Journal ArticleDOI
Enhanced modification of tungsten surface by nanostructure formation during high flux deuterium plasma exposure
TLDR
In this paper, the morphology changes induced by low energy deuterium ions on tungsten surfaces are studied for particle fluxes similar to those expected in the ITER divertor, as high as 1024 m−2 s−1.About:
This article is published in Journal of Nuclear Materials.The article was published on 2014-04-01. It has received 36 citations till now. The article focuses on the topics: Fluence & Divertor.read more
Citations
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Journal ArticleDOI
The influence of plasma-surface interaction on the performance of tungsten at the ITER divertor vertical targets
Journal ArticleDOI
Deuterium retention and morphological modifications of the surface in five grades of tungsten after deuterium plasma exposure
TL;DR: In this paper, five tungsten (W) grades were simultaneously exposed to deuterium (D) plasma with 10 20 −D/(m 2 ǫs) of 38 eV/D up to 10 26 ÂD/m 2 at 500 k specimen temperature.
Journal ArticleDOI
Deuterium occupation of vacancy-type defects in argon-damaged tungsten exposed to high flux and low energy deuterium plasma
Xiu-Li Zhu,Ying Zhang,Long Cheng,Yue Yuan,Gregory De Temmerman,Baoyi Wang,Xingzhong Cao,Guang-Hong Lu +7 more
TL;DR: Doppler broadening spectroscopy in the positron annihilation technique (DBS-PA) has been employed to investigate the defect properties in argon-damaged tungsten exposed to low-energy and high flux deuterium plasma as discussed by the authors.
Journal ArticleDOI
Subsurface deuterium bubble formation in W due to low-energy high flux deuterium plasma exposure
TL;DR: In this paper, the deuterium (D) bubbles formed in W exposed to high flux D plasma were researched by scanning electron microscopy and transmission electron microscope, and a layer of nano-sized bubbles were homogenously distributed in W subsurface region.
Journal ArticleDOI
Blistering on tungsten surface exposed to high flux deuterium plasma
TL;DR: In this article, the authors investigated the blistering behavior of tungsten surfaces exposed to very high fluxes (1−2−1024/m2/s) of low energy (38−eV) deuterium plasmas.
References
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Journal ArticleDOI
Interaction of positron beams with surfaces, thin films, and interfaces
Peter J. Schultz,Kelvin G. Lynn +1 more
TL;DR: In this article, a review of advances in the study of solid surfaces and thin films using variable-energy positron beams is presented, with more emphasis on the most recent measurements and interpretations than on the chronology of various developments.
Journal ArticleDOI
Tungsten as material for plasma-facing components in fusion devices
TL;DR: In this paper, the use of tungsten (W) as material for plasma-facing components (PFM) in fusion devices is reviewed with respect to its plasma and material compatibility under burning plasmas conditions.
Proceedings ArticleDOI
Analysis of positron profiling data by means of ‘‘VEPFIT’’
TL;DR: In this paper, the authors presented a semi-linear fitting procedure for the Doppler broadening parameter S and the positronium fraction F vs the energy of the incident positrons.
Journal ArticleDOI
Hydrogen bubbles in metals
J.B. Condon,T. Schober +1 more
TL;DR: In this paper, a review of hydrogen bubble formation in metals is presented, focusing on those areas of bubble formation where the distinct chemical character of hydrogen is important, and a distinction is made between nucleation and subsequent cavity growth mechanisms.
Journal ArticleDOI
Tungsten surface evolution by helium bubble nucleation, growth and rupture
TL;DR: In this article, molecular dynamics simulations reveal sub-surface mechanisms likely involved in the initial formation of nanometre-sized?fuzz? in tungsten exposed to low-energy helium plasmas.