Extended Data Fig. 2: Initial bulk plasma and energetic particle profiles.

(a) Electron density (black), electron temperature (blue) and safety factor (grey) profiles for AUG shot #33616 at t = 7.2 ms (left axis), including their error bars (blue, black and light and dark grey shaded areas, respectively), and initial fast-ion pressure profile (red, right axis). The x-axis represents the radial coordinate \({\rho }_{{\rm{pol}}}=\sqrt{{\Psi }_{{\rm{N}}}}\), where Ψ_N is the normalized poloidal flux. The error bars in the n_e and T_e profile reflect the standard deviation in the fitting of the experimental data, whereas the error bars of the q profile are obtained using a bayesian approach as described in ref. ⁶⁶. The error bars of the safety factor profile at the plasma core (ρ_pol < 0.3, light grey shaded area) are not well defined because of the limitation of the available diagnostics, contrary to the region ρ_pol > 0.3 (dark grey shaded area). (b) Neutral Beam Injection (NBI) slowing down distribution in (E, Λ) space, where E is the energy and Λ = μB₀/E is the normalized pitch angle. Here, μ is the magnetic moment and B₀ the magnetic field at the magnetic axis.