Ezekial Unterberg Group Leader, Power Exhaust and Particle Control Group Contact UNTERBERGEA@ORNL.GOV All Publications Use of isotopic tungsten tracers and a stable-isotope-mixing model to characterize divertor source location in the DIII-D metal rings campaign HELIOS: A Helium Line-ratiO Spectral-monitoring Diagnostic for High Resolution Plasma Profiles near the ICRH Antenna on TEXTOR Global Particle Balance Measurements in DIII-D H-mode Discharges... Predictive outlook for experiments resolving prompt vs local redeposition of high-Z materials in tokamaks HEAT Simulation and IR Data Comparison for ST40 Plasma-Facing Components Investigation of materials for radio frequency antenna plasma facing components Filterscope Techniques for Parasitic Signal Screening Multi-physics modeling of tungsten collector probe samples during the WEST C4 He campaign Dependence of high-Z redeposition on the field-to-surface pitch angle and other sheath parameters in tokamaks Design and analysis of actively-cooled, edge-transport diagnostic for long-pulsed operation in WEST Calibration improvements expand filterscope diagnostic use Oak Ridge National Laboratory Official TM Cover: Development and Qualification of Tungsten Reference Materials for LA-ICP-MS The effectiveness of D2 pellet injection in reducing intra-ELM and inter-ELM tungsten divertor erosion rates in DIII-D during the Metal Rings Campaign Refining light impurity content estimates at the lower divertor based on experimental data in WEST 13C surface characterization of midplane and crown collector probes on DIII-D Development of an Integrated Multidiagnostic to Assess the High-Z Impurity Fluxes in the Metallic Environment of WEST Using IMAS OEDGE modeling of far-SOL tungsten impurity sources and screening in WEST Characterizing W sources in the all-W wall, all-RF WEST tokamak environment 3D ion gyro-orbit heat load predictions for NSTX-U Development of an Integrated Multidiagnostic to Assess the High-Z Impurity Fluxes in the Metallic Environment of WEST Using IMAS Initial results from boron powder injection experiments in WEST lower single null L-mode plasmas Developing solid-surface plasma facing components for pilot plants and reactors with replenishable wall claddings and continuous surface conditioning. Part A: concepts and questions DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy Developing solid-surface plasma facing components for pilot plants and reactors with replenishable wall claddings and continuous surface conditioning. Part B: required research in present tokamaks Report on the Second MPEX User Research Forum 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 Burning Plasma Foundations Section Power Exhaust and Particle Control Group
News ORNL fusion scientists are working to make measurements of plasma disruption mitigation methods more accurate
