Activation of the explosive-emission cathode under various conditions of preinitiation

被引：6
|
作者：
Shunailov, S. A. [1 ]
Yalandin, M. I. [1 ,3 ]
Sharypov, K. A. [1 ]
Kolomiets, M. D. [1 ]
Ulmasculov, M. R. [1 ]
Shpak, V. G. [1 ]
Rostov, V. V. [2 ]
Mesyats, G. A. [1 ,2 ,3 ]
机构：
[1] Inst Electrophys UB RAS, Ekaterinburg 620016, Russia
[2] Inst High Current Elect SB RAS, Tomsk 634055, Russia
[3] PN Lebedev Phys Inst RAS, Moscow 119991, Russia
来源：
VACUUM | 2017年 / 143卷
关键词：
Field emission; Explosive electrons emission; Cathode; High voltage; Subnanosecond pulse; REPETITION FREQUENCY; ELECTRON-BEAM; POWER; GENERATOR; RADIATION; STABILITY; INJECTION; PULSES; RANGE;
D O I：
10.1016/j.vacuum.2017.03.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low inertial transition of the field emission into explosive electrons emission at the cathode and related fast-rise-time electron beam formation are of interest in a phase-stable excitation of relativistic high power microwave oscillators. We present experiments on the cathode activation using emission initiation during specially prepared advance voltage pulse (prepulse) possessing variable amplitude of tens hundreds kilovolts and the width adjustable from tenths to units of nanosecond. Such a prepulse can be separated in time with a main accelerating pulse as well as adjoined to the fast-rise-time voltage front. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：473 / 478
页数：6
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