X-ray tube

Details X-ray tube X-ray tube

2006-10-17

2006-10-17

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Electronic circuit

X-ray source power supply

C378S137000, C378S138000

Reexamination Certificate

active

07123688

ABSTRACT:
The invention relates to an X-ray tube which includes a device for at least substantially protecting an object to be examined against the incidence of undesirable X-rays (E) which can be produced notably by the decay of a residual or surplus charge present in a high-voltage circuit after an X-ray exposure. To this end there is provided at least one device (341, 342) for deflecting and/or defocusing the electron beam (E) produced by the residual and/or surplus charge in such a manner that at least it is not incident to a significant extent on a region (22) of an anode (2) wherefrom X-rays excited thereby are directed towards an object to be examined.

REFERENCES:
patent: 3852605 (1974-12-01), Watanabe et al.
patent: 4926452 (1990-05-01), Baker et al.
patent: 5199054 (1993-03-01), Adams et al.
patent: 2003/0141450 (2003-07-01), Craven et al.
patent: 0279317 (1988-08-01), None
patent: 52104889 (1977-09-01), None
patent: 54023492 (1979-02-01), None

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