Dissociative excitation of SO2 by electron impact
Dissociative excitation of SO2 by electron impact
复制标题
通过电子碰撞解离激发 SO2
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
J. McConkey
中科院分区：
文献类型：
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作者：
W. Kedzierski;C. Malone;J. McConkey
在阈值到400 eV的能量范围内，研究了SO2通过电子冲击离解激发产生激发态氧碎片，特别是O （1S）。确定了三种导致O （1S）生成的过程，并确定了FranckCondon地区SO2的相关排斥态的位置。本文还建立了这两种状态的多重性和对称性。在150 eV下，所有通道产生O （1S）的绝对横截面测量为2.2 x 10-18 cm2。测量了从阈值到400 eV生成O （3p 3p和3p 5P）的相对截面。迄今为止尚未确定的SO2三态态的存在，它在近红外波段发射。pac。: 34.80 g
Dissociative excitation of SO2 by electron impact to produce excited oxygen fragments, in particular O (1S), has been studied in the energy range from threshold to 400 eV. Three processes leading to O (1S) production have been identified and the positions of the relevant repulsive states of SO2 in the FranckCondon region have been determined. The multiplicities and symmetry characteristics of two of these states have also been established. The absolute cross section for production of O (1S) by all channels is measured to be 2.2 x 10-18 cm2 at 150 eV. The relative cross section for production of O (3p 3P and 3p 5P) from threshold to 400 eV has also been measured. The existence of a hitherto unidentified triplet state of SO2 that emits in the near infra red has been established. PACS No.: 34.80Gs