Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Application of the Binary Interaction Approximation to Plasma Oscillation
Shun-ichi OIKAWATakanori KAMEIMasaki GOTO
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2012 Volume 7 Pages 2401101


The BIA (Binary Interaction Approximation) formulation in the presence of neutralizing immovable background ion is presented for analysis of multiple electron motion. Such a BIA scheme is applied to electrons in plasmas. A test calculation shows that 1) the plasma oscillation and its frequency are successfully detected, 2) the CPU time for the BIA are less than 1.5 sec and 1 hour for two and three dimensional analysis, while 127 sec and 13 hours for the direct integration method (DIM) by using a Runge-Kutta-Fehlberg integrator with an absolute error tolerance of 10−16, and 3) the number of time steps for the DIM, in such a case, are as many as 5.8 × 104 and 3.6 × 106, while those for the BIA are only 256 and 512.

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© 2012 by The Japan Society of Plasma Science and Nuclear Fusion Research
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