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Interaction ion‐surface : simulation de l'interaction plasma‐paroi (ITER)

Pierre Salou 1
1 MADIR - Matériaux, Défauts et IRradiations
CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique
Abstract : The wall materials of magnetic confinement in fusion machines are exposed to an aggressive environment; the reactor blanket is bombarded with a high flux of particles extracted from the plasma, leading to the sputtering of surface material. This sputtering causes wall erosion as well as plasma contamination problems. In order to control fusion reactions in complex reactors, it is thus imperative to well understand the plasma-wall interactions. This work proposes the study of the sputtering of fusion relevant materials. We propose to simulate the charged particles influx by few keV single-charged ion beams. This study is based on the catcher method; to avoid any problem of pollution (especially in the case of carbon) we designed a new setup allowing an in situ Auger electron spectroscopy analysis. The results provide the evolution of the angular distribution of the sputtering yield as a function of the ion mass (from helium to xenon) and its energy (from 3 keV to 9 keV).
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https://tel.archives-ouvertes.fr/tel-00915747
Contributor : Pierre Salou <>
Submitted on : Monday, December 9, 2013 - 12:09:13 PM
Last modification on : Thursday, January 14, 2021 - 9:46:23 AM
Long-term archiving on: : Sunday, March 9, 2014 - 11:00:10 PM

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  • HAL Id : tel-00915747, version 1

Citation

Pierre Salou. Interaction ion‐surface : simulation de l'interaction plasma‐paroi (ITER). Science des matériaux [cond-mat.mtrl-sci]. Université de Caen, 2013. Français. ⟨tel-00915747⟩

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