Variable collimator

Details Variable collimator Variable collimator

G - Physics

21

K

358/28

G21K 1/02 (2006.01) A61B 6/03 (2006.01) A61B 6/06 (2006.01) G21K 1/04 (2006.01)

Patent

CA 1096055

VARIABLE COLLIMATOR ABSTRACT OF THE DISCLOSURE An automatic variable collimator which controls the width and thickness of X-ray beams in X-ray diagnostic medical equipment. A two-part collimator is provided which shapes an X-ray beam both prior to its entering an object subject to radiographic analysis and after the attenuated beam has passed through the object. Interposed between a source of radiation and the object subject to radiographic analysis is a first or source collimator. The source collimator causes the X-ray beam emitted by the source of radiation to be split into a plurality of generally rectangular shaped beams. A second or receiver collimator is interposed between the object subject to radiographic analysis and a series of radiation detectors. The receiver collimator is disposed to receive the attenuated X-ray beams passing through the object subject to radiographic analysis. The width and thickness of the beams which are shaped by the source and receiver collimators are automatically and remotely controlled. -1-

298634

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