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Showing 1 to 11 of 11 for “"Plasma Facing Components (PFCs)"”.
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Characterization of Liquid Metal Free Surface Response to an Electromagnetic Impulse and Implications for Future Nuclear Fusion Devices
… (LMs) are compelling candidates for use as plasma facing components (PFCs) in fusion devices to mitigate heat loading, limit damage due to erosion, and possibly breed tritium. When used as electrodes, such as in z-pinch devices, PFCs are subject to large current and magnetic flux densities …
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Hybrid Illinois Device for Research and Applications material analysis test-stand development for characterization of fusion plasma-material interactions
… science, mainly research pertaining to fusion plasma facing components (PFCs). HIDRA’s long-pulse steady-state stellarator plasmas provide a unique plasma environment to test materials under the harsh conditions they will experience in a fusion device. To realize HIDRA’s potential to advance …
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Mitigation of RF sheaths through design and implementation of magnetic field-aligned ICRF antenna
… or elimination of impurities introduced into the plasma during ICRF operation, particularly for tokamaks with high-Z plasma facing components (PFCs). Plasma impurities associated with ICRF auxiliary heating are universally observed [3, 4, 5, 6]. However, the underlying physics of ICRF-specific …
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Study of temperature dependence of hydrogen retention in lithium coatings on stainless steel with the Materials Analysis Particle Probe (MAPP)
Plasma materials interactions (PMI) in tokamak machines play a crucial role in the overall plasma performance. For this reason PMI research has gained great interest during the last couple of decades. Proper conditioning of Plasma Facing Components (PFCs) has shown to have dramatic effects in …
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Methods for the analysis of low-Z plasma facing surfaces in magnetic fusion applications
… decades. While the optimization of reactor components and magnetic topologies have led to considerable improvements in plasma density, temperature, and confinement time, research also suggests that materials selection in plasma-facing components (PFCs) can also have a substantial impact on …
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Technology and engineering of liquid lithium for fusion applications
… fusion arise from the interaction of the fusion plasma with the first wall of the device, particularly in the divertor of the tokamak. Edge cooling, impurity generation, and first wall erosion among others all have root causes that lie in particle and energy exchanges that occur at the plasma …
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Interaction of plasmas with lithium and tungsten fusion plasma facing components
… fusion is the interaction of the fusion plasma with the first wall of the device; an interaction which is strongest in the divertor region. Erosion, melting, sputtering, and deformation are all concerns which inform choices of divertor material. Of the many materials proposed for use in …
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Advanced geometries for dryout mitigation in temhd-driven liquid lithium systems
… by heating isotopes of hydrogen until they are a plasma and confining them magnetically in a toroidal vacuum system. High plasma density, long confinement time, and extremely high plasma temperatures must be achieved in order to create efficient fusion. Plasma facing components (PFCs) must bear …
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Advancement of liquid lithium plasma-facing components for next-generation fusion devices
… of these challenges is handling the large heat, plasma and neutron fluxes exhausted from the core plasma. Current tokamak design points assume a steady state heat flux of 10MW/m2 increasing to values >1GW/m2 in transient events and particle fluxes > 1 × 1023m−2s−1. Flowing liquid lithium Plasma …
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Dynamic interactions between energetic D and He ions on lithium-tungsten plasma-facing interfaces
… of highly-dense high-temperature fusion plasmas, a considerably higher demand is placed on the plasma facing components (PFCs) with an increase of fusion power production. Currently within operating experimental reactors, the PFCs need to handle only a few MW/m$^2$ of heat flux and …
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Flow control and associated technologies to advance the application of TEMHD-driven liquid lithium in fusion devices
… devices, evidence points to the fact that solid plasma facing components will not be able to endure the conditions without extensive damage. Plasma-materials interactions with these surfaces lead to material defects, impurity formation, and cooling of the edge plasma. In order to alleviate these …