NIFS-PROC-47

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Author(s):

岡本正雄、村上定義、中島徳嘉、汪衛生
M. Okamoto, S. Murakami, N. Nakajima and W.X. Wang

Title:

プラズマ物理におけるモンテカルロシミュレーション
Monte Carlo Simulations for Plasma Physics

Date of publication:

July 2000

Key words:

Monte Carlo simulation, collisional process, NBI, cyclotron heating, energetic particles, neoclassical transport, radial electric field, steep gradient

Abstract:

Plasma behaviours are very complicated and the analyses are generally difficult. However, when the collisional processes play an important role in the plasma behaviour, the Monte Carlo method is often employed as a useful tool. For examples, in neutral particle injection heating (NBI heating), electron or ion cyclotron heating, and alpha heating, Coulomb collisions slow down high energetic particles and pitch angle scatter them. These processes are often studied by the Monte Carlo technique and good agreements can be obtained with the experimental results. Recently, Monte Carlo Method has been developed to study fast particle transports asssociated with heating and generating the radial electric field. Further it is applied to investigating the neoclassioal transport in the plasma with steep gradients of density and temperatures which is beyong the conventional neoclassical theory. In this report, we briefly summarize the researches done by the present authors utilizing the Monte Carlo method.

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