X-ray tubes

Details X-ray tubes X-ray tubes

2004-04-23

2010-02-16

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Source

Electron tube

C378S121000

Reexamination Certificate

active

07664230

ABSTRACT:
The present invention is directed to an X-ray tube that has an electron source in the form of a cathode and an anode within a housing. The anode is a thin film anode, so that most of the electrons which do not interact with it to produce X-rays pass directly through it. A retardation electrode is located behind the anode and is held at a potential which is negative with respect to the anode and slightly positive with respect to the cathode.

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