Kinetic neoclassical calculations of impurity radiation profiles
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 th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-08-01
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| Series: | Nuclear Materials and Energy |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352179116300710 |
| _version_ | 1828401665036779520 |
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| author | D.P. Stotler D.J. Battaglia R. Hager K. Kim T. Koskela G. Park M.L. Reinke |
| author_facet | D.P. Stotler D.J. Battaglia R. Hager K. Kim T. Koskela G. Park M.L. Reinke |
| author_sort | D.P. Stotler |
| collection | DOAJ |
| description | 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. Keywords: Neoclassical transport, Impurity radiation, Coronal equilibrium, Kinetic simulation, Particle-in-cell, Spherical torus |
| first_indexed | 2024-12-10T09:50:02Z |
| format | Article |
| id | doaj.art-0f904ac9eccb460bb670836d04d57f9c |
| institution | Directory Open Access Journal |
| issn | 2352-1791 |
| language | English |
| last_indexed | 2024-12-10T09:50:02Z |
| publishDate | 2017-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Materials and Energy |
| spelling | doaj.art-0f904ac9eccb460bb670836d04d57f9c2022-12-22T01:53:41ZengElsevierNuclear Materials and Energy2352-17912017-08-011211301135Kinetic neoclassical calculations of impurity radiation profilesD.P. Stotler0D.J. Battaglia1R. Hager2K. Kim3T. Koskela4G. Park5M.L. Reinke6Corresponding author.; Princeton Plasma Physics Laboratory, Princeton University, P. O. Box 451, Princeton, NJ 08543-0451, USAPrinceton Plasma Physics Laboratory, Princeton University, P. O. Box 451, Princeton, NJ 08543-0451, USAPrinceton Plasma Physics Laboratory, Princeton University, P. O. Box 451, Princeton, NJ 08543-0451, USAKAIST, Daejeon, South KoreaLawrence Berkeley National Laboratory, Berkeley, CA 94720 USANational Fusion Research Institute, Daejeon, South KoreaOak Ridge National Laboratory, P. O. Box 2008, Oak Ridge, TN 37831, USAModifications 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. Keywords: Neoclassical transport, Impurity radiation, Coronal equilibrium, Kinetic simulation, Particle-in-cell, Spherical torushttp://www.sciencedirect.com/science/article/pii/S2352179116300710 |
| spellingShingle | D.P. Stotler D.J. Battaglia R. Hager K. Kim T. Koskela G. Park M.L. Reinke Kinetic neoclassical calculations of impurity radiation profiles Nuclear Materials and Energy |
| title | Kinetic neoclassical calculations of impurity radiation profiles |
| title_full | Kinetic neoclassical calculations of impurity radiation profiles |
| title_fullStr | Kinetic neoclassical calculations of impurity radiation profiles |
| title_full_unstemmed | Kinetic neoclassical calculations of impurity radiation profiles |
| title_short | Kinetic neoclassical calculations of impurity radiation profiles |
| title_sort | kinetic neoclassical calculations of impurity radiation profiles |
| url | http://www.sciencedirect.com/science/article/pii/S2352179116300710 |
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