Laboratory studies of radiation effects in water ice in the outer solar system

被引:29
作者
Baragiola, RLA [1 ]
Loeffler, MJ [1 ]
Raut, U [1 ]
Vidal, RA [1 ]
Wilson, CD [1 ]
机构
[1] Univ Virginia, Lab Atomic & Surface Phys, Charlottesville, VA 22904 USA
基金
美国国家科学基金会;
关键词
ice radiolysis; amorphization; sputtering; hydrogen peroxide (H2O2); hydroperoxyl radical (HO2); electron-energy-loss spectroscopy (EELS);
D O I
10.1016/j.radphyschem.2004.09.013
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
We present new experimental results on radiolysis of water ice below 140K induced by 150-eV electrons and 100-keV ions, obtained to understand processes occurring in the outer solar system and interstellar space. The experimental methods discussed are low-energy electron-energy-loss spectroscopy (EELS) and Fourier-transform-infrared (FTIR) spectroscopy. The phenomena studied are the formation and trapping of radiation products. in particular H2O2 and radiation-induced amorphization of crystalline ice. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:187 / 191
页数:5
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