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Dynamic Models for Plasma‐Wall Interactions
Author(s) -
Pigarov A.Yu.,
Krstic P.,
Krasheninnikov S.I.,
Doerner R.,
Rognlien T.D.
Publication year - 2012
Publication title -
contributions to plasma physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0863-1042
DOI - 10.1002/ctpp.201210035
Subject(s) - sublimation (psychology) , sputtering , plasma , kinetic monte carlo , molecular dynamics , statistical physics , multiscale modeling , physics , monte carlo method , fusion , materials science , chemical physics , nanotechnology , chemistry , nuclear physics , thin film , computational chemistry , psychology , statistics , mathematics , linguistics , philosophy , quantum mechanics , psychotherapist
In theory and modeling of plasma‐wall interactions, very different spatial and temporal scales need to be resolved. Hierarchy of material models (e.g. macroscopic transport, Kinetic Monte Carlo, Molecular Dynamics, and quantum models) used in fusion applications is reviewed and a way of their integration is highlighted. Physics background, theory and applications of macroscopic transport models, which are the main focus of the paper, are thoroughly discussed. The results on self‐consistent macroscopic modeling of major physics phenomena, e.g. hydrogen recycling, retention, chemistry, chemical sputtering, and radiation enhanced sublimation for fusion related materials are presented. An example of coupled plasma and material transport simulations is given. The results on Molecular Dynamics modeling of deuterium irradiation of carbon leading to formation of supersaturated surfaces and chemical sputtering are presented (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)