Instituto de Física Fundamental, Consejo Superior de Investigaciones Científicas, Serrano 113-bis, 28006 Madrid, Spain.
J Chem Phys. 2013 Nov 14;139(18):184310. doi: 10.1063/1.4829771.
Total electron scattering cross sections for pyrazine in the energy range 10-500 eV have been measured with a new magnetically confined electron transmission-beam apparatus. Theoretical differential and integral elastic, as well as integral inelastic, cross sections have been calculated by means of a screening-corrected form of the independent-atom representation (IAM-SCAR) from 10 to 1000 eV incident electron energies. The present experimental and theoretical total cross sections show a good level of agreement, to within 10%, in the overlapping energy range. Consistency of these results with previous calculations (i.e., the R-matrix and Schwinger Multichannel methods) and elastic scattering measurements at lower energies, below 10 eV, is also discussed.
已使用新型磁约束电子传输束装置测量了 10-500 eV 能区吡嗪的总电子散射截面。通过使用独立原子表象（IAM-SCAR）的屏蔽修正形式，从 10 到 1000 eV 的入射电子能量，计算了理论微分和积分弹性以及积分非弹性截面。在重叠能区，本实验和理论总截面的吻合程度很好，在 10%以内。还讨论了这些结果与先前计算（即 R 矩阵和 Schwinger 多通道方法）和较低能量（10 eV 以下）弹性散射测量的一致性。
