X-ray image tube, X-ray image tube device and X-ray device

Details X-ray image tube, X-ray image tube device and X-ray device X-ray image tube, X-ray image tube device and X-ray device

2006-05-30

2006-05-30

Gagliardi, Albert (Department: 2878)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

C250S318000, C378S098200, C378S098900

Reexamination Certificate

active

07053382

ABSTRACT:
An object of the present invention is to provide an X-ray image tube which enables acquisition of an image of a proper density by increasing contrast without increasing an irradiation dose of X-rays. The X-rays absorbed or scattered through a subject emit light on an input surface formed in an input window, and the light is further converted into electrons on a photoelectric surface which converts the light into the electrons, accelerated and focused by a focusing electrode, and then guided to an anode side. The electrons guided to the anode side are made visible by a fluorescent substance, and an image of a color is projected on a glass plate with a luminance and a color based on a distribution of the incident X-rays in accordance with the dose of the X-rays.

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