| 摘要 |
<p>An image intensifier (1) of the present invention is provided with a side tube (2) that constitutes a vacuum container, and the inner surface of the side tube (2) includes inner surfaces on ceramic rings (15A, 15B, 15C, 15D) and inner surfaces on electrodes (9A, 9B, 9C, 9E, 9F), and is formed of an inorganic insulating film (16a). With such configuration, electron emission from the electrode (9A, 9B, 9C, 9E, 9F) portions on the inner surface of the side tube (2) and from boundary surfaces between the electrodes (9A, 9B, 9C, 9E, 9F) and the ceramic rings (15A, 15B, 15C, 15D) is reduced, and output characteristics are excellently maintained. As a result, withstand voltage characteristics of the image intensifier (1) can be sufficiently improved.</p> |
