基于光电效应原理。我们设计了一个新型脉冲激光光电子枪，它可以作为飞行时间质谱的电子碰撞电离的电离源。
Based on photoemission effect. we design a laser photoemission electron gun for electron impact ionization source of time of flight mass spectrometer.
光电子之间的非弹性碰撞使它们原来获得的能量在整个电离气体中迅速分配。
Inelastic collisions among photoelectrons rapidly distribute their initially gained energy throughout the region of ionized gas.
低能电子碰撞原子内壳层电离截面测量的研究在理论和实际应用方面都具有重要意义。
The study of atomic inner-shell ionization cross-sections by low-energy electron impact is significant in both theoretical researches and practical applications.
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