论文标题
$^{229} $ th的核激发横截面通过非弹性电子散射
Nuclear excitation cross section of $^{229}$Th via inelastic electron scattering
论文作者
论文摘要
$^{229} $ th的核激发横截面通过非弹性电子散射从地面状态到低洼异构体状态，以dirac扭曲的波生近似的水平计算。由于电子能量低于100 eV，异质激发的非弹性散射非常有效，因此在10 $^{ - 27} $至10 $^{ - 26} $ cm $^2 $的顺序上产生激发横截面。系统的分析介绍了影响激发横截面的要素，包括离子核电位，相对论效应，降低的核转变概率的知识等等。
Nuclear excitation cross section of $^{229}$Th from the ground state to the low-lying isomeric state via inelastic electron scattering is calculated, on the level of Dirac distorted wave Born approximation. With electron energies below 100 eV, inelastic scattering is very efficient in the isomeric excitation, yielding excitation cross sections on the order of 10$^{-27}$ to 10$^{-26}$ cm$^2$. Systematic analyses are presented on elements affecting the excitation cross section, including the ion-core potential, the relativistic effect, the knowledge of the reduced nuclear transition probabilities, etc.
