论文部分内容阅读
在欧姆放电和低杂波电流驱动（ＬＨＣＤ）及激光吹气注入杂质的联合实验中，首次在ＨＬ－１Ｍ 装置上观测到了与软Ｘ射线对应得非常好的锯齿型密度振荡。这种类锯齿型的密度振荡存在于低杂波电流驱动与激光吹气等离子体中。分析表明，该锯齿不是通常的ｑ ＝ １ 有理面上的锯齿，而是在低杂波与杂质共同作用下产生的类锯齿型的密度振荡。一种可能的机制是低杂波电流驱动下杂质的中心积累及崩塌引起的扰动磁场导致了快电子的损失，从而使得密度发生振荡
In the joint experiment of ohmic discharge and low clutter current driving (LHCD) and laser inflow of impurities, the sawtooth type density oscillation corresponding to the soft X-ray was observed for the first time on the HL-1M device. This type of jagged density oscillation exists in low-clutter current-driven and laser-blown plasmas. The analysis shows that this sawtooth is not a normal z = 1 rational facet, but rather a zigzag-like density oscillation caused by the combination of low clutter and impurities. One possible mechanism is that the central accumulation of impurities driven by low-clutter currents and the perturbation caused by the collapse of the magnetic field lead to the loss of fast electrons, causing the density to oscillate