### Abstract

^{7}computed orbit points approximately, were used. We show that for ST40 conditions, the containment depends mainly on the peaking parameter of the density profile (p~2) which can be reached by the pellet injection. The maximum containment in the case of slowing down orbits is around 0.25 agreeing roughly with the first orbit guiding center calculations.

Original language | English |
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Title of host publication | Proceedings of the 45th EPS Conference on Plasma Physics |

Number of pages | 4 |

Volume | 42A |

Publisher | European Physical Society (EPS) |

Publication date | 2018 |

Pages | 185-188 |

Article number | P1.1001 |

ISBN (Electronic) | 979-10-96389-08-7 |

Publication status | Published - 2018 |

Event | 45th EPS Conference on Plasma Physics, EPS 2018 - Prague, Czech Republic Duration: 2 Jul 2018 → 6 Jul 2018 |

### Conference

Conference | 45th EPS Conference on Plasma Physics, EPS 2018 |
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Country | Czech Republic |

City | Prague |

Period | 02/07/2018 → 06/07/2018 |

### Cite this

*Proceedings of the 45th EPS Conference on Plasma Physics*(Vol. 42A, pp. 185-188). [P1.1001] European Physical Society (EPS).

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*Proceedings of the 45th EPS Conference on Plasma Physics.*vol. 42A, P1.1001, European Physical Society (EPS), pp. 185-188, 45th EPS Conference on Plasma Physics, EPS 2018, Prague, Czech Republic, 02/07/2018.

**α - Particle and NBI - Ion Deposition in a Compact Spherical Tokamak due to Slowing Down.** / Nicolai, A.; Gryaznevich, Mikhail.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - α - Particle and NBI - Ion Deposition in a Compact Spherical Tokamak due to Slowing Down

AU - Nicolai, A.

AU - Gryaznevich, Mikhail

PY - 2018

Y1 - 2018

N2 - Codes NFREYA and TORUS II are used to calculate the α - particle containment and loading as well as the power deposition and the driven current in ST40 high field spherical tokamak. First orbit approximation and complete slowing down orbits, needing 6.25 107 computed orbit points approximately, were used. We show that for ST40 conditions, the containment depends mainly on the peaking parameter of the density profile (p~2) which can be reached by the pellet injection. The maximum containment in the case of slowing down orbits is around 0.25 agreeing roughly with the first orbit guiding center calculations.

AB - Codes NFREYA and TORUS II are used to calculate the α - particle containment and loading as well as the power deposition and the driven current in ST40 high field spherical tokamak. First orbit approximation and complete slowing down orbits, needing 6.25 107 computed orbit points approximately, were used. We show that for ST40 conditions, the containment depends mainly on the peaking parameter of the density profile (p~2) which can be reached by the pellet injection. The maximum containment in the case of slowing down orbits is around 0.25 agreeing roughly with the first orbit guiding center calculations.

M3 - Article in proceedings

VL - 42A

SP - 185

EP - 188

BT - Proceedings of the 45th EPS Conference on Plasma Physics

PB - European Physical Society (EPS)

ER -