Abstract

A number of experiments show that helium plasma constructs filament (fuzz) structures whose diameter is in nanometer-scale on the tungsten material under the suitable experimental condition. In this paper, binary-collision-approximation-based simulation is performed to reveal the mechanism and the conditions of fuzz formation of tungsten material under plasma irradiation. The irradiation of the plasma of hydrogen, deuterium, and tritium, and also the plasma of noble gas such as helium, neon, and argon atoms are investigated. The possibility of fuzz formation is discussed on the simulation result of penetration depth of the incident atoms.

Details

Title
Binary-collision-approximation simulation for noble gas irradiation onto plasma facing materials
Author
Saito, Seiki 1 ; Nakamura, Hiroaki 2 ; Takayama, Arimichi 3 ; Ito, Atsushi M 3 

 Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Toki, Gifu 509-5292, Japan; Present address: Department of Electrical Engineering, Kushiro National College of Technology, Otanoshike-Nishi 2-32-1, Kushiro-Shi, Hokkaido, Japan 
 Department of Energy Engineering and Science, Graduate School of Engineering, Nagoya University, Toki, Gifu 509-5292, Japan; Fundamental Physics Simulation Research Division, National Institute for Fusion Science, Toki, Gifu 509-5292, Japan; Present address: Department of Electrical Engineering, Kushiro National College of Technology, Otanoshike-Nishi 2-32-1, Kushiro-Shi, Hokkaido, Japan 
 Fundamental Physics Simulation Research Division, National Institute for Fusion Science, Toki, Gifu 509-5292, Japan 
Publication year
2014
Publication date
Mar 2014
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2576608126
Copyright
© 2014. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.