【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．将所得结果与前人的工作进行了比更多还原

【Abstract】 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.更多还原