Microchannel plate devices with tunable resistive films

摘要

A microchannel plate includes a substrate defining a plurality of channels extending from a top surface of the substrate to a bottom surface of the substrate. A resistive layer is formed over an outer surface of the plurality of channels that provides ohmic conduction with a predetermined resistivity that is substantially constant. An emissive layer is formed over the resistive layer. A top electrode is positioned on the top surface of the substrate. A bottom electrode positioned on the bottom surface of the substrate.

主权项

1. A microchannel plate comprising:
a) a substrate defining a plurality of channels extending from a top surface of the substrate to a bottom surface of the substrate; b) a resistive layer formed over an outer surface of the plurality of channels, the resistive layer comprising a composite film of layers of two or more materials in a layered stack, where the layers are alternating layers of materials chosen to have a composition that provides an insensitivity of resistance to applied external electric field and a stability of resistance with applied bias; c) an emissive layer different from the resistive layer and formed over the resistive layer; d) a top electrode positioned on the top surface of the substrate; and e) a bottom electrode positioned on the bottom surface of the substrate.