### Abstract

A set of numerical techniques for calculating heat and particle source rates due to neutral beam injection in axisymmetric tokamaks is described. While these techniques consume a substantial amount of computer time, they take into account a number of significant, and normally neglected, effects. Examples of these effects are reionization of escaping charge exchanged beam particles, finite fast ion orbit excursions, beam deposition through collisions of beam neutrals with circulating beam ions, and the transport of thermal neutrals in the plasma due to charge changing collisions with beam ions.

Original language | English (US) |
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Pages (from-to) | 61-78 |

Number of pages | 18 |

Journal | Journal of Computational Physics |

Volume | 43 |

Issue number | 1 |

DOIs | |

State | Published - Sep 1981 |

### All Science Journal Classification (ASJC) codes

- Numerical Analysis
- Modeling and Simulation
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
- Computer Science Applications
- Computational Mathematics
- Applied Mathematics

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## Cite this

Goldston, R. J., McCune, D. C., Towner, H. H., Davis, S. L., Hawryluk, R. J., & Schmidt, G. L. (1981). New techniques for calculating heat and particle source rates due to neutral beam injection in axisymmetric tokamaks.

*Journal of Computational Physics*,*43*(1), 61-78. https://doi.org/10.1016/0021-9991(81)90111-X