corona

n. 电晕(冠状物,日冕,飞檐的上部)

A faint glow enveloping the high-field electrode in a corona discharge, often accompanied by streamers directed toward the low-field electrode.

电晕在电晕放电中在高压电极出现的一种微弱光辉，常伴随有朝向低压电极的电流