Journal
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
Volume 23, Issue 2, Pages 397-406Publisher
SPRINGER
DOI: 10.1007/s13361-011-0290-x
Keywords
Simulation; SIMION; FEM; Comsol; CFD; Particle tracing; Electro dynamics
Funding
- German Research Foundation (DFG) [BE 2124/6-1, BE 2124/4-1]
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Results obtained with two computational approaches for the simulation of ion motion at elevated pressure are compared with experimentally derived ion current data. The computational approaches used are charged particle tracings with the software package SIMION ver. 8 and finite element based calculations using the software package Comsol Multiphysics ver. 4.0/4.0a. The experimental setup consisted of a tubular corona discharge ion source coupled to a cylindrical measurement chamber held at atmospheric pressure. Generated ions are flown into the chamber at essentially subsonic laminar isothermal conditions. In the simulations, strictly stationary conditions were assumed. The results show very good agreement between the SIMION/SDS model and experimental data. For the Comsol model, only qualitative agreement is observed.
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