Equilibrium analysis of current profiles in tokamaks。本词 […]
Equilibrium analysis of current profiles in tokamaks。本词条依据上传的论文目录整理，未对论文元数据及引用次数作独立核实。
基本信息
- 作者：L L Lao,J R Ferron,R J Groebner,W Howl,H St John,E J Strait,T S Taylor
- 机构：通用原子公司
- 期刊：Nuclear Fusion
- 年份：1990
- 引用次数（上传表记录）：591
- 关键词：平衡
- DOI：10.1088/0029-5515/30/6/006
摘要
An efficient method is given for self-consistent reconstruction of the tokamak current profiles and their associated magnetic topology using the magnetohydrodynamic (MHD) equilibrium constraint from external magnetic measurements, kinetic profile measurements, internal poloidal magnetic field measurements, and topological information from soft X-ray (SXR) measurements. Illustrative examples for beam heated H-mode divertor discharges in the DIII-D tokamak are presented, using the experimentally measured kinetic profile information and external magnetic data from the existing diagnostics. Comparative reconstructions of the current profile using various combinations of diagnostics are given. Also presented is an alternative magnetic analysis method in which the MHD equilibrium is reconstructed using external magnetic data and a constraint on the edge pressure gradient. The results of a sensitivity study are given which show that the axial safety factor q(0) can be more accurately determined when additional information from internal poloidal magnetic measurements is used in conjunction with the external magnetic, kinetic and SXR topological data.