Low-energy electron scattering from atomic hydrogen. I. Ionization

被引：19

作者：

Childers, JG ^{[1
]}

James, KE

Bray, I

Baertschy, M

Khakoo, MA

机构：

[1] Calif State Univ Fullerton, Dept Phys, Fullerton, CA 92834 USA

[2] Murdoch Univ, Sch Math & Phys Sci, Ctr Atom Mol & Surface Phys, Perth, WA 6150, Australia

[3] Univ Colorado, Dept Phys, Denver, CO 80217 USA

来源：

PHYSICAL REVIEW A | 2004年 / 69卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.69.022709

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Absolute doubly differential cross sections for the ionization of atomic hydrogen by electron impact have been measured at energies ranging from near threshold to intermediate values. The measurements are normalized to the accurate differential cross section for the electron-impact excitation of the H 1 S-2-->2 S-2+2 P-2 transition. These measurements were made possible through the use of a moveable target source which enables the collection of hydrogen energy loss spectra free of all backgrounds. The measurements cover the incident electron energy range of 14.6-40 eV and scattering angles from 12degrees to 127degrees, and are in very good agreement with the results of the latest theoretical models-the convergent close-coupling model and the exterior complex scaling model.

引用

页数：10

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