3-DIMENSIONAL SIMULATION OF CHARGED-PARTICLE BEAM TRAJECTORIES IN RADIO-FREQUENCY ELECTRIC-FIELD OF A QUADRUPOLE MASS-SPECTROMETER

被引：3

作者：

YOSHINARI, K ^{[1
]}

OSE, Y ^{[1
]}

NAKJIMA, F ^{[1
]}

机构：

[1] HITACHI LTD,DIV INSTRUMENT,KATSUTA,IBARAKI,JAPAN

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1995年 / 363卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(95)00266-9

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A numerical simulation method for ion trajectory analysis in a three-dimensional radio frequency electric field is developed. The present method is based on the boundary element method (BEM) to calculate the electric field and the high-order Runge-Kutta method (Shanks method) to trace ion trajectories with high numerical accuracy. In order to reduce computational memory and time while maintaining computational accuracy, the interpolative functions of the BEM and the integration method of the equation of ion motion are discussed in detail. Ion trajectories at the entrance part of the quadrupole field are successfully simulated using the proposed method. The influence of the ion beam focusing position on the transmission efficiency at the entrance part is evaluated with the results.

引用

页码：429 / 434

页数：6