Recent developments in ion detection techniques for Penning trap mass spectrometry at TRIGA-TRAP
Recent developments in ion detection techniques for Penning trap mass spectrometry at TRIGA-TRAP
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TRIGA-TRAP 潘宁阱质谱离子检测技术的最新进展
DOI：
10.1140/epja/i2008-10711-6
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
S. Ulmer
中科院分区：
文献类型：
--
作者：
J. Ketelaer;K. Blaum;M. Block;K. Eberhardt;M. Eibach;R. Ferrer;S. George;F. Herfurth;J. Ketter;S. Nagy;J. Repp;L. Schweikhard;C. Smorra;S. Sturm;S. Ulmer
彭宁阱质谱法测定原子核和原子质量的精度最高。质量值是通过测量所储存的带电粒子的回旋频率得到的。Penning阱质谱计TRIGA-TRAP采用两种不同的方法来测定质量：破坏性飞行时间离子回旋共振（TOF-ICR）技术和非破坏性傅立叶变换离子回旋共振（FT-ICR）方法。描述了这两种技术的新发展，这将提高TOF-ICR的检测效率和抑制污染。FT-ICR探测系统一方面允许对来自放射性束流设施的入射离子束进行调查，另一方面允许在Penning阱中检测单个单电荷离子。
The highest precision in the determination of nuclear and atomic masses can be achieved by Penning trap mass spectrometry. The mass value is obtained through a measurement of the cyclotron frequency of the stored charged particle. Two different approaches are used at the Penning trap mass spectrometer TRIGA-TRAP for the mass determination: the destructive Time-Of-Flight Ion Cyclotron Resonance (TOF-ICR) technique and the non-destructive Fourier Transform Ion Cyclotron Resonance (FT-ICR) method. New developments for both techniques are described, which will improve the detection efficiency and the suppression of contaminations in the case of TOF-ICR. The FT-ICR detection systems will allow for the investigation of an incoming ion bunch from a radioactive-beam facility on the one hand, and for the detection of a single singly charged ion in the Penning trap on the other hand.