Experimental investigation of electron guns for THz microwave vacuum amplifiers

被引:13
作者
Burtsev, A. A. [1 ,2 ]
Grigor'ev, Yu. A. [1 ,2 ]
Navrotsky, I. A. [1 ,2 ]
Rogovin, V. I. [1 ,2 ]
Sakhadzhi, G. V. [1 ,2 ]
Shumikhin, K. V. [1 ,2 ]
机构
[1] ALMAZ Res & Prod Enterprise, Saratov 410033, Russia
[2] ALMAZ Res & Prod Enterprise, Saratov 410033, Russia
关键词
D O I
10.1134/S1063785016050229
中图分类号
O59 [应用物理学];
学科分类号
摘要
Single-sheet and multiple beam electron emitters based on thermionic minicathodes for terahertz traveling-wave tubes have been studied. Data are presented for impregnated blade thermionic cathode with dimensions 0.1 x 0.7 mm and a maximum current density of 114 A/cm(2) in a pulsed mode. A variant of the five-beam electron gun with 0.25-mm-diameter cylindrical minicathodes in cells of a control grid is proposed that provides a current density of 85.5 A/cm(2) at a grid potential of 900-1000 V.
引用
收藏
页码:543 / 545
页数:3
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