CCl4 在 1.5-100 eV 能量电子碰撞下的弹性电子散射微分截面。

Differential elastic electron scattering cross sections for CCl4 by 1.5-100 eV energy electron impact.

机构信息

Department of Physics, Sophia University, Chiyoda-ku, Tokyo 102-8554, Japan.

出版信息

J Chem Phys. 2011 Dec 21;135(23):234309. doi: 10.1063/1.3669429.

PMID:22191877

Abstract

We report absolute elastic differential, integral and momentum transfer cross sections for electron interactions with CCl(4). The incident electron energy range is 1.5-100 eV, and the scattered electron angular range for the differential measurements varies from 15°-130°. The absolute scale of the differential cross section was set using the relative flow technique with helium as the reference species. Comparison with previous total cross sections shows good agreement. Atomic-like behaviour in this scattering system is shown here for the first time, and is further investigated by comparing the CCl(4) elastic cross sections to recent results on the halomethanes and atomic chlorine at higher impact energies [H. Kato, T. Asahina, H. Masui, M. Hoshino, H. Tanaka, H. Cho, O. Ingólfsson, F. Blanco, G. Garcia, S. J. Buckman, and M. J. Brunger, J. Chem. Phys. 132, 074309 (2010)].

摘要

我们报告了电子与 CCl(4) 相互作用的绝对弹性微分、积分和动量转移截面。入射电子能量范围为 1.5-100 eV，微分测量的散射电子角度范围从 15°-130°。微分截面的绝对标度是使用氦作为参考物质的相对流动技术来设置的。与之前的总截面进行比较，结果吻合较好。在这里，首次在这个散射系统中展示了类原子行为，并通过将 CCl(4) 的弹性截面与最近在更高冲击能下对卤代甲烷和原子氯的结果进行比较进一步进行了研究[H. Kato、T. Asahina、H. Masui、M. Hoshino、H. Tanaka、H. Cho、O. Ingólfsson、F. Blanco、G. Garcia、S. J. Buckman 和 M. J. Brunger，J. Chem. Phys. 132，074309（2010）]。