平面离散电极离子质量分析仪的解析与数值模拟

2019 8th Mediterranean Conference on Embedded Computing (MECO) Pub Date : 2019-06-01 DOI:10.1109/MECO.2019.8760017

E. Mamontov, A. Dyagilev, R. N. Dyatlov, O. Melnik, A. E. Chizhikov

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引用次数: 0

摘要

研究了非单极离子在二维线性射频电场中的时空聚焦特性。给出了在分析仪工作区域具有线性射频场的各种电极系统的计算机建模结果。结果表明，最有效的是在射频电位下具有线性-离散分布的平板电极质量分析仪。提出了具有线性射频电场的离子光学系统。数值模拟表明，当离子能量扩散到$\mathrm{W}_{\max}/\mathrm{W}_{\min}=2$，初始坐标$\mathrm{x}_{\min}/\mathrm{x}_{\max}=2$，入口角$\vert {\alpha}\vert < 2^{\circ}$时，可以实现$\mathrm{R} > 10^{3}$的分辨率(摘要)

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Analytical and Numerical Modeling of Ion Mass-Analyzers with Planar Discrete Electrodes

The properties of the space-time focusing of non-monopolar ions in two-dimensional linear radio-frequency electric fields are examined. The computer modeling results of electrode systems' various versions with a linear radio-frequency field in the analyzer' working area are given. It is shown that the most efficient is a flat-electrode mass analyzer with a linear-discrete distribution at a radio-frequency potential. Ion-optical systems with linear radio-frequency electric fields are proposed. Numerical modeling showed the possibility of achieving a resolution of $\mathrm{R} > 10^{3}$ with an ion energy spread up to $\mathrm{W}_{\max}/\mathrm{W}_{\min}=2$, initial coordinates $\mathrm{x}_{\min}/\mathrm{x}_{\max}=2$, entrance angles $\vert {\alpha}\vert < 2^{\circ}$ (Abstract)

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来源期刊

2019 8th Mediterranean Conference on Embedded Computing (MECO)

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