Gaussian process regression for density profile reconstruction from interferometry and reflectometry measurements

M. Kozeiha (1) , J. A. Morales (1) , J.-F Artaud (1)

1 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique

Objective: development of the WEST data pre-processing tool using Bayesian methods for fitting the density profiles. Complete reconstruction of density profiles using interferometry and reflectometer measurements. Study the L-H transitions in the shot for a better understanding of physics behind pedestal Summary: Development of a user friendly function that deals with most profiles. Fitting and saving for $n_e$ from mixing btw reflectometer and interferometer. Possible L-H transition was observed in the shot 55564 and the formation of the pedestal is shown

Domaines: Physique [physics]

M. Kozeiha, J. A. Morales, J.-F Artaud. Gaussian process regression for density profile reconstruction from interferometry and reflectometry measurements. 47th annual European Physical Society - Conference on Plasma Physics, EPS, Jun 2021, Sitges (E-Conference), Spain. ⟨cea-03273919⟩