Lower hybrid current drive experiments were carried out in the HT-2 tokamak (major radius 0.44 m) with four sets of an eight-waveguide multijunction launcher and a 2.46 GHz magnetron. The four independent radiofrequency (RF) systems, operating at frequencies differing by 2 MHz each, generated incoherent waves in the plasma. A plasma current of 8.6 kA was sustained during 20 ms by an RF power of 16 kW in a low density plasma. The current drive efficiency was 0.5 × 1018 A.W-1.m -2, which did not decrease with the number of active RF sources. This showed that current drive with incoherent waves is not inferior to that using coherent waves
低混波电流驱动实验在HT-2托卡马克（大半径0.44 m）上进行了，使用了四套八波导多结发射器和2.46 GHz磁控管。四个独立的射频系统，每个工作频率相差2 MHz，在等离子体中产生了非相干波。在低密度等离子体中，通过16 kW的射频功率维持了8.6 kA的等离子体电流，持续时间为20 ms。电流驱动效率为0.5 × 10^18 A·W⁻¹·m⁻²，且该效率并未随激活射频源数量的增加而降低。这表明，使用非相干波的电流驱动效果并不逊于使用相干波的情况。