Jeffrey L Herfindal R&D Associate Contact herfindaljl@ornl.gov | 858.455.2163 All Publications Experiments on plasma detachment in a V-shaped slot divertor in the DIII-D tokamak Runaway electron plateau current profile reconstruction from synchrotron imaging and Ar-II line polarization angle measurements in DIII-D Calibration improvements expand filterscope diagnostic use Tungsten erosion and divertor leakage from the DIII-D SAS-VW tungsten-coated divertor in experiments with neon gas seeding Density and temperature profiles after low-Z and high-Z shattered pellet injections on DIII-D... Observation of D2 molecule line emission after massive D2 injection into runaway electron plateaus in DIII-D... Trends in runaway electron plateau partial recombination by massive H 2 or D 2 injection in DIII-D and JET and first extrapolations to ITER and SPARC Measurement and simulation of small cryogenic neon pellet Ne-I 640 nm photon efficiency during ablation in DIII-D plasma... DIII-D research advancing the physics basis for optimizing the tokamak approach to fusion energy Shattered pellet injection experiments at JET in support of the ITER disruption mitigation system design... Polarized imaging of visible synchrotron emission from runaway electron plateaus in DIII-D... SPATIALLY DEPENDENT SIMULATIONS AND MODEL VALIDATION OF RUNAWAY ELECTRON DISSIPATION VIA IMPURITY INJECTION IN DIII-D AND JET... 3D radiation, density, and MHD structures following neon shattered pellet injection into stable DIII-D Super H-mode discharges Observation of non-thermal electron formation during the thermal quench of shattered pellet injection shutdowns in DIII-D Study of argon expulsion from the post-disruption runaway electron plateau following low-Z massive gas injection in DIII-D... Shattered pellet penetration in low and high energy plasmas on DIII-D... Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall DIII-D research towards establishing the scientific basis for future fusion reactors Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall... Integrated Zeff analysis on the DIII-D Tokamak... Injection of multiple shattered pellets for disruption mitigation in DIII-D... Study of argon assimilation into the post-disruption runaway electron plateau in DIII-D and comparison with a 1D diffusion mo... Shattered pellet injection technology design and characterization for disruption mitigation experiments... Recent DIII-D advances in runaway electron measurement and model validation... Sawtooth oscillation behavior with varying amounts of applied stellarator rotational transform... Pagination Current page 1 Page 2 Next page ›› Last page Last » Key Links ORCID Organizations Fusion and Fission Energy and Science Directorate Fusion Energy Division Burning Plasma Foundations Section Advanced Tokamak Physics Group