›› 2012, Vol. 32 ›› Issue (4): 71-76.doi: 10.3780/j.issn.1000-758X.2012.04.010

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Numerical Simulation Analysis of Space Plasma Detector Based on SIMION

Kong Linggao1,2,Zhang Aibing1,2,Wang Shijin1,Sun Yueqiang1,Zheng Xiangzhi1,Dong Yongjin1   

  1.  (1 Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190)(2 Graduate University of Chinese Academy of Sciences, Beijing 100049)
  • Received:2011-12-29 Revised:2012-02-29 Online:2012-08-25 Published:2012-08-25

Abstract: The space plasma detector is a kind of cylindrical electrostatic analyzer with the field of view larger than 320° and the capability of measuring the plasma of 10eV~30keV. The basic parameters of the plasma detector, such as the electrostatic analyzer factor, energy resolution and the relationship between the deflection factor and the deflection angle, were simulated by the software SIMION. The particle source for the simulation was constructed by the method of uniform random sample. The simulation results fit well with the calibration results. The error between the simulation and the calibration on the parameters of electrostatic factor and energy resolution are 3.2% and 1.5%, respectively. The correlation coefficient between the simulation and the calibration on the relationship of deflection angle and deflection factor is 0.9994. he simulation results show that it can be applied well in the process of plasma instrument design and calibration.

Key words: Space plasma detector, Electrostatic analyzer, Numerical simulation