文献类型：期刊文献

中文题名：HT-7托卡马克等离子体电子热扩散系数与等离子体参数的关系

英文题名：Relationship Between Electron Thermal Diffusivity and Plasma Parameters on the HT-7 Tokamak

作者：张先梅[1];万宝年[2]

机构：[1]华东理工大学物理系,上海200237;[2]中科院等离子体物理研究所,合肥230031

年份：2004

卷号：30

期号：5

起止页码：584

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;EI(收录号：2004498707057);Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：等离子体参数;电子;HT-7托卡马克装置;热扩散系数;半径;中心;硅化;托卡马克等离子体;放电

外文关键词：electron thermal diffusivity; plasma parameters; HT-7 tokamak

摘要：研究了HT-7托卡马克装置欧姆放电情况下电子热扩散系数χe的空间分布以及它与等离子体参数如等离子体中心弦平均密度、等离子体电流的关系。χe沿等离子体小半径的分布是逐渐增大,中心最低。χe在等离体1/2小半径处的数值随等离子体的中心弦平均密度增大而降低,随等离子体电流的增大而增大。且硼化后的值比硅化后的值稍小一些。χe比INTOR定标小很多,但与欧姆放电情况下的Merezhkin定标以及Coppi-Mazzucato定标数值差不多。
Electron heat diffusivity χ_e profile on the HT-7 Tokamak was estimated in the ohmically-heated plasma, and the relationship between χ_e and plasma parameters such as central line-averaged electron density and plasma current was studied in this article. χ_e increases along with the plasma minor radius. It increases with plasma current, but it decreases with increasing central line-averaged electron density. χ_e after boronization is slightly lower than that after siliconization. It is significantly lower than INTOR scaling, but it is somewhat close to the magnitude of Merezhkin scaling, and Coppi-Mazzucato scaling for the ohmically-heated plasma.