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首页> 外文期刊>Journal of Molecular Spectroscopy >SELF-, AIR-, AND NITROGEN-BROADENING IN THE NU(1), BAND OF SO2
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SELF-, AIR-, AND NITROGEN-BROADENING IN THE NU(1), BAND OF SO2

机译：SO2波段NU（1）中的自吹，空气和氮扩散

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The collisional line broadening of SO2 transitions in the nu(1) band was measured with SO2, air, and nitrogen as perturbers by applying a diode laser spectrometer in pulse mode. Eighteen lines from the P branch (5 less than or equal to J'' less than or equal to 44, 0 less than or equal to K-a'' less than or equal to 20), eight lines from the Q branch (10 less than or equal to J'' less than or equal to 40, 1 less than or equal to K-a'' less than or equal to 23), and five lines from the R branch (12 less than or equal to J'' less than or equal to 35, 4 less than or equal to K-a'' less than or equal to 8) were investigated. The self-broadening coefficients gamma(SO2-SO2) show a significant decrease with increasing quantum number K-a'' as expected from the theory and vary from 0.41 to 0.16 cm(-1)/atm. For small quantum numbers several coincidences with the theoretical predictions were found, whereas for larger quantum numbers stronger deviations occur. In the case of collisions with air (0.081 cm(-1)/atm less than or equal to gamma(SO2-air) less than or equal to 0.111 cm(-1)/atm) and nitrogen (0.095 cm(-1)/atm less than or equal to gamma(SO2-N2) less than or equal to 0.124 cm(-1)/atm), a weaker quantum number dependence of the broadening coefficients could be observed, in contrast to theoretical values. (C) 1996 Academic Press, Inc. [References: 21]
机译：通过以脉冲模式应用二极管激光光谱仪，以SO2，空气和氮气作为扰动剂，测量了nu（1）波段中SO2跃迁的碰撞线展宽。来自P分支的18行（5个小于或等于J''小于或等于44,0小于等于K-a''小于或等于20），来自Q分支的8行（10小于或等于J''小于或等于40，1小于或等于K-a''小于或等于23，以及从R分支开始的五行（小于或等于J'的12行）小于或等于35，小于或等于K-a''小于或等于8）。自增系数γ（SO2-SO2）显示出随着量子数K-a''的增加而显着降低，正如理论所预期的那样，并且在0.41至0.16 cm（-1）/ atm之间变化。对于较小的量子数，发现与理论预测有一些巧合，而对于较大的量子数，则发生更强的偏差。在与空气（0.081 cm（-1）/ atm小于或等于gamma（SO2-空气）小于或等于0.111 cm（-1）/ atm）和氮气（0.095 cm（-1）的碰撞中/ atm小于或等于gamma（SO2-N2）小于或等于0.124 cm（-1）/ atm），与理论值相比，可以观察到较弱的量子系数对加宽系数的依赖性。 （C）1996 Academic Press，Inc. [参考：21]

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