Energy dependence of electron stopping powers in elemental solids over the 100 eV to 30 keV energy range

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:267

Article

Kumagai, K.¹  Tanuma, S.²  Powell, C. J.³ 

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3050044, Japan

[2] Natl Inst Mat Sci, Mat Anal Stn, Tsukuba, Ibaraki 3050047, Japan

[3] Natl Inst Stand & Technol, Surface & Microanal Sci Div, Gaithersburg, MD 20899 USA

关键词: Electron stopping power;    Fano plot;    Elemental solids;    Energy dependence;   

DOI  :  10.1016/j.nimb.2008.10.094

来源: Elsevier

【 摘 要 】

We analyzed the energy dependence of electron stopping powers (SPs) calculated for 41 elemental solids from experimental optical data for electron energies between 100 eV and 30 keV. Our analysis was performed with the Hill equation to represent a series of steps in plots of the slopes of Fano plots. The average root-mean-square difference between SPs from fits with an equation derived from the Hill equation and the calculated SPs was 1.0%. The new equation can provide SPs over a wide energy range for Monte Carlo simulations of electron transport with the continuous slowing-down approximation. (c) 2008 Elsevier B.V. All rights reserved.

【 授权许可】

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