A method for manufacturing an electron source includes the steps of covering {HEAD ~ a substrate} provided with a first electrode and {TAIL ~ a second electrode} by a container, introducing a gas composed of a carbon compound into the container, and forming a carbon film by applying a voltage between the first electrode and the second electrode 
provided with
A method for manufacturing an electron source includes the steps of covering { HEAD ~ a substrate } provided with a first electrode and { TAIL ~ a second electrode } by a container , introducing a gas composed of a carbon compound into the container , and forming a carbon film by applying a voltage between the first electrode and the second electrode
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