| 托卡马克等离子体中杂质模的研究 |
| |
| 引用本文： | 张能,龚学余,黄千红,龚蕾,李景春.托卡马克等离子体中杂质模的研究[J].南华大学学报(自然科学版),2016,30(2):1-5. |
| |
| 作者姓名： | 张能 龚学余 黄千红 龚蕾 李景春 |
| |
| 作者单位： | 南华大学 数理学院,湖南 衡阳 421001,南华大学 数理学院,湖南 衡阳 421001;南华大学 核科学技术学院,湖南 衡阳 421001,南华大学 核科学技术学院,湖南 衡阳 421001,福清核电站,福建 福清 350300,南华大学 核科学技术学院,湖南 衡阳 421001 |
| |
| 基金项目： | 国际热核聚变实验堆(ITER)计划专项基金资助项目(2014GB108002);国家自然科学基金资助项目(11375085);湖南省核聚变与等离子体物理创新团队建设基金资助项目(NHXTD03);衡阳市科技局基金资助项目(2013KJ24);南华大学研究生科研创新基金资助项目(2014XCX08);湖南省研究生科研创新基金资助项目(2015SCX01) |
| |
| 摘 要： | 利用数值积分方法求解色散方程,研究托卡马克等离子体中杂质模的不稳定效应,分别模拟了不同杂质离子所激发的杂质模在不同参数下的变化情况.结果表明,杂质模驱动的等离子体不稳定性通常随杂质离子的质量和电荷数增大而增大,但也有反常的情况,质量很大的杂质离子可能导致更小的不稳定性.杂质模的激发必须使杂质离子浓度超过一定的阈值,杂质离子越轻,电荷数越低,阈值越大.更强或更弱的磁剪切效应都有利于抑制杂质模的不稳定性.在k_(θρ_s)谱图中,钨(W~(+8))杂质模有更小的谱宽度.
|
| 关 键 词： | 积分色散方程 杂质模 不稳定性 |
| 收稿时间： | 2016/1/29 0:00:00 |
Study of Impurity Mode in Tokamak Plasmas |
| |
| ZHANG Neng,GONG Xue-yu,HUANG Qian-hong,GONG Lei and LI Jing-chun.Study of Impurity Mode in Tokamak Plasmas[J].Journal of Nanhua University:Science and Technology,2016,30(2):1-5. |
| |
| Authors: | ZHANG Neng GONG Xue-yu HUANG Qian-hong GONG Lei and LI Jing-chun |
| |
| Institution: | School of Mathematics and Physics,University of South China,Hengyang, Hunan 421001,China,School of Mathematics and Physics,University of South China,Hengyang, Hunan 421001,China;School of Nuclear Science and Technology,University of South China, Hengyang,Hunan 421001,China,School of Nuclear Science and Technology,University of South China, Hengyang,Hunan 421001,China,Fuqing Nuclear Station,Fuqing,Fujian 350300,China and School of Nuclear Science and Technology,University of South China, Hengyang,Hunan 421001,China |
| |
| Abstract: | The instability effect driven by impurity mode is studied using a numerical method of integral dispersion equation in toroidal configuration.Impurity modes excited by various impurity ions are investigated under different parameters conditions.It is found that the greater instability is related to the heavier impurity ion mass and higher charge numbers,but there is an abnormal fact that heavier impurity ions lead to a bigger destabilizing effect on the mode.In addition,the excitation of impurity mode has to exceed the impurity charge concentration threshold,and the impurity ions with lighter mass and lower charge number produce a smaller threshold.The destabilizing effect of impurity mode is gradually suppressed in the stronger and weaker magnetic shear region.The impurity mode with W+8 ion has the narrowest of the spectra width. |
| |
| Keywords: | integral dispersion equation impurity mode instability effect |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《南华大学学报(自然科学版)》浏览原始摘要信息 |
| 点击此处可从《南华大学学报(自然科学版)》下载免费的PDF全文 |
|
