Increasing the reliability and service life of the cathode unit of an electron accelerator with extraction of a large-cross-section beam to the atmosphere

被引：1
|
作者：
Anisimova, T. E. [1 ]
Malinin, A. N. [1 ]
机构：
[1] Res Inst Complex Testing Optoelect Devices, Sosnovyi Bor 188540, Leningrad Oblas, Russia
来源：
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES | 2008年 / 51卷 / 06期
关键词：
52; 80; Vp; 41; 75; Fr; 42; 55; Lt;
D O I：
10.1134/S0020441208060171
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The design of an electron accelerator cathode unit with short filament elements in the form of a coil without a tightening mechanism is described. The advantage of the developed design over those of cathodes with long filaments with tightening mechanisms is shown. The nonuniformity of the beam-current density distribution behind the foil is < 3%. The filament power required for cathodes in the form of coils is 20% lower than that for long-filament cathodes at the same beam-current density. Mechanical stresses leading to a breakdown of the cathode filaments are absent. The service life is determined mainly by the emission-caused wear of cathodes.
引用
收藏
页码：871 / 874
页数：4
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