John Caughman Scientist, Plasma Technology and Applications Contact CAUGHMANJB@ORNL.GOV All Publications Plasma heating technology Investigation of materials for radio frequency antenna plasma facing components Filterscope Techniques for Parasitic Signal Screening Ion cyclotron heating at high plasma density in Proto-MPEX Power transport efficiency during O-X-B 2nd harmonic electron cyclotron heating in a helicon linear plasma device RF sheath induced sputtering on Proto-MPEX part 2: Impurity transport modeling and experimental comparison Characterizing the plasma-induced thermal loads on a 200 kW light-ion helicon plasma source via infra-red thermography The U.S. approach to address plasma-material interactions and fusion nuclear science with linear plasma devices... Development of the materials analysis and particle probe for Proto-MPEX Heat Flux Analysis From IR Imaging on Proto-MPEX The Material Plasma Exposure eXperiment: Mission and conceptual design Experimental Investigation of the Effects of Magnetic Mirrors on Plasma Transport in the Prototype Material Plasma Exposure Experiment The Materials Plasma Exposure eXperiment: Status of the Physics Basis Together With the Conceptual Design and Plans Forward Effect of magnetic field ripple on parallel electron transport during microwave plasma heating in the Proto-MPEX linear plasma device Shattered pellet injection technology design and characterization for disruption mitigation experiments Latest results from Proto-MPEX and the future plans for MPEX... Results of Ion Cyclotron Heating Experiments on Proto-MPEX Utilizing a Movable Stainless Steel Target Utilization of O-X-B mode conversion of 28 GHz microwaves to heat core electrons in the upgraded Proto-MPEX Computational investigation of ion cyclotron heating on Proto-MPEX Evidence of electron heating at different radial locations on Proto-MPEX Operational domain of Proto-MPEX Characterization of the helicon plasma flux to the target of Proto-MPEX Differential pumping requirements for the light-ion helicon source and heating systems of Proto-MPEX... Summary of RF Technology Program Activities, October 2013 — September 2017... Direct measurement of the transition from edge to core power coupling in a light-ion helicon source Pagination Current page 1 Page 2 Page 3 … Next page ›â¶Äº Last page Last » Key Links Organizations Fusion and Fission Energy and Science Directorate Fusion Energy Division Fusion Nuclear Science, Technology, and Engineering Section Fusion Technology Group