HL－1装置辅助加热等对能量约束的影响

EFFECTS OF ECRH, PI & LHCD ON PLASMA ENERGY CONFINEMENT IN HL-1 TOKAMAK

在ＨＬ－１托卡马克上进行了辅助加热、加料、电流驱动的物理实验研究。在改善等离子体约束方面，某些实验取得了较好的结果。在适当的稳定放电条件下，低杂波电流驱动和弹丸注入辅助加料，均能使等离子体能量约束得到一定程度的改善，与相同密度条件下的欧姆加热放电相比，能量约束时间提高了约３０％。在电子回旋共振加热等离子体实验中，等离子体总能量明显增加，但与相同密度条件下的欧姆加热放电相比，能量约束时间减少了约２０％。

The experiments of electron cyclotron resonance heating (ECRH), pellet injection (PI)and lower hybrid current drive (LHCD) have been conducted in the HL-1 Tokamak. Good results for plasma confinement have been achieved in the experiments. Under proper discharge conditions, the energy confinement of plasma can be improved to a certain extent by LHCD and PI, and the energy confinement time has increased by 30% over that in ohmic cases. During ECRH experiment,the total eneergy has increased obviously, but compared with pure Ohmic heating at the same density, τE decreased by 20%.