A review of late-stage tungsten fuzz growth
JAR Wright - Tungsten, 2022 - Springer
Tungsten will be used as the plasma-facing divertor material in the International
Thermonuclear Experimental Reactor (ITER) fusion reactor. Under high temperatures and …
Thermonuclear Experimental Reactor (ITER) fusion reactor. Under high temperatures and …
Isolated nano-tendril bundles on tungsten surfaces exposed to radiofrequency helium plasma
The DIONISOS experiment is used to study the impact of RF helium (He) plasma on the
surface morphology of tungsten (W) at a frequency of 13.56 MHz. Helium ion energy …
surface morphology of tungsten (W) at a frequency of 13.56 MHz. Helium ion energy …
Helium effects on tungsten surface morphology and deuterium retention
Recent experimental results on tungsten surface morphology, especially nano-structure
(fuzz), induced by helium plasma exposure at temperatures between 1000 K and 2000 K are …
(fuzz), induced by helium plasma exposure at temperatures between 1000 K and 2000 K are …
The influence of low-energy helium plasma on bubble formation in micro-engineered tungsten
E Gao, W Nadvornick, R Doerner… - Journal of Nuclear …, 2018 - Elsevier
Four different types of micro-engineered tungsten surfaces were exposed to low energy
helium plasma, with a planar surface as control. These samples include two surfaces …
helium plasma, with a planar surface as control. These samples include two surfaces …
Flux threshold measurements of He-ion beam induced nanofuzz formation on hot tungsten surfaces
We report measurements of the energy dependence of flux thresholds and incubation
fluences for He-ion induced nano-fuzz formation on hot tungsten surfaces at UHV conditions …
fluences for He-ion induced nano-fuzz formation on hot tungsten surfaces at UHV conditions …
Nanochannel structures in W enhance radiation tolerance
Developing high performance plasma facing materials (PFMs) is one of the greatest
challenges for fusion reactors, because PFMs face unprecedented harsh environments …
challenges for fusion reactors, because PFMs face unprecedented harsh environments …
TEM analysis of high temperature annealed W nanostructure surfaces
Helium plasma irradiation and electron heating experiments were conducted using tungsten
in the divertor simulator NAGDIS-II. Helium plasma irradiation to tungsten led to the …
in the divertor simulator NAGDIS-II. Helium plasma irradiation to tungsten led to the …
Material migration in W and Mo during bubble growth and fuzz formation
Growth of helium (He) induced bubbles and fuzz in tungsten (W) and molybdenum (Mo) is
investigated using samples of W films on Mo substrates and Mo films on W substrates …
investigated using samples of W films on Mo substrates and Mo films on W substrates …
Recovery of tungsten surface with fiber-form nanostructure by the argon plasma irradiation at a high surface temperature
S Takamura, T Miyamoto - Plasma and Fusion Research, 2011 - jstage.jst.go.jp
One of the serious concerns for tungsten materials in fusion devices is the radiation defects
caused by helium plasma irradiation, while the helium is one of fusion products. Fiber …
caused by helium plasma irradiation, while the helium is one of fusion products. Fiber …
Morphological changes of tungsten surfaces by low-flux helium plasma treatment and helium incorporation via magnetron sputtering
The effect of helium on the tungsten microstructure was investigated first by exposure to a
radio frequency driven helium plasma with fluxes of the order of 1× 1019 m–2 s–1 and …
radio frequency driven helium plasma with fluxes of the order of 1× 1019 m–2 s–1 and …