The present invention relates to a radioactive electron emitting
microchannel plate. More particularly, to a radioactive electron
generating microchannel plate comprising (a) a pair of parallel
substrates; (b) at least one radioactive material layer deposited on an
inner surface of the substrates; and (c) at least one electron
ray-amplifying layer deposited on the surface of the radioactive material
layer. The emitted electron ray is amplified by penetrating into the
cavity formed by a pair of parallel substrates and is further amplified by
reflecting from the electron ray-amplifying layer. As the substrate in the
microchannel plate, use can be made of a capillary tube or a thin plate.
The microchannel plate of the present invention can be applied as an
electron ray source in an electron ray-generating device, an image display
device, and electron ray-etching device.
