JPS63129946U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view showing a high-power klystron vacuum evacuation device according to an embodiment of this invention;
is an external view showing a high-power klystron with the one shown in Fig. 1 installed, Fig. 3 is an external view of a conventional high-power klystron, and Fig. 4 is a partial vertical sectional view showing the main parts of Fig. 3. . 105 is a cathode structure, 105a is a cathode, 105b is Wehnelt (focusing electrode part), 10
6 is an anode structure, 106a is a disk member, 10
7 is a protective cylinder, 110 is a vacuum outlet, 111 is a space, and B is a tip-off position. In addition, in the figure,
The same reference numerals indicate the same or equivalent parts.

Amendment May 14, 1982 The brief description of the drawing is amended as follows. From page 8, line 20 of the specification to page 9, line 1, the phrase "2nd wa" is corrected to ``Fig. 2 wa''.

Claims (1)

[Scope of utility model registration request] A cathode structure having a converging electrode portion and an anode structure facing the cathode structure are sealed inside a protective cylinder, and the protective cylinder is provided with a vacuum outlet that allows tip-off after completion of evacuation. In the high-power klystron vacuum evacuation device, a disc member having an outer diameter slightly smaller than the inner diameter of the protective cylindrical body is provided in the anode component, and between the disc member and the inner wall of the protective cylindrical body. 1. A vacuum evacuation device for a high-power klystron, characterized in that a space is formed in the space, and the vacuum port is exposed in the space.