Analysis of KSTAR first plasma with using a 0-D plasma evolution code
POSTER
Abstract
During the commissioning of KSTAR, the time evolution of the plasma current is essential to check the performance of the device. Thus plasma variables, which determine the electromagnetic properties of the plasma column, are calculated by solving the particle and power balance of plasma in a volume- averaged manner. In this work, the plasma and vessel currents, which are obtained from coupled circuit equations, are compared with measurements. A series of comparisons enable us to evaluate the range of operational parameters such as energy confinement time, absorbed heating power, and impurity radiation loss. In addition, simulated evolutions of electron density and temperature are also checked with interferometer measurements (electron density) and electron cyclotron emission measurements (electron temperature) in order to reduce the uncertainty of analysis.