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Title: Tomographic scanner
Abstract:
A tomographic scanner for subjecting a planar region of a patient to radiation and producing an image representing the planar region in which at least the source or beam of radiation is moved with a varying speed. In particular, in a traverse and rotate type scanner, a carriage carrying the radiation source and detector(s) is traversed relative to the patient with generally simple harmonic motion. Additionally, vibration is reduced by using a motor, which may include a flywheel, running at substantially constant speed to traverse the carriage. Vibration is further reduced by connecting the motor for rotating the carriage to the carriage through a flexible, e.g. chain, drive. Cable connections to the X-ray tube and other elements carried by the moveable carriage are simplified with a bicycle-chain like flexible cable support.
Other info: Inventors: Taylor, Samuel K. (Chardon, OH, US) Erker, Joseph W. (Aurora, OH, US) Carper, Robert L. (Hudson, OH, US) Application Number: 915316 Filing Date: 1978-06-14 Publication_date: 1981-02-24 Assignee: Ohio-Nuclear, Inc. (Solon, OH) Primary Class(es): 378/14 191/12C, 378/146, 378/193, 378/194 Other Classes: US Patent Ref:
Other Refs: Other References: Brochure for Catrac Rolling Conductor Carrier, Gemco Electric, pp. 285, 286, 288. IEEE Standard Dictionary of Electrical and Electronics Terms, Wiley-Interscience, 1972, p. 602. | |