configured to observe a location of emitted high energy radiation, the position sensitive detector comprising a surface comprising a first radiation sensitive material, a surface of the position sensitive detector positioned within a plane; and an active mask positioned between a source of the high energy radiation and the position sensitive detector, the active mask comprising a plurality of attenuating elements formed from a second radiation sensitive material and a plurality of transparent elements through which the high energy radiation passes for detection by the position sensitive detector, wherein each attenuating element of the plurality of attenuating elements is configured to resolve an energy of the high energy radiation absorbed by the plurality of attenuating elements to identify the source of the high energy radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A stand-off radiation imaging and detection system, comprising:
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a detector configured to identify and locate a radioisotope, the detector comprising; a position sensitive detector configured to observe a location of a high energy radiation source, the position sensitive detector comprising a surface comprising a first radiation sensitive material, a surface of the position sensitive detector positioned within a plane; and an active mask comprising a plurality of attenuating elements and a plurality of transparent elements positioned between the high energy radiation source and the position sensitive detector, the plurality of attenuating elements comprising a second radiation sensitive material and configured to resolve an energy of high energy radiation absorbed by the plurality of attenuating elements to identify the high energy radiation source. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification