Electron inelastic-scattering cross sections in liquid water

被引:243
作者
Dingfelder, M
Hantke, D
Inokuti, M
Paretzke, HG
机构
[1] GSF, Natl Res Ctr Environm & Hlth, Inst Radiat Protect, D-85764 Neuherberg, Germany
[2] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA
关键词
D O I
10.1016/S0969-806X(97)00317-4
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
Electron inelastic-scattering cross-section data for use as input in electron track-structure calculations in liquid water are re-examined and improved. The dielectric-response function used in such cross-sections is estimated on the basis of optical data and other experimental and theoretical information. The mean excitation energy for stopping power is obtained to be 81.8 eV, which is close to the recent experimental value, 79.75 +/- 0.5 eV, of Bichsel and Hiraoka. Inelastic-scattering cross sections are evaluated within the first Born approximation. Electron-exchange effects and semi-empirical corrections to account for non-Born effects at low energies are also incorporated. (C) 1998 Elsevier Science Ltd. All rights reserved.
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页码:1 / 18
页数:18
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