| 摘要 |
<p>A magnetron includes a cathode assembly 1 which comprises a helically wound wire 2 supported by a ceramic cylindrical member 3. Emissive material 4 is located between adjacent turns of the conductor 2 and connection is provided to the conductor via a rod 6 and tube 7. When current is passed through the conductor 2, the emissive material 4 is directly heated.</p> |
