文献类型：期刊文献

英文题名：Anomalous transport driven by ion temperature gradient instability in an anisotropic deuterium-tritium plasma

作者：Zhang, Debing[1];Yu, Limin[1];Xue, Erbing[1];Zhang, Xianmei[1];Ren, Haijun[2,3]

机构：[1]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[2]Univ Sci & Technol China, Sch Phys Sci, Hefei 230026, Peoples R China;[3]Univ Sci & Technol China, CAS Key Lab Geospace Environm, Hefei 230026, Peoples R China

年份：2022

卷号：24

期号：2

外文期刊名：PLASMA SCIENCE & TECHNOLOGY

收录：;EI(收录号：20220611611928);WOS:【SCI-EXPANDED(收录号:WOS:000745308100001)】；

基金：This work was supported by the National MCF Energy R&D Program of China (No. 2019YFE03060000), and National Natural Science Foundation of China (Nos. 12 005 063, 12 175 228, 11 875 131 and 11 675 053).

语种：英文

外文关键词：deuterium-tritium plasma; ion temperature gradient instability; temperature anisotropy; turbulent transport; mixing length model approximation

摘要：In this work, the anomalous transport driven by the ion temperature gradient instability is investigated in an anisotropic deuterium-tritium (D-T) plasma. The anisotropic factor alpha, defined as the ratio of perpendicular temperature to parallel temperature, is introduced to describe the temperature anisotropy in the equilibrium distribution function. The linear dispersion relation in local kinetic limit is derived, and then numerically evaluated to study the dependence of mode frequency on the anisotropic factor alpha of D and the fraction of T particle epsilon (T) by choosing three sets of typical parameters, denoted as the cyclone base case, ITER and CFETR cases. Based on the linear results, the mixing length model approximation is adopted to analyze the quasi-linear particle and energy fluxes for D and T. It is found that choosing small alpha and large epsilon (T) is beneficial for the confinement of particle and energy for D and T. This work may be helpful for the estimation of turbulent transport level in the ITER and CFETR devices.