Measurement of absolute differential excitation cross sections of molecular oxygen by electron impact: decomposition of the Herzberg pseudocontinuum

被引：0
|
作者：
Shyn, Tong W. [1 ]
Sweeney, Christopher J. [1 ,2 ]
机构：
[1] Space Physics Research Laboratory, University of Michigan, Ann Arbor, MI 48109-2143, United States
[2] Department of Physics, University of Michigan, Ann Arbor, MI 48109-1120, United States
来源：
Physical Review A - Atomic, Molecular, and Optical Physics | 2000年 / 62卷 / 02期
关键词：
Data reduction - Decomposition - Electrodynamics - Electron beams - Electron scattering - Least squares approximations - Molecules - Oxygen - Potential energy - Spectroscopic analysis;
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学科分类号：
摘要：
The decomposition of low-energy electron-impact spectra of the pseudocontinuum was explored. More than 650 energy-loss spectra, covering the scattering angle and impact energy ranges of 12°-156° and 10-30 eV, were measured. Analysis of the data by means of a computerized least-squares technique yielded absolute differential-excitation cross sections for each state, along with an approximation for each state's potential-energy curve in the Franck-Condon region. Absolute integrated cross sections were derived from the differential ones.
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页码：022711 / 022711
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