Production of low-energy electrons by ionizing radiation
Production of low-energy electrons by ionizing radiation
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DOI：
10.1016/j.radphyschem.2007.02.012
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发表时间：
2007-08-01
影响因子：
2.9
通讯作者：
LaVerne, Jay A.
中科院分区：
文献类型：
--
作者：
Pimblott, Simon M.;LaVerne, Jay A.
低能电子参与辐射化学的几乎所有物理、物理化学和化学现象，并在决定电离辐射化学效应方面发挥核心作用。对它们的生产进行详细的定量描述是可取的，但即使是最简单的液体也无法获得。描述了液态水辐射分解过程中产生的低能电子的级联分布。初级离子产生二次电子的最可几能量和平均能量分别类似于9-10 eV和50-60 eV，这取决于初级离子的比能量。测定了所有电子衰减至25 eV时产生的次激发电子的能谱，其平均值也为9 eV。(C)2007爱思唯尔有限公司。保留所有权利。
Low-energy electrons are involved in almost all of the physical, physico-chemical and chemical phenomena underlying radiation chemistry and play a central role in determining the effects of ionizing radiation chemistry. A detail quantitative description of their production is desirable, but not available in even the simplest liquids. The distribution defining the cascade of low-energy electrons produced in the radiolysis of liquid water is characterized. The most probable energy and mean energy for secondary electron produced by a primary ion are similar to 9-10 and 50-60 eV, respectively, depending on the specific energy of the primary ion. The energy spectrum of the sub-excitation electrons produced by attenuation of all electrons to < 25eV is determined, and its mean is also 9 eV. (c) 2007 Elsevier Ltd. All rights reserved.