Radial distribution of electron spectra from high-energy ions
Radial distribution of electron spectra from high-energy ions
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DOI：
10.1007/s004110050127
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发表时间：
1998-12-01
影响因子：
1.7
通讯作者：
Wilson, JW
中科院分区：
文献类型：
--
作者：
Cucinotta, FA;Katz, R;Wilson, JW
平均径迹模型使用径向剂量分布作为关键的物理描述符来描述物理和生物系统的响应。我们报告了该模型的一个扩展，以描述电子能谱的平均分布作为与离子径向距离的函数。我们提出了相同的线性能量传递（LET），但不同的电荷和速度离子的这些谱的计算，以评估这些离子的电子谱的差异。为了说明径向电子能谱在描述不能用电子剂量描述的效应方面的有用性，我们考虑了离子微剂量分布中间接事件的评价。我们表明，将我们的平均电子能谱模型与实验确定的光子或电子的频率分布折叠起来，可以很好地表示0.5-2 μ m位点高能离子的径向事件能谱。
The average track model describes the response of physical and biological systems using radial dose distribution as the key physical descriptor. We report on an extension of this model to describe the average distribution of electron spectra as a function of radial distance from an ion. We present calculations of these spectra for ions of identical linear energy transfer (LET), but dissimilar charge and velocity to evaluate the differences in electron spectra from these ions. To illustrate the usefulness of the radial electron spectra for describing effects that are not described by electron dose, we consider the evaluation of the indirect events in microdosimetric distributions for ions. We show that folding our average electron spectra model with experimentally determined frequency distributions for photons or electrons provides a good representation of radial event spectra from high-energy ions in 0.5-2 mu m sites.