Inference of experimental radial impurity transport on Alcator C-Mod: Bayesian parameter estimation and model selection

  title={Inference of experimental radial impurity transport on Alcator C-Mod: Bayesian parameter estimation and model selection},
  author={Francesco Sciortino and N. T. Howard and Earl S. Marmar and Tom{\'a}{\vs} Odstr{\vc}il and N. M. Cao and R.Dux and Youssef M. Marzouk and Lucio M. Milanese and Matthew L. Reinke and John E Rice and P.Rodriguez-Fernandez},
  journal={Nuclear Fusion},
We present a fully Bayesian approach for the inference of radial profiles of impurity transport coefficients and compare its results to neoclassical, gyrofluid and gyrokinetic modeling. Using nested sampling, the Bayesian impurity transport inference (BITE) framework can handle complex parameter spaces with multiple possible solutions, offering great advantages in interpretative power and reliability with respect to previously demonstrated methods. BITE employs a forward model based on the… 

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  • C. Angioni
  • Physics
    Plasma Physics and Controlled Fusion
  • 2021
In this paper, the theory of collisional and turbulent transport of impurities in tokamak plasmas is reviewed. The results are presented with the aim of providing at the same time a historical



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