| 摘要 |
A fast atom beam source is capable of efficiently emitting a fast atom beam with low energy and high particle flux. A plate-shaped electrode has a plurality of atom emitting holes. A pair of electrodes are disposed in series opposite the plate-shaped electrode so as to form an electric discharge part. An AC power supply impresses an AC voltage between the pair of electrodes. A DC power supply impresses a DC voltage between the plate-shaped electrode and one of the pair of electrodes that is closer to the plate-shaped electrode. A gas inlet introduces a gas to induce electric discharge in the space between the plate-shaped electrode and the pair of electrodes.
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