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Impact of a minority relativistic electron tail interacting with a thermal plasma containing high-atomic-number impurities
Physics of Plasmas ( IF 2.2 ) Pub Date : 2020-04-01 , DOI: 10.1063/5.0003638
Nathan A. Garland 1 , Hyun-Kyung Chung 2 , Christopher J. Fontes 1 , Mark C. Zammit 1 , James Colgan 1 , Todd Elder 1, 3 , Christopher J. McDevitt 1, 4 , Timothy M. Wildey 5 , Xian-Zhu Tang 1
Affiliation  

A minority relativistic electron component can arise in both laboratory and naturally-occurring plasmas. In the presence of high-atomic-number ion species, the ion charge state distribution at low bulk electron temperature can be dominated by relativistic electrons, even though their density is orders of magnitude lower. This is due to the relativistic enhancement of the collisional excitation and ionization cross sections. The resulting charge state effect can dramatically impact the radiative power loss rate and the related Bethe stopping power of relativistic electrons in a dilute plasma.

中文翻译:

少数相对论电子尾与含有高原子序数杂质的热等离子体相互作用的影响

少数相对论电子分量可以在实验室和自然发生的等离子体中出现。在存在高原子数离子种类的情况下,低体电子温度下的离子电荷态分布可以由相对论电子主导,即使它们的密度要低几个数量级。这是由于碰撞激发和电离截面的相对论增强。由此产生的电荷态效应会显着影响辐射功率损失率和稀释等离子体中相对论电子的相关 Bethe 停止能力。
更新日期:2020-04-01
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