Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 34 / Number 1 / Pages 1-5
Lijian Qiu, Shaojie Wang, Qiang Xu
Fusion Science and Technology / Volume 34 / Number 1 / Pages 1-5
Format:electronic copy (download)
The effect of reducing the aspect ratio on the confinement of deuterium-tritium fusion products, i.e., alpha particles, in tokamaks is discussed. It is shown that for low-aspect-ratio tokamak reactors, the alpha-particle heating efficiency can be similar to conventional tokamaks; at the same time, the alpha-particle confinement time can be much shorter than that of conventional tokamaks. Thus, one can facilitate alpha-particle ash removal while maintaining high alpha-particle heating efficiency by reducing the aspect ratio.
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