化学
离子
离子阱
四极离子阱
四极
离子障
工作职能
电极
离子流
原子物理学
领域(数学)
俘获
分析化学(期刊)
物理
生物
色谱法
数学
生态学
物理化学
有机化学
纯数学
作者
X. K. Zhou,Gaoping Xu,Chenyan Xiong,Rui Chen,Huijie Qiao,Zongxiu Nie
摘要
In this article, we calculated the potential function of the surface-electrode ion trap (SEIT) by using Green's function method, optimized trap size, obtained the coefficients of the multipoles and analyzed ion trajectories in the RF potential. The optimized SEIT not only increases its trapping well depth by a factor of about 15, but also has relatively good linearity of the field (or large quadrupole component). The current design of SEIT can work well either as the ion guide for ion transmission or as the ion trap for ion confinement. Our research can be used to calculate the potential function in the SEIT with different device parameters, understand ion motions in the traps and optimize instrument performance. The method for calculating potential function can be expanded to planar and halo ion traps.
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