Current Ramp-up by Microwave Power in the LATE Device

作     者：Takashi MAEKAWA Hitoshi TANAKA Masaki UCHIDA 

作者机构：Graduate School of Energy ScienceKyoto University 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2009年第11卷第4期

页      面：394-396页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：supported in part by the JSPS-CAS Core University Program in the field of Plasma and Nuclear Fusion 

主　　题：current ramp-up microwave electron cyclotron range of frequency 

摘      要：In the low aspect ratio torus experiment （LATE） device, plasma current is initiated and ramped up to 20 kA solely by microwave power at the electron cyclotron （EC） range of frequency with a ramp of the external vertical field By for the radial equilibrium of plasma torus at larger currents. Measurements suggest that an energetic electron tail in the energy range of about 200 keV carries the current. The line averaged electron density is higher than the plasma cutoff density, suggesting that tail electrons might be driven by electron Bernstein waves modeconverted from the launched electromagnetic waves.