Study on characteristics of ion emission from the ferroelectric media under low pressure condition

doi:10.16568/j.0254-6086.201804016

Abstract

Abstract:

Characteristics of ion emission from the ferroelectric media was investigated under low pressure condition. By utilizing high-speed camera photography, spectral analysis, and particle-in-cell simulation coupling with Monte Carlo collision, the optical emission composition and images from ferroelectric surface, plasma evolution of ferroelectric surface discharge, the mechanism of ion generation and the forming of ion current are discussed. These results are useful for further understanding to ferroelectric ion sources.

Key words: Ferroelectric, Plasma, Discharge, Ion emission

摘要：

以低气压条件下的铁电体离子发射特性为研究对象，通过结合高速相机、光谱的光学诊断和二维网格质点法耦合蒙特卡洛碰撞模型(PIC-MCC)的仿真模拟获得了锆钛酸铅(PZT)铁电体离子发射的主要成分、表面放电的发光及等离子体演化过程、离子的产生及离子电流形成机制，为进一步研究铁电体离子源奠定了基础。

关键词: 铁电体, 等离子体, 放电, 离子发射

CLC Number:

O571.6

XU Ao, YANG Lin, JIN Da-zhi, WAN Xiang, CHEN Lei. Study on characteristics of ion emission from the ferroelectric media under low pressure condition[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2018, 2(4): 482-488.

徐翱，杨林，金大志，万翔，陈磊. 低气压条件下的铁电体离子发射特性研究[J]. 核聚变与等离子体物理, 2018, 2(4): 482-488.

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