空间探测用线性离子阱小型化设计及仿真

Miniaturization Design and Simulation of Linear Ion Trap for Space Exploration

随着空间探测技术的发展,对火星、月球等星体表面土壤成分分析以及生命物质探寻已成为未来空间探测的重要目标。利用小型化质谱计原位探测外星球地表以及地下物质组成是研究的重要内容之一,NASA、ESA等都于近年来开始了离子阱质谱技术的研究以及空间应用。随着我国深空探测活动和空间科学实验的快速推进,对发展小型化、低质量、低功耗的离子阱质谱技术也提出了迫切需求。基于对线性离子阱的基本原理,对空间探测用小型化线性离子阱的相关参数进行设计,并利用SIMION软件进行了初步的模拟仿真和验证。结果表明,小型化后的线性离子阱能够满足基本的质谱分析要求,为空间探测用线性离子阱的研制提供了必要的设计依据。

With the development of space exploration technology,the analysis of soil composition on the surface of stars such as Mars and the Moon and the exploration of living matter have become important targets of space exploration in the future.The use of miniaturized mass spectrometers to detect the surface of the outer planet and the composition of the subsurface material in situ is one of the important research methods.In particular,NASA and ESA have begun research and space applications of ion trap mass spectrometry in recent years.With the rapid advancement of deep space exploration activities and space science experiments in China,there is an urgent need for the development of miniaturized,low-quality,low-power ion trap mass spectrometry.The basic principles and related parameters of the linear ion trap are designed.The preliminary simulation and verification are carried out by using SIMION software.The results show that the miniaturized linear ion trap can meet the basic mass spectrometry requirements.It provides the necessary design basis for the development of linear ion trap for space exploration.