An Implicit Monte Carlo Method for Simulation of Impurity Transport in Divertor Plasma

Akiko Suzuki; Tomonori Takizuka; Katsuhiro Shimizu; Nobuhiko Hayashi; Akiyoshi Hatayama; Masatada Ogasawara

doi:10.1006/jcph.1996.5600

An Implicit Monte Carlo Method for Simulation of Impurity Transport in Divertor Plasma

Akiko Suzuki, Tomonori Takizuka, Katsuhiro Shimizu, Nobuhiko Hayashi, Akiyoshi Hatayama, Masatada Ogasawara

Department of Applied Physics and Physico-Informatics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

A new "implicit" Monte Carlo (IMC) method has been developed to simulate ionization and recombination processes of impurity ions in divertor plasmas. The IMC method takes into account many ionization and recombination processes during a time step Δt. The time step is not limited by a condition, Δt≪ τ_min(τ_min; the minimum characteristic time of atomic processes), which is forced to be adopted in conventional Monte Carlo methods. We incorporate this method into a one-dimensional impurity transport model. In this transport calculation, impurity ions are followed with the time step about 10 times larger than that used in conventional methods. The average charge state of impurities, 〈Z〉, and the radiative cooling rate,L(T_e), are calculated at the electron temperatureT_ein divertor plasmas. These results are compared with thosed obtained from the simple noncoronal model.

Original language	English
Pages (from-to)	193-198
Number of pages	6
Journal	Journal of Computational Physics
Volume	131
Issue number	1
DOIs	https://doi.org/10.1006/jcph.1996.5600
Publication status	Published - 1997 Feb

ASJC Scopus subject areas

Numerical Analysis
Modelling and Simulation
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)
Computer Science Applications
Computational Mathematics
Applied Mathematics

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10.1006/jcph.1996.5600

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AU - Suzuki, Akiko

AU - Takizuka, Tomonori

AU - Shimizu, Katsuhiro

AU - Hayashi, Nobuhiko

AU - Hatayama, Akiyoshi

AU - Ogasawara, Masatada

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An Implicit Monte Carlo Method for Simulation of Impurity Transport in Divertor Plasma

Abstract

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