萃取电压对电子和离子行为特征的影响

IF 1.5 4区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Chinese Physics B Pub Date : 2023-12-22 DOI:10.1088/1674-1056/ad1820

Ao Xu, Pingping Gan, Yuanjie Shi, Lei Chen

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引用次数: 0

摘要

萃取离子电流的特性对离子源性能的设计和测试具有重要影响。本文利用 2D3V 粒子池（2D3V PIC）方法，在直角坐标系中模拟了不同初始等离子体速度分布和萃取电压下的等离子体运动和离子萃取特性。等离子体密度在 1015 m-3~1016 m-3 之间，萃取电压在 100 V~1000V 之间。研究探讨了不同萃取电压对电子和正离子速度和密度分布的影响，并分析了不同初始等离子体速度分布对萃取电流的影响。模拟结果表明，萃取电流变化的主要原因是正负净荷相对聚集形成的空间电荷力。这为深入理解萃取束特性奠定了基础。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Influence of extraction voltage on electrons and ions behavior characteristics

The characteristics of the extracted ion current have a significant impact on the design and testing of ion source performance. In this paper, 2D3V particle in cell (2D3V PIC) method is utilized to simulate plasma motion and ion extraction characteristics under various initial plasma velocity distributions and extraction voltages in a Cartesian coordinate system. The plasma density is in the order of 1015 m-3~1016 m-3 and the extraction voltage is in the order of 100 V~1000V. The study investigates the impact of various extraction voltages on the velocity and density distributions of electrons and positive ions, and analyzes the influence of different initial plasma velocity distributions on the extraction current. The simulation results revealed that the main reason for the variation of extraction current is the space charge force formed by the relative aggregation of positive and negative net charges. This lays the foundation for a deeper understanding of extraction beam characteristics.

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来源期刊

Chinese Physics B 物理-物理：综合

CiteScore

2.80

自引率

23.50%

发文量

15667

审稿时长

2.4 months

期刊介绍： Chinese Physics B is an international journal covering the latest developments and achievements in all branches of physics worldwide (with the exception of nuclear physics and physics of elementary particles and fields, which is covered by Chinese Physics C). It publishes original research papers and rapid communications reflecting creative and innovative achievements across the field of physics, as well as review articles covering important accomplishments in the frontiers of physics. Subject coverage includes: Condensed matter physics and the physics of materials Atomic, molecular and optical physics Statistical, nonlinear and soft matter physics Plasma physics Interdisciplinary physics.