Designing a multi-reflection time-of-flight mass analyzer for LPT

被引：13
|
作者：
Tian, Y. L. [1 ,2 ]
Wang, Y. S. [1 ]
Wang, J. Y. [1 ]
Zhou, X. H. [1 ]
Huang, W. X. [1 ]
机构：
[1] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2016年 / 408卷
基金：
中国国家自然科学基金;
关键词：
Time-of-flight mass spectrometer; Multiple-reflection; Mass measurement; Isobar separation; Exotic nuclei; PENNING TRAP; SPECTROMETRY; SEPARATOR; FACILITY;
D O I：
10.1016/j.ijms.2016.08.013
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
A new method including two sub-procedures, global search and local refine, has been developed and presented to design a multiple-reflection time-of-flight (MRTOF) mass analyzer. By using this method, a different type of MRTOF mass analyzer, in which each mirror consists of five cylindrical electrodes, has been designed for isobaric separation for Lanzhou Penning Trap (LPT). The optimal potential parameters of the electrodes have been obtained and the maximal resolving power has been achieved to be 1.3 x 10(5) with a total time-of-flight of 6.5 ms for an ion species of Ar-40(1+). The simulation shows that the inaccuracy of the potentials applied to the mirror electrodes must be less than 50 ppm or preferably 20 ppm. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：28 / 32
页数：5
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