CT-6B托卡马克微波预电离实验

用迴旋管产生的大功率微波在电子迴旋频率的基频及二次谐波频率进行了托卡马克放电的预电离实验。实验证明,这种预电离方法比一般的预电离方法的击穿气压低,击穿电压及放电初期所耗费的变压器磁通也低得多。基频共振较二次谐波共振的效果好。关键词：

ELECTRON CYCLOTRON RESONANCE PREIONIZATION EXPERIMENTS ON CT-6B TOKAMAK

Injecting a high power microwave into the CT-6B tokamak plasma, we performed the experiments on the pre-ionization of the tokamak discharge at the fundamental and the second harmonic resonance of the electron cyclotron wave. The experiments verified that the microwave pre-ionization is very effective for the reduction of the loop voltage and the magnetic flux in the early stage and suppression of the production of runaway electrons in the quasi-steady stage. The effect of the microwave pre-ionization with the fundamental cyclotron resonance is better than that with the second one.