期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 91, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5131582
关键词
-
资金
- German Ministry for Education and Research (BMBF) [05P18HGCIA]
Repeated switching of electric potentials within a single experimental cycle is introduced for a multi-reflection time-of-flight mass spectrometer (also known as an electrostatic ion beam trap) in order to eject different ion species after different storage times. The method is demonstrated with two cluster ions with considerably different mass-to-charge ratios (the A = 624 and 832 isotopologues of Pb3+ and Pb4+, respectively) for the specific case where the sequential ejections result in an identical number of revolution periods. Thus, the ions' flight lengths are identical, and the resulting time-of-flight values allow single-reference mass determination. The requirements for the switching time window are studied in detail. For the present system and ion pair, the relative mass uncertainty is found to be 3 10(-7) for short measurements (approximate to 10 min) and 6 10(-8) for longer ones (approximate to 2 h). Published under license by AIP Publishing.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据