铀原子基态光谱项分析

  • 摘要: <正> 一、引言 近年来由于原子法激光分离铀同位素研究的进展,推动了铀原子光谱的深入研究。从发表的零星资料看,目前研究进展很快,据称已测得300000条以上的铀原子谱线,能级认定日趋完整,测量方法采用了先进的铀原子束技术和激光光电流光谱技术。研究的光谱范围已进入铀原子高位能级准连续区。不过多数研究虽然给出了大量的光谱数据,却

     

    Abstract: In the work the high complex levels of atomic uranium are analyzed by meansof tabulation on the basis of quantum theory. The total table of uranium atomicterm and level number are deduced. The ground state configuration 5f~36d7s~2 ofatomic uranium are taken as an example. Ground state terms obtained are Quintets: ~5L, K, I~2, H~3, G~4, F~3, D~4, P~2, S Triplets: ~3N, M~2, L~4, K~6, I~9, H~(11), G~(13), F~(12), D~(11), P~7, S~3 Singlets: ~1N, M~2, L~3, K~5, I~7, H~8, G~9, F~9, D~7, P~5, S~2Ground state level number obtained is 386. The term of unidentified level and itspossible approximate wavenumber can be found from the total table of terms.

     

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