Cross sections for OH transitions due to electron impact on water molecules
Cross sections for OH transitions due to electron impact on water molecules
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由于电子对水分子的影响而产生的 OH 跃迁的横截面
DOI：
10.1103/physreva.73.052702
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发表时间：
2006
影响因子：
2.9
通讯作者：
E. Urban
中科院分区：
文献类型：
--
作者：
R. S. Schappe;E. Urban
我们测量了电子（9-700 eV）入射到水分子上的绝对横截面。通过将合成振动带拟合到实验发射光谱中，我们测量了OH A {sup 2}{sigma}{sup +}-X {sup 2}{pi}（0,0）、（0,1）、（1,0）、（1,1）、（2,1）、（2,2）、（3,2）和（3,3）波段的发射截面。横截面上的分支分数与我们在射频放电发射中测量的分数和我们计算的跃迁率一致。我们还计算了A {sup 2}{sigma}{sup +}v{sup '}= 0,1,2和3振动能级的表观水平截面，其中预解离的影响是明显的。
We have measured absolute cross sections for electrons (9-700 eV) incident on water molecules. By fitting synthetic vibrational bands to the experimental emission spectra, we measured the emission cross sections for the OH A {sup 2}{sigma}{sup +}-X {sup 2}{pi} (0,0), (0,1), (1,0), (1,1), (2,1), (2,2), (3,2), and (3,3) bands. The branching fractions from our cross sections are consistent with those we measured in the emission of a rf discharge and with our calculated transition rates. We have also calculated apparent level cross sections for the A {sup 2}{sigma}{sup +}v{sup '}=0, 1, 2, and 3 vibrational levels where the effects of predissociation are obvious.