| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electron source which can discharge a large number of electrons in a high orientation constantly in a low temperature and a low vacuum environment. <P>SOLUTION: A flat electron source is provided with a cathode 3 having a flat cathode surface 2 on which a CNW film 4 is formed having a configuration of a large number of wall-like carbon flakes 5 of a nano order which is collectively and consecutively formed in a specific direction with respect to the surface of the cathode surface 2 in a high orientation and in the direction of the surface, and the electron is discharged from the whole surface of the CNW film 4 to the prescribed direction and in a flat pattern having an area corresponding to a projected area toward the electron discharging direction of the CNW film 4. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
