氧分子的价壳层光学振子强度研究  

A STUDY OF OPTICAL OSCILLATOR STRENGTHS FOR VALANCE SHELL OF MOLECULAR OXYGEN

作　　者：朱林繁[1] 钟志萍[1] 暨青 张晓军[1] 武淑兰[1] 凤任飞[1] 徐克尊[1] 

机构地区：[1]中国科学技术大学近代物理系

出　　处：《物理学报》1997年第3期458-466,共9页Acta Physica Sinica

基　　金：国家自然科学基金;国家攀登计划及中国科学技术大学青年基金资助

摘　　要：在入射电子能量为１５００ｅＶ、平均散射角为０°、能量分辨为６０ｍｅＶ条件下，得到了氧分子在５７—２８５ｅＶ能量区间的光学振子强度密度谱，获得了氧分子Ｅ３－ｕ的ν′＝０，１，２和２３Πｕ的ν′＝０，１各振动能级的绝对光学振子强度，同时检验了我们的ＢｅｔｈｅＢｏｒｎ转换因子外推到低能端的可靠性．The absolute optical oscillator strength density spectrum of oxygen has been measured at an impact energy of 1.5 keV and a mean scattering angle of 0° in an energy region of 5.7—28.5 eV with typical FWHM 60 meV.The absolute optical oscillator strengths corresponding to vibrational levels of E 3 - u, ν′ =0,1,2 and 2 3Π u, ν ′=0,1 are reported and compared with previous experimental and theoretical results.The validity and accuracy of the Bethe Born conversion factor is confirmed down to 6 eV by comparison.

关 键 词：氧分子 价壳层 光学振子强度 

分 类 号：O561.3[理学—原子与分子物理]