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Showing 1 to 9 of 9 for “"Plasma facing components (PFC)"”.
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Design and Characterization of a Dust Injector for Future Studies of Tungsten Dust in the STOR-M Plasma
Dust generation from Plasma Facing Components (PFC) is a problem for tokamaks as they approach suitable reactor conditions. Tungsten dust is especially detrimental in the core, due to associated high Z bremsstrahlung power losses. As Tungsten is a primary candidate for PFC materials in large …
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External proton beam analysis of plasma facing materials for magnetic confinement fusion applications
… to perform in-air ion beam analysis on plasma facing divertor tiles from the Alcator C-Mod tokamak. A Particle Induced Gamma Emission (PIGE) technique was developed for boron depth profiling. In addition, Particle Induced X-ray Emission (PIXE) was implemented and used for a comprehensive …
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Gamma ray production cross sections of proton bombardment of fluorine for light element analysis and depth profiling
… performance and the surface conditions of the plasma facing components (PFC), diagnostic techniques that monitor the conditions of PFCs are useful. One ion beam analysis (IBA) diagnostic technique utilizes particle induced gamma emission (PIGE) analysis to diagnose the conditions of PFCs. Gamma …
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Effects of porosity on surface chemistry, wetting, and percolation in porous tungsten, liquid lithium hybrid plasma facing component system
… continues to be the material of choice for plasma facing components (PFC) in the divertor region of future plasma-burning fusion nuclear devices due to favorable properties such as high melting point, high thermal conductivity and low sputtering yield. However, challenges remain for the use …
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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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Response Of Plasma Facing Components In Tokamaks Due To Intense Energy Deposition Using Particle-In-Cell(pic) Methods
<p>Damage to plasma-facing components (PFC) due to various plasma instabilities is still a major concern for the successful development of fusion energy and represents a significant research obstacle in the community. It is of great importance to fully understand the behavior and lifetime …
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Development of accelerator based spatially resolved ion beam analysis techniques for the study of plasma materials interactions in magnetic fusion devices
Plasma-material interactions (PMI) in magnetic fusion devices pose significant scientific and engineering challenges for the development of steady-state fusion power reactors. Understanding PMI is crucial for the develpment of magnetic fusion devices because fusion plasmas can significantly modify …
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Plasma Facing Components conditioning techniques and their correlation with plasma performance in the National Spherical Torus eXperiment Upgrade (NSTX-U)
The effect of Plasma Facing Components (PFC) conditioning with boronization on plasma performance in the National Spherical Torus eXperiment Up- grade (NSTX-U) has been investigated in this work. A novel PFC diagnostic, the Materials Analysis Particle Probe (MAPP) was commissioned in NSTX-U and was …
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Physics of RF heating systems on proto-MPEX
… of the main challenges being the development of Plasma Facing Components (PFC) that can survive the extreme environment encountered in a fusion reactor. To expedite the testing and development of PFCs Oak Ridge National Laboratory (ORNL) is building the Materials Plasma Exposure eXperiment …