Kinetic neoclassical calculations of impurity radiation profiles

Stotler, D.P.; Battaglia, D.J.; Hager, R.; Kim, K.; Koskela, T.; Park, G.; Reinke, M.L.
Issue date: 2017
Cite as:
Stotler, D.P., Battaglia, D.J., Hager, R., Kim, K., Koskela, T., Park, G., & Reinke, M.L. (2017). Kinetic neoclassical calculations of impurity radiation profiles [Data set]. Princeton Plasma Physics Laboratory, Princeton University.
  author      = {Stotler, D.P. and
                Battaglia, D.J. and
                Hager, R. and
                Kim, K. and
                Koskela, T. and
                Park, G. and
                Reinke, M.L.},
  title       = {{Kinetic neoclassical calculations of imp
                urity radiation profiles}},
  publisher   = {{Princeton Plasma Physics Laboratory, Pri
                nceton University}},
  year        = 2017

Modifications of the drift-kinetic transport code XGC0 to include the transport, ionization, and recombination of individual charge states, as well as the associated radiation, are described. The code is first applied to a simulation of an NSTX H-mode discharge with carbon impurity to demonstrate the approach to coronal equilibrium. The effects of neoclassical phenomena on the radiated power profile are examined sequentially through the activation of individual physics modules in the code. Orbit squeezing and the neoclassical inward pinch result in increased radiation for temperatures above a few hundred eV and changes to the ratios of charge state emissions at a given electron temperature. Analogous simulations with a neon impurity yield qualitatively similar results.

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1 ARK_DATA (1).zip 2.51 MB
2 readme (1).txt 5.91 KB