John B Caughman Scientist, Plasma Technology and Applications Contact caughmanjb@ornl.gov | 865.574.5131 All Publications 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... 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 E... 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 plasm... 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... Plasma flow measurements in the Prototype-Material Plasma Exposure eXperiment (Proto-MPEX) and comparison with B2.5-Eirene mo... Helicon normal modes in Proto-MPEX... Power accounting of plasma discharges in the linear device Proto-MPEX... Helicon plasma ion temperature measurements and observed ion cyclotron heating in proto-MPEX... Pagination Current page 1 Page 2 Page 3 … Next page ›› Last page Last » Key Links ORCID Organizations Fusion and Fission Energy and Science Directorate Fusion Energy Division Fusion Nuclear Science, Technology, and Engineering Section Fusion Technology Group