大电流密度放电中钾的Penning电离观测

Penning ionization of K in high-current-density discharge

本文叙述了自制的大电流密度、快脉冲放电电源，及用该放电装置激励Ｈｅ／Ｋ混合蒸气，观测到Ｈｅ／Ｋ间能量传递产生的钾的Ｐｅｎｎｉｎｇ电离。

A high-current-density,fast pulse discharge device has been developed,The device is used to excite He/K mixed vapor,and the Penning ionization of K byHe(6d￣3D),HeB(5s￣1S)and He(4p￣1P_0)is observed in discharge afterflow.