Dual-mode multi-beam electronic gun for dual-mode traveling wave tube and method for controlling dual-mode multi-beam electronic gun
A dual-mode traveling wave tube and dual-mode technology, applied to the electron/ion gun of the time-of-flight electron tube, the cathode of the time-of-flight electron tube, etc., can solve the problems of restricting technological development and not fully complying with the dual-mode electron gun , to achieve the effect of simplified process, easy processing and simple process structure
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[0034] Depend on Figure 1-12 Combining the shown structures, it can be seen that this dual-mode multi-injection electron gun for dual-mode traveling wave tubes includes sequentially arranged cathodes 6, shadow grids 7, inner grids 8, outer grids 9 and anodes 10; the cathode 6 includes cathode molybdenum Cylinder 1, the cathode molybdenum cylinder 1 is divided into two parts along the axis of the cathode molybdenum cylinder 1, the two parts are separated by insulating ceramics 4, a cathode sponge 2 is installed in one part, and a filament potting is installed in the other part An insulator 3, and a filament potting insulator 3 is provided with a filament 5; the end face of the cathode molybdenum cylinder 1 is provided with several holes, the inner grid 8 controls the electron beam in a part of the holes, and the outer grid 9 controls the electron beam in the remaining holes. The electron beam realizes dual-mode operation.
[0035] The diameter of the holes on the end surface ...
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