In order to reduce the content of impurity and improve the performance of the plasma,boronization has been performed in HT7 superconducting tokamak by using RFassistant He glow discharge(He GD).

• 为了降低聚变等离子体杂质的含量，改善等离子体性能，对HT-7进行了射频辅助的氦气直流辉光放电硼化。