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Title: Monte Carlo calculations of drift velocities and diffusion coefficients of Ar+ ions in helium
Authors: Barata, J. A. S. 
Conde, C. A. N. 
Keywords: Ion mobility; Diffusion coefficients; Monte Carlo simulation; Ion transport in gases
Issue Date: 2007
Citation: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 580:1 (2007) 18-21
Abstract: Results are presented for the calculated drift velocities and diffusion coefficients for Ar+ ions in helium at atmospheric pressure, temperature T=300 K and for reduced electric fields E/N from about 1 Td up to about 150 Td, using Monte Carlo techniques. The drift velocities range from 5.94×103 to 559.0×103 cm s-1 for the Ar+ ions in the ground state 2P3/2 and from 5.85×103 to 545.0×103 cm s-1 for the Ar+ ions in the metastable excited state 2P1/2. These values are in good agreement (within about 5%) with the few experimental values available. The mobilities and diffusion coefficients for atomic Ar+ ions in helium gas show no significant dependence on the spin state of the ion.
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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