Abstract
A modeling of the transport processes in T-10 tokamak using Astra code for two sets of discharges having ECRH auxiliary heating is presented. Electric potential measurements using HIBP show that radial profiles are negative for ohmic heating but become positive for large heating powers. We first obtain T α and n profiles by adjusting transport coefficients and then try to obtain the radial E r profiles by assuming three models for it. Results show good agreement for Ohmic and small ECRH power phases but not for large power where E r > 0 indicating that other processes have to be included.
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