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Title: Isotope effects on desorption kinetics of hydrogen isotopes implanted into stainless steel by glow discharge

Abstract

In a fusion device the control of fuel particles implies to know the desorption rate of hydrogen isotopes by the plasma-facing materials. In this paper desorption kinetics of hydrogen isotopes implanted into type 316L stainless steel by glow discharge have been studied by experiment and numerical calculation. The temperature of a maximum desorption rate depends on glow discharge time and heating rate. Desorption spectra observed under various experimental conditions have been successfully reproduced by numerical simulations that are based on a diffusion-limited process. It is suggested, therefore, that desorption rate of a hydrogen isotope implanted into the stainless steel is limited by a diffusion process of hydrogen isotope atoms in bulk. Furthermore, small isotope effects were observed for the diffusion process of hydrogen isotope atoms. (authors)

Authors:
; ;  [1]; ;  [2]
  1. Hydrogen Isotope Research Center, University of Toyama, Gofuku, Toyama (Japan)
  2. National Institute for Fusion Science, Toki-shi, Gifu (Japan)
Publication Date:
OSTI Identifier:
22429744
Resource Type:
Journal Article
Resource Relation:
Journal Name: Fusion Science and Technology; Journal Volume: 67; Journal Issue: 3; Conference: TRITIUM 2013: 10. International Conference on Tritium Science and Technology, Nice Acropolis (France), 21-25 Oct 2013; Other Information: Country of input: France; 3 refs.
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; DESORPTION; DIFFUSION; FIRST WALL; FUEL PARTICLES; GLOW DISCHARGES; HEATING RATE; HYDROGEN ISOTOPES; ISOTOPE EFFECTS; KINETICS; STAINLESS STEEL-316L; THERMONUCLEAR DEVICES

Citation Formats

Matsuyama, M., Kondo, M., Noda, N., Tanaka, M., and Nishimura, K.. Isotope effects on desorption kinetics of hydrogen isotopes implanted into stainless steel by glow discharge. United States: N. p., 2015. Web. doi:10.13182/FST14-T57.
Matsuyama, M., Kondo, M., Noda, N., Tanaka, M., & Nishimura, K.. Isotope effects on desorption kinetics of hydrogen isotopes implanted into stainless steel by glow discharge. United States. doi:10.13182/FST14-T57.
Matsuyama, M., Kondo, M., Noda, N., Tanaka, M., and Nishimura, K.. Sun . "Isotope effects on desorption kinetics of hydrogen isotopes implanted into stainless steel by glow discharge". United States. doi:10.13182/FST14-T57.
@article{osti_22429744,
title = {Isotope effects on desorption kinetics of hydrogen isotopes implanted into stainless steel by glow discharge},
author = {Matsuyama, M. and Kondo, M. and Noda, N. and Tanaka, M. and Nishimura, K.},
abstractNote = {In a fusion device the control of fuel particles implies to know the desorption rate of hydrogen isotopes by the plasma-facing materials. In this paper desorption kinetics of hydrogen isotopes implanted into type 316L stainless steel by glow discharge have been studied by experiment and numerical calculation. The temperature of a maximum desorption rate depends on glow discharge time and heating rate. Desorption spectra observed under various experimental conditions have been successfully reproduced by numerical simulations that are based on a diffusion-limited process. It is suggested, therefore, that desorption rate of a hydrogen isotope implanted into the stainless steel is limited by a diffusion process of hydrogen isotope atoms in bulk. Furthermore, small isotope effects were observed for the diffusion process of hydrogen isotope atoms. (authors)},
doi = {10.13182/FST14-T57},
journal = {Fusion Science and Technology},
number = 3,
volume = 67,
place = {United States},
year = {Sun Mar 15 00:00:00 EDT 2015},
month = {Sun Mar 15 00:00:00 EDT 2015}
}