Anode for an x-ray tube

Details Anode for an x-ray tube Anode for an x-ray tube

1996-03-12

1998-04-28

Church, Craig E.

X-ray or gamma ray systems or devices

Source

Target

378 10, H01J 3508

Patent

active

057455465

ABSTRACT:
An anode for an x-ray tube has an incident surface on which an electron beam is incident for generating x-rays emanating from a focal spot. In at least that region wherein the focal spot is located during operation of the x-ray tube, the incident surface has a step-like structure with end faces that reside at a substantially right angle relative to the electron beam during operation of the x-ray tube. The end faces are connected by respective sidewalls, and backscattered electrons from the end faces strike the sidewalls and generate x-rays in addition to x-rays emanating from the end faces struck by the electron beam, thereby improving the efficiency of x-ray generation. A similar improvement can be achieved by an anode having a roughened surface in the region of the focal spot.

REFERENCES:
patent: 1174044 (1916-03-01), Benson
patent: 2071696 (1937-02-01), Jonas
patent: 2521663 (1950-09-01), Zunich
patent: 3683223 (1972-08-01), Dietz
patent: 4182955 (1980-01-01), Davis
patent: 4439870 (1984-03-01), Poulsen et al.

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