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

Research output: Contribution to journalArticle

7 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≪ τminmin; 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(Te), are calculated at the electron temperatureTein divertor plasmas. These results are compared with thosed obtained from the simple noncoronal model.

Original languageEnglish
Pages (from-to)193-198
Number of pages6
JournalJournal of Computational Physics
Volume131
Issue number1
DOIs
Publication statusPublished - 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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    Suzuki, A., Takizuka, T., Shimizu, K., Hayashi, N., Hatayama, A., & Ogasawara, M. (1997). An Implicit Monte Carlo Method for Simulation of Impurity Transport in Divertor Plasma. Journal of Computational Physics, 131(1), 193-198. https://doi.org/10.1006/jcph.1996.5600