One-dimensional ordinary–slow extraordinary–Bernstein mode conversion in the electron cyclotron range of frequencies  

作　　者：郭星宇 高喆 贾国章 

机构地区：[1]Department of Engineering Physics,Tsinghua University [2]Institute of Plasma Physics,Chinese Academy of Sciences

出　　处：《Plasma Science and Technology》2017年第8期54-60,共7页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant Nos.11325524 and 11261140327);Ministry of Science and Technology of China(Contract No.2013GB112001)

摘　　要：The ordinary–slow extraordinary–Bernstein（O-SX-B） mode conversion in the electron cyclotron range of frequencies（ECRF） is revisited in slab geometry. The analytical formula of the O-SX conversion efficiency by Mj？lhus is upgraded to include the magnetic field gradient, and the analytical expression of the SX-B conversion efficiency by Ram and Schultz is generalized for the case of oblique injection. Therefore, the conversion efficiency and optimal parallel refractive index for the whole O-SX-B conversion are obtained analytically and a shift of optimal parallel refractive index due to SX-FX loss is found. Full wave calculations are also presented to be compared with the analytical results.The ordinary–slow extraordinary–Bernstein（O-SX-B） mode conversion in the electron cyclotron range of frequencies（ECRF） is revisited in slab geometry. The analytical formula of the O-SX conversion efficiency by Mj？lhus is upgraded to include the magnetic field gradient, and the analytical expression of the SX-B conversion efficiency by Ram and Schultz is generalized for the case of oblique injection. Therefore, the conversion efficiency and optimal parallel refractive index for the whole O-SX-B conversion are obtained analytically and a shift of optimal parallel refractive index due to SX-FX loss is found. Full wave calculations are also presented to be compared with the analytical results.

关 键 词：extraordinary refractive Schultz tunneling analytically matching converted realistic cutoff simplified 

分 类 号：TL542.2[核科学技术—核技术及应用]