Cascade acceleration of an explosive-emission subnanosecond electron beam

被引：0

作者：

Lobanov, L. N. ^{[1
]}

Sadykova, A. G. ^{[1
]}

Sharypov, K. A. ^{[1
]}

Shpak, V. G. ^{[1
]}

Shunailov, S. A. ^{[1
]}

Yalandin, M. I. ^{[1
,2
]}

机构：

[1] RAS, Inst Electrophys UB, Ekaterinburg 620016, Russia

[2] RAS, PN Lebedev Phys Inst, Moscow 119991, Russia

来源：

PHYSICS OF PLASMAS | 2025年 / 32卷 / 03期

基金：

俄罗斯科学基金会;

关键词：

STIMULATED SCATTERING; PUMP WAVE; POWER; ENERGY;

D O I：

10.1063/5.0257386

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Cascade acceleration of a magnetized high-current subnanosecond electron beam (approximate to 15 kA/cm2) has been demonstrated in two gaps separated by a drift tube. Synchronized negative-polarity voltage pulses of approximately the same amplitude (approximate to 200 kV) were supplied to the gaps from autonomous high-voltage pulse generators. The pulse durations (1 and 0.5 ns) were determined by the accuracy of their synchronization (+/- 200 ps). After passing through foil filters of different thickness (i.e., cutoff energy), the beam electrons were detected by a picosecond resolution collector sensor. It was found that the kinetic energy of the subnanosecond fraction of a tubular beam with a current of approximate to 1.2 kA, accelerated to 250 keV in the first gap with an explosive-emission cathode, increased to approximate to 500 keV at the output of the second gap.

引用

页数：10

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