A new model of the chemistry of ionizing radiation in solids: CIRIS.
A new model of the chemistry of ionizing radiation in solids: CIRIS.
复制标题
固体中电离辐射化学的新模型：CIRIS。
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
E. Herbst
中科院分区：
文献类型：
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作者：
C. Shingledecker;R. Le Gal;E. Herbst
高能离子和固体之间的碰撞会对材料产生重大的物理和化学变化。这些效应对于更好地理解星际和行星体的化学性质具有潜在的重要意义，它们分别暴露在宇宙辐射和太阳风中；然而，迄今为止，在详细的微观基础上建立这种碰撞的模型在很大程度上是不成功的。为此目的，建立了一个名为CIRIS的新模型：固体中电离辐射的化学作用，以计算固体材料辐照的物理和化学作用。利用新代码，我们模拟了100kev质子辐照下的O2冰。我们的模型能够再现先前实验研究中测量到的臭氧丰度，并独立预测该工作中使用的冰的大致厚度。
The collisions between high-energy ions and solids can result in significant physical and chemical changes to the material. These effects are potentially important for better understanding the chemistry of interstellar and planetary bodies, which are exposed to cosmic radiation and the solar wind, respectively; however, modeling such collisions on a detailed microscopic basis has thus far been largely unsuccessful. To that end, a new model, entitled CIRIS: the Chemistry of Ionizing Radiation in Solids, was created to calculate the physical and chemical effects of the irradiation of solid materials. With the new code, we simulate O2 ice irradiated with 100 keV protons. Our models are able to reproduce the measured ozone abundances of a previous experimental study, as well as independently predict the approximate thickness of the ice used in that work.