Tomographic scanner

Details Tomographic scanner Tomographic scanner

1978-06-14

1981-02-24

Smith, Alfred E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

191 12C, A61B 600, H02G 1100

Patent

active

042530270

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.

REFERENCES:
patent: 3541334 (1970-11-01), Sobolewski
patent: 3852611 (1974-12-01), Cesar
patent: 3922552 (1975-11-01), Tedley
patent: 3924131 (1975-12-01), Hounsfield
patent: 3946234 (1976-03-01), Hounsfield
patent: 3986031 (1976-10-01), Chekroun
patent: 3999073 (1976-12-01), Hounsfield et al.
patent: 4001593 (1977-01-01), Wing et al.
patent: 4039807 (1977-08-01), Bull
patent: 4063104 (1977-12-01), Godd
patent: 4112303 (1978-09-01), Brandt
patent: 4114040 (1978-09-01), Hounsfield
patent: 4114043 (1978-09-01), Gansfried
patent: 4138611 (1979-02-01), Hounsfield
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.

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