采用直流放电产生均匀等离子体,研究下极板上运动的带电颗粒的带电量问题.通过分析带电的介质颗粒发生碰撞运动时的碰撞轨迹,进而得到颗粒运动的相对速度等参量,最终求得颗粒的带电量Q,Q为106~107 e.实验结果对深入研究尘埃等离子体中带电颗粒的各种复杂运动提供了依据.
The charge of charged particles moving on the bottom plate is studied by using DC discharge to produce uniform plasma. The relative velocity of particle motion and other parameters are obtained by analyzing the collision trajectory of charged particles, and the charged quantity of particles is obtained. The experimental results provide a basis for further study of the complex motion of charged particles in dusty plasma.
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