Abstract: In this paper we present a double-time-scale cloud-in-cell (CIC) algorithm for simulation of plasmas which reduce by half-quarter computational cost of standard CIC methods. The algorithm is integrating electrons by small time steps and integrating ions by large steps. The algorithm have been used in one and a half-dimensional CIC scheme. The results of theoretic analysis and simulation support the stability and correctness of the algorithm.

Key words: double-time-scale, plasma, cloud-in-cell simulation