The rotating-saddle trap: a mechanical analogy to RF-electric-quadrupole ion trapping?
The rotating-saddle trap: a mechanical analogy to RF-electric-quadrupole ion trapping?
复制标题
旋转鞍座陷阱：射频电四极离子捕获的机械类比？
DOI：
10.1139/p02-110
复制
发表时间：
2002
影响因子：
1.2
通讯作者：
M. G. Ball
中科院分区：
文献类型：
--
作者：
R. Thompson;T. Harmon;M. G. Ball
旋转鞍势球轴承阱长期以来一直被用作解释保罗型rf电四极离子阱工作原理的力学模拟。本文概述了这种类比的缺点，并解释了该系统如何以及为什么仍然是解释离子阱操作的优秀工具。本文给出了旋转鞍形阱的基本工作原理，与保罗阱不同，旋转鞍形阱在无摩擦状态下是解析可解的。此外，还提出了对这一理论的一些扩展，以检验摩擦等效应。这些结果与Paul-Trap理论的等效结果以及卡尔加里大学构建的旋转鞍阱的实验结果进行了比较。这个陷阱的技术细节，无论是讲座演示或教学实验室实验的优秀工具，也提出了，以及一些评论建立这样的陷阱。PACS编号：45.50-j, 01.50Pa, 32.80Pj
The rotating-saddle potential ball-bearing trap has long been used as a mechanical analogue to explain the operating principles of the Paul-type RF-electric-quadrupole ion trap. This paper outlines the shortcomings of this analogy, as well as explaining how and why this system remains an excellent tool for explaining ion-trap operation. The basic theory of the operating principles of the rotating-saddle trap is provided, which, unlike the Paul Trap is analytically solvable in the friction-free regime. In addition, some extensions to this theory are presented to examine such effects as friction. These results are compared with the equivalent results for Paul-Trap theory, as well as to experimental results measured with a rotating-saddle trap constructed at the University of Calgary. The technical details of this trap, an excellent tool for either lecture demonstrations or teaching laboratory experiments, are also presented, as well as some comments on building such a trap. PACS Nos.: 45.50-j, 01.50Pa, 32.80Pj