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A fusion reactor requires plasma pre-heating before the rate ofdeuterium-tritium fusion reactions becomes significant. In ITER, radiofrequency(RF) heating of 3He ions, additionally puffed into the plasma, is one of themain options considered for increasing bulk ion temperature during the ramp-upphase of the pulse. In this paper, we propose an alternative scenario for bulkion heating with RF waves, which requires no extra 3He puff and profits fromthe presence of intrinsic Beryllium impurities in the plasma. The discussedmethod to heat Be impurities in D-T plasmas is shown to provide an even largerfraction of fuel ion heating.

A new ICRF scenario for bulk ion heating in D-T plasmas: How to utilize intrinsic impurities in fusion devices in our favour