CAJ | 학술논문

利用新设计的脉冲光电子枪，研究了光电子束的能量分布，光电子数密度与激光强度的关系和光电子在电离区内的滞留时间。大部分电子的能量为光发射电子的剩余能量，但是由于电子的空间电荷效应，电子能量分布具有加宽现象·每个激光脉冲发射到电离区内的光电子数密度在109/cm3以上。
이용신설계적맥충광전자창，연구료광전자속적능량분포，광전자수밀도여격광강도적관계화광전자재전리구내적체류시간。대부분전자적능량위광발사전자적잉여능량，단시유우전자적공간전하효응，전자능량분포구유가관현상·매개격광맥충발사도전리구내적광전자수밀도재109/cm3이상。
By using the new designed pulse photoemission gun,the energy distribution of photoemision electron beam,the relationship between the number of photoemission electrons and the intensity of laser and the duration of photoemission electrons in ionization region were studied.Most of electrons have the excess energy which laser induce photoemission electrons leave,but the energy distribution of electrons is widened by the space charge effect of electrons.For on pulse,photoemission electron density with about 109～1010/cm3 in the ionization region was found.