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Spallation, cosmic rays, meteorites, and planetology
Progress in Particle and Nuclear Physics ( IF 9.6 ) Pub Date : 2019-11-01 , DOI: 10.1016/j.ppnp.2019.103711
J.-C. David , I. Leya

In this review article we present some of the major applications for cosmogenic nuclide studies; extraterrestrial applications on meteorites, lunar surface samples but also on interstellar grains and terrestrial applications ranging from ages for exposure and burial over erosion and denudation rates to uplift and soil dynamics. For all the applications a good knowledge of the cosmogenic nuclide production rates is indispensable. Since it is neither possible nor feasible measuring production rates for all possible set-ups and geometries they are usually calculated using the particle spectra for primary and secondary particles and the cross sections for the relevant nuclear reactions. Considering the reacting particles we also discuss in some detail the basic properties of solar and galactic cosmic rays, especially we focus on the temporal variability. With a good understanding of the projectile types, a very relevant step is to understand and model the induced nuclear reactions. In doing so, we will briefly discuss the basic properties of spallation reactions and we especially focus on the recent very impressive improvements. We finish with a short outlook of the next possible steps for further improvements.

中文翻译:

散裂、宇宙射线、陨石和行星学

在这篇评论文章中,我们介绍了宇宙成因核素研究的一些主要应用;陨石、月球表面样本的外星应用,以及星际颗粒和陆地应用,范围从暴露和埋藏年代侵蚀和剥蚀率到隆起和土壤动力学。对于所有应用,对宇宙成因核素生产率的充分了解是必不可少的。由于测量所有可能的设置和几何形状的生产率既不可能也不可行,因此通常使用初级和次级粒子的粒子谱以及相关核反应的横截面来计算。考虑到反应粒子,我们还详细讨论了太阳和银河宇宙射线的基本特性,我们尤其关注时间可变性。充分了解射弹类型后,一个非常相关的步骤是了解诱导核反应并对其进行建模。在此过程中,我们将简要讨论散裂反应的基本特性,并特别关注最近令人印象深刻的改进。最后,我们简要介绍了下一步可能采取的进一步改进措施。
更新日期:2019-11-01
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