| 摘要 |
An electron discharge device of the planar disk electrode type employs an electrode with a peripheral groove and a support and contact arrangement for the electrode. A conductive cylinder surrounding the electrode has a groove in its inner surface and a garter spring is positioned between and engages the grooves in both the electrode and the cylinder so that the turns of the spring provide high electrical conductivity between the electrode and the cylinder while minimizing the thermal conductivity.
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