The first results of studies of high-power (≥ 3 MW) H-mode discharges in double-null X-point-target
(XPT) divertor configuration on MAST-U are presented. By combining the large strike point radius of the Super-
X divertor with an additional X-point in the baffled outer divertor chambers, further exhaust benefits in strongly
detached conditions…
In this report key aspects of Lower Hybrid Current Drive (LHCD) operation at JET are presented. Amplitude and broadening of the Radio Frequency (RF) spectrum at about 3.7GHz and the frequency shift of the lower sideband were analyzed by means of new diagnostic utilizing RF spectra measurements. Dependencies on plasma density, LH power and the toroi…
