| 摘要 |
<p>An energy ray generating device (1a) comprises an electron gun (2), a vacuum vessel (3), and an outgoing window forming part (10a or 10b). The electron gun (2) comprises a resin member (4), a case (5), a connector (6), a filament (7), and internal wires (9a, 9b). The case (5) comprises inner surfaces (5a, 5b) facing each other in the Z-axis direction and inner surfaces (5c, 5d) facing each other in the X-axis direction and an opening (5g) passing from the inner surface (5a) to the outer surface. The resin member (4) is disposed in contact with the inner surfaces (5a, 5c) of the case (5) and apart from the other inner surfaces (5b, 5d to 5f). The resin member (4) comprises a projecting part (4b) projecting from the opening (5g). The filament (7) is fitted to the end of the projecting part (4b). The connector (6) is disposed on the inner surface (5c). Consequently, the effect of the expansion of the resin member (4) due to heating with a high voltage can be effectively suppressed.</p> |
