Vessel Eddy Current Measurement for the National Spherical Torus Experiment (NSTX).

Gates, D. A. ; Menard, J. ; Marsala, R.

Technical Information Center Oak Ridge Tennessee

关键词: Eddy currents;    Analog circuits;    Vacuum vessel;    Measurement;    Model;   

RP-ID  :  DE2005836475

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

A simple analog circuit that measures the NSTX axisymmetric eddy current distribution has been designed and constructed. It is based on simple circuit model of the NSTX vacuum vessel that was calibrated using a special axisymmetric eddy current code which was written so that accuracy was maintained in the vicinity of the current filaments. The measurement and the model have been benchmarked against data from numerous vacuum shots and they are in excellent agreement. This is an important measurement that helps give more accurate equilibrium reconstructions.