A simple procedure has been devised to extend the analysis of external magnetic measurements, using a freeboundary equilibrium solver with the additional constraint of diamagnetic measurement. The paper discusses the application of the method to ohmically and auxiliarily heated JET plasmas where pressure anisotropy could occur. It is shown that approximate relations commonly in use for a fast calculation of poloidal beta and internal inductance are not accurate in the case of JET. A better approximation for isotropic pressure is given.
DETERMINATION OF EQUILIBRIUM GLOBAL PARAMETERS FROM EXTERNAL MAGNETIC MEASUREMENTS IN JET DISCHARGES WITH AUXILIARY HEATING
PMantica
1988
Abstract
A simple procedure has been devised to extend the analysis of external magnetic measurements, using a freeboundary equilibrium solver with the additional constraint of diamagnetic measurement. The paper discusses the application of the method to ohmically and auxiliarily heated JET plasmas where pressure anisotropy could occur. It is shown that approximate relations commonly in use for a fast calculation of poloidal beta and internal inductance are not accurate in the case of JET. A better approximation for isotropic pressure is given.File in questo prodotto:
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