MCP:Electrode Materials

The electrodes in a microchannel plate (MCP) are formed on the surfaces of the MCP to allow for the application of a voltage, which creates an electric field that accelerates electrons through the channels. The electrodes are processed to have a surface resistance of 100 Ω to 200 Ω across both edges of the MCP surface.

Several materials can be used for MCP electrodes, including:

  • Inconel: A nickel-chromium alloy.
  • Nickel-Chromium (NiCr): This material is commonly used for electrodes in MCPs fabricated using Atomic Layer Deposition (ALD).
  • Gold (Au): While gold offers excellent electrical conductivity, it is not ideal for MCP electrodes due to its high cost and poor adhesion.
  • Copper (Cu): Copper is another material with good electrical conductivity but suffers from poor oxidation resistance, making it unsuitable for MCP electrodes.