Anisotropic distribution of alpha particles in a tokamak reactor
We carried out systematic study of neoclassical equilibrium distribution of α particles born from deuterium–tritium nuclear fusion in a tokamak reactor. The distribution in the phase space is visualized in various 2D planes. We studied a previously known but less investigated phenomenon—the co-curre...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1741-4326/add6b4 |
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| Summary: | We carried out systematic study of neoclassical equilibrium distribution of α particles born from deuterium–tritium nuclear fusion in a tokamak reactor. The distribution in the phase space is visualized in various 2D planes. We studied a previously known but less investigated phenomenon—the co-current flow of α particles. We gave detailed explanation for this flow by examining the collisionless evolution of toroidal filament sources, using both the guiding-center drift model and full orbit model. We found that the flow appears because of the co-count asymmetry, which makes co-going α particles on average stay in weaker magnetic field region than that of the counter-going ones. |
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| ISSN: | 0029-5515 |