Author: Li, X.F.
Paper Title Page
MOPFI047 Analysis and Design of Matching Unit for a RF Driven Plasma Source for Fusion Purpose 389
 
  • H.K. Yue
    Huazhong University of Science and Technology(HUST), Wuhan, People's Republic of China
  • D.Z. Chen, M. Fan, J. Huang, D. Li, X.F. Li, K.F. Liu, C.R. Wan, C. Zhou
    HUST, Wuhan, People's Republic of China
 
  A RF dri­ven plasma ex­citer for pro­duc­ing neg­a­tive ions, aim­ing for heat­ing and cur­rent drive neu­tral beam in­jec­tors for fu­sion ap­pli­ca­tions, is in de­vel­op­ing in Huazhong Uni­ver­sity of Sci­ence and Tech­nol­ogy (HUST). In order to cou­ple the max­i­mum RF power to the source, the match­ing unit is de­signed to match the im­ped­ance of the source to that of the RF coax­ial line. Firstly, a FEM model was built to es­ti­mate the equiv­a­lent cir­cuit pa­ra­me­ters of the source. Nu­mer­i­cal pre­dic­tions were com­pared with a small ex­per­i­men­tal setup to ver­ify the ac­cu­racy of the fem model. Based on the nu­mer­i­cal re­sults, the RF coil and the match­ing com­po­nents were care­fully de­signed. Fi­nally, the match­ing cir­cuit for the source is de­vel­oped and tested. Ex­per­i­men­tal re­sults will be pre­sented in the full paper.