Double K-photoionization of heavy atoms

被引：0

作者：

Kanter, E. P. ^{[1
]}

Dunford, R. W. ^{[1
]}

Krassig, B. ^{[1
]}

Southworth, S. H. ^{[1
]}

Young, L. ^{[1
]}

机构：

[1] Argonne Natl Lab, Argonne, IL 60439 USA

来源：

RADIATION PHYSICS AND CHEMISTRY | 2006年 / 75卷 / 11期

关键词：

X-ray photoionization; double-K ionization; ELECTRON-IMPACT IONIZATION; CROSS-SECTIONS; HYPERSATELLITE SPECTRA; VACANCY PRODUCTION; SHELL IONIZATION; HELIUM; ENERGY; SEQUENCE; SINGLE; HE;

D O I：

10.1016/j.radphyschem.2005.12.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The double K-photoionization of heavy atoms is a rare process which produces a "hollow atom". We have recently conducted a comprehensive study of the energy-dependence of double K-photoionization in Ag (Z = 47) aimed at elucidating the processes contributing. These measurements have served to isolate the effects of the dynamic electron-electron scattering term from the shake-off contribution and demonstrate a significantly larger scattering contribution than in lighter atoms. Based on those results and other measurements in lighter systems, we have developed a quantitative model to predict the energy-dependence of double K-photoionization in other atoms. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1529 / 1533

页数：5

共 31 条

[1] ASYMPTOTIC DOUBLE-PHOTOEXCITATION CROSS SECTIONS OF HELIUM ATOM [J].