Influence of ion species on extraction characteristics of mixed ion beams

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

Chinese Physics B Pub Date : 2024-08-01 DOI:10.1088/1674-1056/ad5c3d

Ao Xu, Pingping Gan, Xiang Wan, Yuanjie Shi

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引用次数: 0

Abstract

The spatial distributions of different kinds of ions are usually not completely the same in the process of extracting. In order to study the reason for the different characteristics of ion extraction, a simplified simulation model of Cu⁺ and Cr⁺ ions extraction process was established by 2D3V (two-dimensional in space and three-dimensional in velocity space) particle-in-cell (PIC) method. The effects of different extraction voltages from 0 V to 500 V on the density distribution of Cu⁺ and Cr⁺ ions and the change of plasma emission surface were analyzed. On the basis of this model, the ion density distribution characteristics of Cu⁺ ions mixed with Li⁺, Mg⁺, K⁺, Fe⁺, Y⁺, Ag⁺, Xe⁺, Au⁺, and Pb⁺ ions respectively under 200-V extraction voltage are further simulated, and it is revealed that the atomic mass of the ions is the key reason for different ion density distributions when different kinds of ions are mixed and extracted, which provides support for further understanding of ion extraction characteristics.

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离子种类对混合离子束萃取特性的影响

在萃取过程中，不同种类离子的空间分布通常不完全相同。为了研究离子萃取特性不同的原因，采用 2D3V（空间二维、速度空间三维）粒子入胞法（PIC）建立了 Cu+ 和 Cr+ 离子萃取过程的简化模拟模型。分析了从 0 V 到 500 V 的不同萃取电压对 Cu+ 和 Cr+ 离子密度分布和等离子体发射面变化的影响。在此基础上，进一步模拟了在 200 V 萃取电压下，Cu+ 离子分别与 Li+、Mg+、K+、Fe+、Y+、Ag+、Xe+、Au+ 和 Pb+ 离子混合后的离子密度分布特征，发现离子的原子质量是不同种类离子混合萃取时离子密度分布不同的关键原因，为进一步理解离子萃取特征提供了支持。

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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.