Radiant energy – Inspection of solids or liquids by charged particles – Analyte supports
Patent
1977-12-28
1979-06-19
Church, Craig E.
Radiant energy
Inspection of solids or liquids by charged particles
Analyte supports
250490, G03B 4116
Patent
active
041587774
ABSTRACT:
An X-ray apparatus includes an image amplifier assembly located above the patient's support table and an X-ray tube located below the patient table. Linkage means couple the image amplifier and X-ray tube such that when the image amplifier is moved, either toward the head end or toward the foot end of the patient table, reaction force components are set up which cause the X-ray tube and its casing to simultaneously shift laterally in a direction opposite to that in which the image amplifier assembly is being moved and to simultaneously pivot angularly on its shifting pivot axis. The extent of the pivotal angular movement corresponds to that of the image amplifier, thereby to maintain the axis of the X-ray beam perpendicular to the image plane of the image amplifier in its shifted angulated position. Lateral shifting of the pivot axis of the X-ray tube and its casing in a direction opposite that in which the image amplifier is being moved, allows a larger portion of the X-ray beam to pass through the fixed opening in the cover of the cabinet which houses the X-ray tube. Lateral shifting and simultaneous pivotal movement of the X-ray tube and its axis is achieved by means of a laterally movable trolley on which the X-ray tube is supported and by a cam and cam-follower arrangement which pivots the tube and its casing in response to lateral movement of the trolley.
REFERENCES:
patent: 4024403 (1977-05-01), Bernstein
Church Craig E.
Spectrum X-Ray Corporation
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