Electronic control of rotating anode microfocus x-ray tubes for

Details Electronic control of rotating anode microfocus x-ray tubes for Electronic control of rotating anode microfocus x-ray tubes for

1985-02-25

1986-12-23

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

378109, 378110, 378117, 378118, H05G 152

Patent

active

046317422

ABSTRACT:
Anode life in an x-ray tube is extended by applying a reduced power density to the anode to afford controlled heating of the anode to a predetermined ductile temperature prior to operating the tube at full power. Controlled heating of the anode is accomplished by defocusing the electron beam for a period of time sufficient to enable the anode to reach the desired temperature. The electron beam source of the tube may also be controlled during heating of the anode so as to supply a reduced beam current.

REFERENCES:
patent: 2315593 (1943-04-01), Cassen
patent: 3567939 (1971-03-01), Schadler
patent: 3852605 (1974-12-01), Watanabe et al.
patent: 4191889 (1980-03-01), Cowell
patent: 4366575 (1982-12-01), Bax
patent: 4490834 (1984-12-01), Sudani
patent: 4594554 (1986-06-01), Schick

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