Loss-cone instabilities for compact fusion reactor and field-reversed configuration

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英文篇名：Loss-cone instabilities for compact fusion reactor and field-reversed configuration 作者：王中天 ; 李会东 ; 吴雪科 英文作者：Zhongtian WANG;Huidong LI;Xueke WU;School of Science,Xihua University;Southwestern Institute of Physics; 英文关键词：loss-cone instabilities;;linear fusion devices;;gyro-kinetic 中文刊名：DNZK 英文刊名：等离子体科学和技术(英文版) 机构：School of Science Xihua University;Southwestern Institute of Physics; 出版日期：2019-02-15 出版单位：Plasma Science and Technology 年：2019 期：v.21 基金：supported by the Natural Science Foundation for Young Scientists of China (No. 11605143);; National Natural Science Foundation of China (Nos. 11575055,11261140327,11005035,11205053);; the project,Plasma Confinement in the Advanced Magnetic Mirror (WX-2015-01-01);; the Open Research Subject of the Key Laboratory of Advanced Computation in Xihua University (Nos. szjj2017-011 and szjj2017-012);; the Young Scholarship Plan of Xihua University (No. 0220170201);; the National Key Research and Development Program of China (No. 2017YFE0300405) 语种：英文; 页：DNZK201902004 页数：5 CN：02 ISSN：34-1187/TL 分类号：16-20

摘要

Loss-cone instabilities are studied for linear fusion devices. The gyro-kinetic equation for such a configuration is rigorously constructed in terms of action-angle variables by making use of canonical transformation. The dispersion relation, including for the first time, finite bounce frequency is obtained and numerically solved. The loss-cone modes are found near ion-cyclotron frequency. The growth rates are greatly reduced and approaching zero with increasing beta value. The results suggest that loss-cone instabilities are unlikely to be threatening to linear fusion devices since a new longitudinal invariant is found and gives a constraint which helps confinement.
        Loss-cone instabilities are studied for linear fusion devices. The gyro-kinetic equation for such a configuration is rigorously constructed in terms of action-angle variables by making use of canonical transformation. The dispersion relation, including for the first time, finite bounce frequency is obtained and numerically solved. The loss-cone modes are found near ion-cyclotron frequency. The growth rates are greatly reduced and approaching zero with increasing beta value. The results suggest that loss-cone instabilities are unlikely to be threatening to linear fusion devices since a new longitudinal invariant is found and gives a constraint which helps confinement.

引文

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