X-ray or gamma ray systems or devices – Beam control – Collimator
Patent
1992-01-13
1993-11-16
Porta, David P.
X-ray or gamma ray systems or devices
Beam control
Collimator
378149, 378154, G21K 102
Patent
active
052630757
ABSTRACT:
A method of producing a high angular resolution collimator implemented in an inspection system for detecting the presence of selected crystalline materials, such as explosives or drugs. The system includes an x-ray source and an array of energy dispersive detectors to sense radiation scattered by the objects being inspected. The collimator includes a bundle of optical fibers bonded together to form a stack of plates having a plurality of microcapillaries therein to pass an x-ray beam therethrough. The method includes the steps of stacking the plates, aligning the plates in registration, and etching an inner core without disrupting registration.
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Thiel et al., "Focusing of Synchrotron Radiation Using Tapered Glass Capillaries," Physica B, vol. 158, pp. 314-316 (1989).
Stern et al., "Simple Method for Focusing X-Rays Using Tapered Capillaries," Applied Optics, vol. 27, No. 24, pp. 5135-5139 (Dec. 1989).
McGann William
Ribeiro Kenneth
Ion Track Instruments, Inc.
Porta David P.
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