Field emitter array cathodes for high current density, high current applications

Summary form only given. Microfabricated field emitter array (FEA) cathodes have demonstrated the potential to provide kA/cm/sup 2/ current densities with long lifetimes in continuous or repetitively pulsed modes of operation. However, FEA cathodes have historically not achieved their full potential due to imperfect spatial uniformity of emission. We are… (More)