IMPROVEMENT OF THE ELECTRIC-FIELD IN THE CYLINDRICAL TRAPPED-ION CELL

被引：24
|
作者：
NAITO, Y [1 ]
FUJIWARA, M [1 ]
INOUE, M [1 ]
机构：
[1] UNIV ELECTROCOMMUN,DEPT APPL PHYS & CHEM,CHOFU,TOKYO 182,JAPAN
来源：
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1992年 / 120卷 / 03期
关键词：
ION TRAP; CELL DESIGN; ELECTRIC FIELD EFFECTS; THEORETICAL ANALYSIS;
D O I：
10.1016/0168-1176(92)85047-4
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：
This paper reports improvement of the electric field in the cylindrical Fourier transform ion cyclotron resonance (FT-ICR) trapped-ion cell. We have designed a cell in which the trapping plates of the conventional cell are replaced by three pairs of electrodes with circular apertures of different radii and the potential applied to each pair of electrodes is independently controlled. Theoretical analysis of the electric fields in both the conventional and improved cells has been made. Experimental results on the drift motion of ions due to the inhomogeneity of electric field are presented. Comparison between the conventional and the improved cell demonstrates a significant increase in the uniformity of the electric field. Enhancement of the signal intensity and resolution in the FT-ICR spectrum is observed.
引用
收藏
页码：179 / 192
页数：14
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