Section 325.5021. Definitions X-ray.

Rule 21. (1) "X-ray apparatus" means any source of x-ray and its high voltage supply.

(2)       "X-ray control" means a device which controls input power to the x-ray high-voltage generator or the x-ray tube or both. It includes equipment which controls the technique factors of any x-ray exposure.

(3)     "X-ray equipment" means an x-ray system, subsystem or component thereof.

(4)     "X-ray field" means that area of the intersection of the useful beam and any 1 of the set of planes parallel to and including the plane of the image receptor, whose perimeter is the locus of points at which the exposure rate is 1/4 of the maximum in the intersection.

(5)     "X-ray high-voltage generator" means a device which transforms electrical energy from the potential supplied by the x-ray control to the tube operating potential. The device may include means for transforming alternating current to direct current, filament transformers for the x-ray tubes, high-voltage switches, electrical protective devices and other appropriate elements.

(6)     "X-ray system" means an assemblage of components for the controlled production of x- rays. It includes minimally an x-ray high-voltage generator, an x-ray control, a tube housing assembly, a beam-limiting device, and the necessary supporting structures. Additional components which function with the system are considered integral parts of the system.

(7)     "X-ray subsystem" means any combination of 2 or more components of an x-ray system for which there are requirements specified in these rules.

(8)     "X-ray tube" means any electron tube which is designed for the conversion of electrical energy into x-ray energy.

History: 1954 ACS 85, Eff. Dec. 3, 1975; 1954 ACS 98 Eff. Mar 9, 1979.