Ion funnels, quadrupole, and multipole are well-known ion optic methods for transportation of ions. However, the methods are suitable for pressures below 30–40 Torr. The main loss of ions occurs in an inlet of mass spectrometer at atmospheric pressure. This work offers a focusing system, which employs a fine-structure electrode ion carpet. The focusing efficiency of fine-structure electrode was investigated by computer simulation methods and it was compared with theoretical estimation. The methods demonstrated good agreement with each other that promises a reliability of results. The authors found an optimal fine-structure electrode ion carpet configuration (electrodes width of 10 µm), which demonstrates suitable focusing efficiency and can be implemented in practice.

中文翻译：

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通过模拟射频地毯在大气压下传输离子的研究

离子漏斗、四极杆和多极杆是众所周知的离子传输离子光学方法。然而，这些方法适用于低于 30-40 Torr 的压力。离子的主要损失发生在大气压下的质谱仪入口处。这项工作提供了一个聚焦系统，它采用了精细结构的电极离子毯。采用计算机模拟方法研究了精细结构电极的聚焦效率，并与理论估计值进行了比较。这些方法彼此间表现出良好的一致性，保证了结果的可靠性。作者发现了一种最佳的精细结构电极离子毯配置（电极宽度为 10 µm），它展示了合适的聚焦效率并且可以在实践中实施。