Inward particle transport driven by biased endplate in a cylindrical magnetized plasma  

作　　者：盖跃 徐田超 肖池阶 郭志彬 王晓钢 何任川 杨肖易 张祖煜 袁瑞鑫 Yue GE;Tianchao XU;Chijie XIAO;Zhibin GUO;Xiaogang WANG;Renchuan HE;Xiaoyi YANG;Zuyu ZHANG;Ruixin YUAN(State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,People's Republic of China;Department of Physics,Harbin Institute of Technology,Harbin 150001,People's Republic of China)

机构地区：[1]State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,People's Republic of China [2]Department of Physics,Harbin Institute of Technology,Harbin 150001,People's Republic of China

出　　处：《Plasma Science and Technology》2024年第3期126-130,共5页等离子体科学和技术（英文版）

基　　金：supported by the National MCF Energy R&D Program of China(No.2018YFE0303100);National Natural Science Foundation of China(No.11975038)。

摘　　要：The inward particle transport is associated with the formation of peaked density profiles,which contributes to improve the fusion rate and the realization of steady-state discharge.The active control of inward particle transport is considered as one of the most critical issues of magnetic confinement fusion.Recently,it is realized preliminarily by adding a biased endplate in the Peking University Plasma Test(PPT)device.The results reveal that the inward particle flux increases with the bias voltage of the endplate.It is also found that the profile of radial electric field(Er)shear is flattened by the increased bias voltage.Radial velocity fluctuations affect the inward particle more than density fluctuations,and the frequency of the dominant mode driving inward particle flux increases with the biased voltage applied to the endplate.The experimental results in the PPT device provide a method to actively control the inward particle flux using a biased endplate and enrich the understanding of the relationship between E_(r)×B shear and turbulence transport.

关 键 词：inward particle transport biased endplate turbulent transport 

分 类 号：TL631[核科学技术—核技术及应用]