Gradated target for X-ray tubes

Details Gradated target for X-ray tubes Gradated target for X-ray tubes

1978-11-20

1980-10-07

Dixon, Harold A.

Electric lamp and discharge devices

With temperature modifier

For electrode within an envelope

313 60, 313330, H01J 3510

Patent

active

042271126

ABSTRACT:
An X-ray tube including a tubular envelope having therein an X-ray target comprised of a support body made of a first material and provided with a composite surface layer comprising a controlled gradient of a second material disposed in the first material, one of the materials being an X-ray emissive material and the other of the materials being a heat absorbent material, and an electron emitting cathode disposed to beam electrons onto a focal spot area of the composite surface layer.

REFERENCES:
patent: 2863083 (1958-12-01), Schram
patent: 3649355 (1972-03-01), Hennig
patent: 3662210 (1972-05-01), Maximov
patent: 3890521 (1976-06-01), Shroff
patent: 3936689 (1976-02-01), Birjukova et al.
patent: 3969131 (1976-07-01), Fatzer et akl.
patent: 4090103 (1978-05-01), Machenschalk et al.

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