Electron emitting method of electron emitter

摘要

An electron emitter (10A) has an emitter section (14) formed on a substrate (12), and a cathode electrode (16) and an anode electrode (20) formed on a same surface of the emitter section (14). A slit (18) is formed between the cathode electrode (16) and the anode electrode (20). A drive voltage (Va) from a pulse generation source (22) is applied between the cathode electrode (16) and the anode electrode (20), and the anode electrode (20) is connected to the ground. A collector electrode (24) is provided above the emitter section (14) at a position facing the slit (18). The collector electrode (24) is connected to a bias voltage source (102) through a resistor (R3). The emitter section (14) is made of a piezoelectric material. <IMAGE>