RESONANCE EXCITATION OF IONS STORED IN A QUADRUPOLE ION-TRAP .4. THEORY OF QUADRUPOLAR EXCITATION

被引：43

作者：

ALFRED, RL

LONDRY, FA

MARCH, RE

机构：

[1] TRENT UNIV,DEPT CHEM,PETERBOROUGH K9J 7B8,ONTARIO,CANADA

[2] TRENT UNIV,DEPT PHYS,PETERBOROUGH K9J 7B8,ONTARIO,CANADA

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1993年 / 125卷 / 2-3期

关键词：

QUADRUPOLE ION TRAP; RESONANCE EXCITATION; PERTURBATION THEORY; STORED IONS; RESONANT FREQUENCIES;

D O I：

10.1016/0168-1176(93)80040-L

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 theoretical treatment is presented for quadrupolar resonance excitation of ions stored in a quadrupole ion trap. When the ratio of the tickle voltage amplitude to that of the drive potential is small, the equation of ion motion can be expressed in the form of a perturbation series. Exact and approximate solutions to the first-order perturbation equations are presented. Ion trajectories calculated from these solutions are compared with those calculated by numerical integration. The resonance conditions were found to correspond to a series of angular frequencies given by omega(u,n) = \n + beta(u)\ - infinity < n < infinity. Some of these, beta(z)OMEGA, (1 + beta(z))OMEGA(1 - beta(z))OMEGA and beta(r)OMEGA, had been observed previously in simulation studies.

引用

页码：171 / 185

页数：15

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