X-Ray tube

Details X-Ray tube X-Ray tube

1982-02-10

1984-08-28

Church, Craig E.

X-ray or gamma ray systems or devices

Source

Electron tube

378125, H01J 3500

Patent

active

044688024

ABSTRACT:
In an exemplary embodiment, a metallic shield for the discharge space between the cathode and the anode is connected to a potential which is greater than half the tube voltage and smaller than the entire tube voltage. What is achieved thereby is that backscatter electrons from the focal spot space are withdrawn and the anode load carrying capacity is thereby increased, and that the outside-of-focus component of the radiation is reduced as well. Moreover, a very close-to-focus definition or collimation of the cone of rays is possible. X-ray tubes according to the disclosure are particularly applicable in medical X-ray diagnostics.

REFERENCES:
patent: 2952790 (1960-09-01), Steen
patent: 4309637 (1982-01-01), Fetter

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