Spatially resolved transport data for electrons in gases: definition, interpretation and calculation

Dujko, S., White, Ronald, Raspopović, Z.M., and Petrović, Z.Lj. (2012) Spatially resolved transport data for electrons in gases: definition, interpretation and calculation. Nuclear Instruments & Methods in Physics Research Section B, 279. pp. 84-91.

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Abstract

The spatiotemporal evolution of electron swarms in the presence of electric and magnetic fields is investigated to facilitate understanding temporal and spatial non-locality in low-temperature plasmas. Using two independent techniques, a multi-term solution of Boltzmann's equation and a Monte Carlo simulation technique, the synergism of an applied magnetic field and non-conservative collisions (ionization and/or electron attachment) is demonstrated as a means to control the non-locality of relaxation processes. In particular, oscillatory features in the spatial and temporal profiles are demonstrated, and shown to be enhanced or suppressed through the magnetic field strength, the angle between the electric and magnetic fields, and the degree of ionization. Finally we discuss the impact of field configurations and strengths on the transport properties, highlighting the distinctions in the measured transport properties between various experimental configurations when non-conservative processes are present.

Item ID: 22307
Item Type: Article (Research - C1)
ISSN: 1872-9584
Keywords: electron swarms, transport properties, Boltzmann equation, Monte Carlo simulation
Additional Information:

This paper appears in the special issue: Proceedings of the Fifth International Conference on Elementary Processes in Atomic Systems Belgrade, Serbia, 21-25 June 2011 edited by Bratislav Marinković and Károly Tőkési.

Date Deposited: 11 Jul 2012 09:37
FoR Codes: 02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020201 Atomic and Molecular Physics @ 80%
02 PHYSICAL SCIENCES > 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics > 020204 Plasma Physics; Fusion Plasmas; Electrical Discharges @ 20%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970102 Expanding Knowledge in the Physical Sciences @ 100%
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