A5063995936- Nuclear Materials and Properties
- Fusion materials and technologies
- Advanced Surface Polishing Techniques
- Magnetic confinement fusion research
- Plasma Diagnostics and Applications
- Laser-Plasma Interactions and Diagnostics
- Laser-induced spectroscopy and plasma
- Erosion and Abrasive Machining
- High Temperature Alloys and Creep
- Advancements in Photolithography Techniques
- Chemical and Physical Properties of Materials
- Minerals Flotation and Separation Techniques
- Laser Material Processing Techniques
- Advanced Materials and Semiconductor Technologies
- Digital Holography and Microscopy
- Muon and positron interactions and applications
- Adaptive optics and wavefront sensing
- Electrohydrodynamics and Fluid Dynamics
- Fatigue and fracture mechanics
- Satellite Image Processing and Photogrammetry
- Nanotechnology research and applications
- Parallel Computing and Optimization Techniques
- Spacecraft Design and Technology
- Particle accelerators and beam dynamics
- Nuclear reactor physics and engineering
University of Tennessee at Knoxville
2018-2021
Oak Ridge National Laboratory
2019-2021
Hope College
2019
Knoxville College
2018
The Prototype Material Plasma Exposure eXperiment (Proto-MPEX) is being used to qualify the plasma source and heating systems for (MPEX). MPEX will address important urgent research needs on material interactions future fusion reactors. In MPEX, plasma-facing components (nonirradiated a priori neutron irradiated) be exposed conditions as they are expected in steady-state device enabled by superconducting magnets, able break into new ground assessing materials at an ion fluence level range of...
Ion cyclotron heating (ICH) at a frequency in the 6- to 9-MHz range with electron 28- 105-GHz will be used Material Plasma Exposure eXperiment (MPEX) greatly increase energy of plasma stream produced by helicon source. ICH was chosen over substrate biasing produce energetic ions because it can more accurately reproduce plasma-material interactions fusion device. For instance, when target is tilted respect background magnetic field during ICH, presheath created so that redeposition phenomena...
There are currently few viable diagnostic techniques for in situ measurement of plasma facing component erosion. Digital holography is intended to fill this gap. Progress on the development single and dual CO2 laser digital diagnostics erosion discussed. The mode’s synthetic wavelength allows measurable range be expanded by a factor ∼400 compared holography. This measure surface height changes up 4.5 μm mode 2 mm mode. Results include ex measurements eroded targets also dynamic nm scale...
An electrothermal-arc plasma source (ET-Arc) has been developed to produce transient heat and particle fluxes similar those produced by edge localized modes onto divertor plasma-facing components in tokamaks. The ET-Arc utilizes a capacitive discharge send current through 4-mm-diameter, 9-cm-long capillary liner. liner material is ablated form high-velocity jet that impacts the target downstream. With circuit configuration, pulse lengths are 1 2 ms duration deliver of 0.25 2.1 GW m−2. was...