Based on a theoretical argument from fundamental kinetic theory, by way of simple worked examples, and through the use of particle-in-cell simulations of capacitively coupled plasmas, we demonstrate that conventional methods for calculating the momentum transfer collision frequency in low-pressure plasmas can be seriously erroneous. This potentially plays an important and previously unconsidered role in many low-pressure discharges, and at least in part provides a possible explanation for anomalous behaviour often encountered in these plasmas.
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Brief Report| December 27 2013
“Anomalous” collisionality in low-pressure plasmas
M. M. Turner;
T. Lafleur, P. Chabert, M. M. Turner, J. P. Booth; “Anomalous” collisionality in low-pressure plasmas. Phys. Plasmas 1 December 2013; 20 (12): 124503. https://doi.org/10.1063/1.4859155
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