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Title: Kinetic neoclassical calculations of impurity radiation profiles

Abstract

Modifications of the drift-kinetic transport code XGC0 to include thetransport, ionization, and recombination of individual charge states,as well as the associated radiation, are described. The code is firstapplied to a simulation of an NSTX H-mode discharge with carbonimpurity to demonstrate the approach to coronal equilibrium. Theeffects of neoclassical phenomena on the radiated power profile areexamined sequentially through the activation of individual physicsmodules in the code. Orbit squeezing and the neoclassical inwardpinch result in increased radiation for temperatures above a fewhundred eV and changes to the ratios of charge state emissions at agiven electron temperature. Analogous simulations with a neonimpurity yield qualitatively similar results.

Creator(s)/Author(s):
; ; ; ; ; ;
Publication Date:
DOE Contract Number:  
AC02-09CH11466
Product Type:
Dataset
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
U. S. Department of Energy
Keywords:
Spherical Torus
OSTI Identifier:
1562033
DOI:
10.11578/1562033

Citation Formats

Stotler, D P, Battaglia, D J, Hager, R, Kim, K, Koskela, T, Park, G, and Reinke, M L. Kinetic neoclassical calculations of impurity radiation profiles. United States: N. p., 2017. Web. doi:10.11578/1562033.
Stotler, D P, Battaglia, D J, Hager, R, Kim, K, Koskela, T, Park, G, & Reinke, M L. Kinetic neoclassical calculations of impurity radiation profiles. United States. doi:10.11578/1562033.
Stotler, D P, Battaglia, D J, Hager, R, Kim, K, Koskela, T, Park, G, and Reinke, M L. 2017. "Kinetic neoclassical calculations of impurity radiation profiles". United States. doi:10.11578/1562033. https://www.osti.gov/servlets/purl/1562033. Pub date:Sun Jan 01 00:00:00 EST 2017
@article{osti_1562033,
title = {Kinetic neoclassical calculations of impurity radiation profiles},
author = {Stotler, D P and Battaglia, D J and Hager, R and Kim, K and Koskela, T and Park, G and Reinke, M L},
abstractNote = {Modifications of the drift-kinetic transport code XGC0 to include thetransport, ionization, and recombination of individual charge states,as well as the associated radiation, are described. The code is firstapplied to a simulation of an NSTX H-mode discharge with carbonimpurity to demonstrate the approach to coronal equilibrium. Theeffects of neoclassical phenomena on the radiated power profile areexamined sequentially through the activation of individual physicsmodules in the code. Orbit squeezing and the neoclassical inwardpinch result in increased radiation for temperatures above a fewhundred eV and changes to the ratios of charge state emissions at agiven electron temperature. Analogous simulations with a neonimpurity yield qualitatively similar results.},
doi = {10.11578/1562033},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {1}
}

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