Significant growth of vacancy-type defects by post-irradiation annealing in neon ion-irradiated tungsten probed by a slow positron beam
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DOI: 10.1016/j.jnucmat.2020.152018
Abstract: Abstract Irradiation damage and its evolution in noble gas ion-irradiated tungsten have not been investigated in detail other than in the case of helium ion irradiation. In this study, irradiation-induced vacancy-type defects in helium ion-… read more here.
Keywords: irradiation; vacancy type; ion; ion irradiated ... See more keywords
Short positron lifetime at vacancies observed in electron-irradiated tungsten: Experiments and first-principles calculations
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DOI: 10.1016/j.jnucmat.2020.152473
Abstract: Abstract A positron lifetime component of ∼ 170 ps has been reported for irradiated tungsten (W) in some studies. This value is considerably shorter than that calculated for isolated monovacancies ( ∼ 200 ps). In this study, positron annihilation lifetime… read more here.
Keywords: positron; electron irradiated; positron lifetime; lifetime ... See more keywords
Elemental Characterization of Neutron-Irradiated Tungsten Using the GD-OES Technique
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DOI: 10.1080/15361055.2019.1612659
Abstract: Abstract In reactor-relevant fusion divertor conditions, tungsten (W) will be used as an armor material due to its excellent thermal properties. It will be exposed to impurities from numerous sources, including ion implantation and mixing,… read more here.
Keywords: oes technique; tungsten using; characterization neutron; elemental characterization ... See more keywords
Penetration of deuterium into neutron-irradiated tungsten under plasma exposure
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DOI: 10.1088/1402-4896/ac2c20
Abstract: Hydrogen isotope trapping at lattice defects in neutron-irradiated tungsten (W), a leading candidate as plasma facing material, is an important problem determining tritium (T) inventory in a vacuum vessel of a future fusion reactor. In… read more here.
Keywords: penetration; exposure; plasma exposure; neutron irradiated ... See more keywords
Structural Modification and Erosion of Plasma-Irradiated Tungsten and Molybdenum Surfaces
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DOI: 10.1134/s1063784220030202
Abstract: Abstract Data for the structural modification and erosion of plasma-irradiated tungsten and molybdenum surfaces are reported. It has been found that the irradiated specimen surface shows a relief due to nonuniform etching. It has been… read more here.
Keywords: plasma; tungsten molybdenum; molybdenum surfaces; erosion ... See more keywords