Effect of a non-circular shape of the torus on the l=2 torsatron magnetic surfaces
The numerical calculations of magnetic field of the l=2 torsatron magnetic system with non-circular poloidal cross-section of the torus is carried out in the work. It is shown that the value δi≈0.2 of maximal relative deviation of a non-circular poloidal cross-section from basic circular one results...
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| Date: | 2017 |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2017
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| Series: | Вопросы атомной науки и техники |
| Subjects: | |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/122115 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Effect of a non-circular shape of the torus on the l=2 torsatron magnetic surfaces / V.G. Kotenko // Вопросы атомной науки и техники. — 2017. — № 1. — С. 18-20. — Бібліогр.: 10 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | The numerical calculations of magnetic field of the l=2 torsatron magnetic system with non-circular poloidal cross-section of the torus is carried out in the work. It is shown that the value δi≈0.2 of maximal relative deviation of a non-circular poloidal cross-section from basic circular one results in a several-fold contraction of closed magnetic surface existence region. There is some increase in the values of rotational transform angle and the mirror ratio in the central closed magnetic surfaces. An enlarged clearance between the outer boundary of field line stochastic layer, i.e., the boundary of the plasma layer having transient plasma parameters (SOL plasma) and the surface of vacuum chamber can be obtained by the transition from the circular torus to the non-circular torus under consideration. |
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