Enhancement of Fusion Reactivity under Non-Maxwellian Distributions: Effects of Drift-Ring-Beam, Slowing-Down, and Kappa Super-Thermal Distributions

• DOI: 10.48550/arxiv.2305.06086
• Publication Date: 2023-01-01
• Authors: Haozhe Kong; Huasheng Xie; Bing Liu; Muzhi Tan; Di Luo; Z. Li; Jizhong Sun
• Keywords: Reactivity

Non-Maxwellian distributions of particles are commonly observed in fusion studies, especially for magnetic confinement plasmas. The particle distribution has a direct effect on reactivity, which is the focus this study. We investigate effects three types non-Maxwellian distributions, namely drift-ring-beam, slowing-down, and kappa super-thermal reactivities D-T (Deuterium-Trillium) p-B11 (proton-Boron) using newly developed program, where enhancement reactivity relative to Maxwellian computed while keeping total kinetic energy constant. calculation results show that temperature ranges interest us, 5-50 keV 100-500 p-B11, these can enhance reactivities. In case drift-ring-beam distribution, factors both reactions affected by perpendicular ring beam velocity, leading decreased low range increased high range. However, favorable reaction unfavorable reaction. slowing-down birth speed plays crucial role reactions, increasing leads shift towards lower temperatures, beneficial reactions. Finally, relatively large with small power-law index {\kappa}. Overall, study provides insight into highlights potential opportunities enhancing efficiency.