John Caughman Scientist, Plasma Technology and Applications Contact CAUGHMANJB@ORNL.GOV All Publications 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 modeling Power accounting of plasma discharges in the linear device Proto-MPEX Helicon plasma ion temperature measurements and observed ion cyclotron heating in proto-MPEX Progress in magnet design activities for the material plasma exposure experiment Developing the Science and Technology for the Material Plasma Exposure eXperiment (MPEX) Progress in the Development of a High Power Helicon Plasma Source for the Materials Plasma Exposure Experiment Plasma Fuelling with Cryogenic Pellets in the Stellarator TJ-II Plasma Source Development for Fusion Relevant Material Testing The development of the Material Plasma Exposure eXperiment MPEX... Pre-Conceptual Design Activities for the Materials Plasma Exposure Experiment... Pre-conceptual design activities for the materials plasma exposure experiment Heat flux estimates of power balance on Proto-MPEX with IR imaging Analysis of an Actively Cooled Window for High Power Helicon Plasma Source Solidification and Acceleration of Large Cryogenic Pellets Relevant for Plasma Disruption Mitigation... Applications of Doppler-Free Saturation Spectroscopy for Edge Physics Studies The Material Plasma Exposure eXperiment MPEX: pre-design, development and testing of source concept Cryogenic Considerations for Superconducting Magnet Design for the Material Plasma Exposure eXperiment... Electric Field Measurements of the LH Wave and ICRF Near-Field Utilizing Non-Perturbative Spectroscopic Techniques... Recent Developments in Support of the Shattered Pellet Technique for Disruption Mitigation Long Pulse EBW Start-up Experiments in MAST... Electric field determination in the plasma-antenna boundary of a lower-hybrid wave launcher in Tore Supra through dynamic Stark-effect spectroscopy Using X-mode L, R and O-mode reflectometry cutoffs to measure scrape-off-layer density profiles for upgraded ORNL reflectomet... Probing the plasma near high power wave launchers in fusion devices for static and dynamic electric fields... Results from Laboratory Testing of a New Four-Barrel Pellet Injector for the TJ-II Stellarator Pagination First page « First Previous page ‹‹ Page 1 Current 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