Nonlinear oscillations in the Knudsen plasma diodes

25th IUPAP Conference on Computational Physics

物理学;计算机科学

Ender, A.Ya.^1 ; Kuznetsov, V.I.^1

Ioffe Physical-Technical Institute, 194021 Saint-Petersburg, Russia^1

关键词: Electron velocity distribution functions;    Inter-electrode spacing;    Kinetic phenomena;    Knudsen;    Monoenergetic electron beams;    Nonlinear oscillation;    Surface ionization;    Vacuum diodes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/510/1/012046/pdf
DOI  :  10.1088/1742-6596/510/1/012046

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

Under analytical and numerical study are the kinetic phenomena inherent for nonlinear oscillations in 1D diodes in which charged particles are supplied from an emitter and move with no collision in the interelectrode spacing. An original numerical method (E,K code) is used to build up the ion and electron velocity distribution functions as well to study the structures forming in the course of the nonlinear oscillations both in the vacuum diode with monoenergetic electron beam and in the Knudsen diode with surface ionization. The oscillations are shown to occur owing to the Bursian-Pierce instability.