BUNEMAN INSTABILITY, PIERCE INSTABILITY, AND DOUBLE-LAYER FORMATION IN A COLLISIONLESS PLASMA

被引：98

作者：

IIZUKA, S

SAEKI, K

SATO, N

HATTA, Y

机构：

[1] Department of Electronic Engineering, Tohoku University, Sendai

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.43.1404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Instabilities and double-layer formation are systematically investigated on a bounded collisionless system with electron beam penetrating through a plasma. The Buneman instability is observed at low beam currents. Above a critical current, there appears a sudden nonoscillatory potential drop due to the Pierce instability, which traps ions in the potential well. This collisionless ion trapping provides a new formation mechanism of the double layer, which is controlled by changing the speed of the potential drop. © 1979 The American Physical Society.

引用

页码：1404 / 1407

页数：4

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