Electron beam tube and window for electron beam extraction

Details Electron beam tube and window for electron beam extraction Electron beam tube and window for electron beam extraction

2005-03-22

2005-03-22

Lee, John R. (Department: 2881)

Radiant energy

Irradiation of objects or material

Ion or electron beam irradiation

C250S505100, C313S420000, C378S161000

Reexamination Certificate

active

06870174

ABSTRACT:
An object of the present invention is to provide to an electron beam tube and electron beam extraction window capable of generating high output electron beam by effectively releasing heat generated when an electron beam passes through a window whereby temperature rise of the window is controlled and breakage of the window is prevented. The electron beam tube comprises first projections continuously provided on a first surface of the window, and second projections which are continuously formed on a second surface of the window and are located in positions corresponding to areas between the first projections wherein a projection height of the second projection, a projection width of the second projection and a distance between the adjacent second projections are smaller than those of the first projections, respectively.

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