Figure 2
From: Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping
(a) The plasma divertor heat flux space-time distribution from JET, used in43, already after being rescaled (i.e. multiplied in time by 1.2 and in space by 0.28). Broadening of the heat flux spatial profile from inter-ELM to ELM is clearly visible. Exponential decay fit of the ELM peak in both space and time yields \(\lambda _q^{ELM}\approx 2\) cm and \(\tau _{\mathrm {ELM}}^{\mathrm {decay}}\)=3 ms. (b) The additional proposed sweeping of the divertor s strike point yields to this empirical scaling of \(F_{\mathrm {STS}}\) found from the heat conduction simulation43 inside a solid target with varying \(\lambda _{\mathrm {swp}}<\)20 cm harmonic amplitude and \(f_{\mathrm {swp}}<10\) kHz frequency.
