X-Ray apparatus alignment method and device

Details X-Ray apparatus alignment method and device X-Ray apparatus alignment method and device

1980-08-04

1982-10-26

Church, Craig E.

X-ray or gamma ray systems or devices

Source

Electron tube

2502521, 378205, G03B 4116

Patent

active

043564003

ABSTRACT:
In x-ray apparatus where the central ray of an x-ray beam must be made perpendicular to the planes of one or more image receptors, a central ray locator is coupled to the beam output port of an x-ray tube casing and the central ray is indicated when a luminescent spot occurs at the intersection point of cross hairs on a phosphor screen. A laser device then replaces the locator. Its beam simulates the central ray and coincides with it and provides a visual indication of it. The laser beam enables determining if the tube casing is moving in a straight vertical line by observing the movements of the laser beam light spot while it is projected on a plane surface. Procedures are disclosed for establishing the simulated central ray in perpendicularity with receptor planes.

REFERENCES:
patent: 4053782 (1977-10-01), Grass
patent: 4092544 (1978-05-01), Grim
patent: 4117337 (1978-09-01), Staats
patent: 4167675 (1979-09-01), Stodberg

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