Coupled IMPGYRO-EDDY simulation of tungsten impurity transport in tokamak geometry

M. Toma, K. Hoshino, K. Inai, M. Furubayashi, Akiyoshi Hatayama, K. Ohya

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We are developing a Monte Carlo transport code, 'IMPGYRO' for high-Z impurities. The code includes most of important process of high-Z impurities: (1) the finite Larmor radius effect in realistic tokamak geometries, (2) Coulomb collision of impurity ions with background ions and (3) multi-step ionization/recombination process. In this study, the IMPGYRO code is coupled to the EDDY code to improve the impurity generation model. The coupled code has been applied to the analysis of tungsten in a typical detachment state and has output the initial results. The code more precisely takes into account the effect of re-emission (reflection and self-sputtering). The resultant density inside the core becomes about two times larger than that with the previous simple impurity generation model. These initial results show that the coupling the IMPGYRO-EDDY code makes it possible to analyze not only the large-scale transport process of high-Z impurities in a realistic tokamak geometry, but also their re-emission process on the material surface more correctly.

Original languageEnglish
Pages (from-to)207-210
Number of pages4
JournalJournal of Nuclear Materials
Volume390-391
Issue number1
DOIs
Publication statusPublished - 2009 Jun 15

Fingerprint

Tungsten
tungsten
Impurities
impurities
Geometry
geometry
simulation
Ions
Coulomb collisions
Larmor radius
Ionization
Sputtering
detachment
ions
sputtering
ionization
output

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Toma, M., Hoshino, K., Inai, K., Furubayashi, M., Hatayama, A., & Ohya, K. (2009). Coupled IMPGYRO-EDDY simulation of tungsten impurity transport in tokamak geometry. Journal of Nuclear Materials, 390-391(1), 207-210. https://doi.org/10.1016/j.jnucmat.2009.01.169

Coupled IMPGYRO-EDDY simulation of tungsten impurity transport in tokamak geometry. / Toma, M.; Hoshino, K.; Inai, K.; Furubayashi, M.; Hatayama, Akiyoshi; Ohya, K.

In: Journal of Nuclear Materials, Vol. 390-391, No. 1, 15.06.2009, p. 207-210.

Research output: Contribution to journalArticle

Toma, M, Hoshino, K, Inai, K, Furubayashi, M, Hatayama, A & Ohya, K 2009, 'Coupled IMPGYRO-EDDY simulation of tungsten impurity transport in tokamak geometry', Journal of Nuclear Materials, vol. 390-391, no. 1, pp. 207-210. https://doi.org/10.1016/j.jnucmat.2009.01.169
Toma, M. ; Hoshino, K. ; Inai, K. ; Furubayashi, M. ; Hatayama, Akiyoshi ; Ohya, K. / Coupled IMPGYRO-EDDY simulation of tungsten impurity transport in tokamak geometry. In: Journal of Nuclear Materials. 2009 ; Vol. 390-391, No. 1. pp. 207-210.
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