Improved theoretical approximation for the ion drag force in collisionless plasma with strong ion-grain coupling

Khrapak, S. A.; Nosenko, V.; Morfill, G. E.; Merlino, R.
April 2009
Physics of Plasmas;Apr2009, Vol. 16 Issue 4, p044507
Academic Journal
We point out a deficiency in our previous analytic calculation of the ion drag force for conditions of the experiment by Nosenko et al. [Phys. Plasmas 14, 103702 (2007)]. An inaccurate approximation is corrected and the ion drag force is recalculated. The improved model yields better overall agreement with the experimental results as compared to the original calculation.


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