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K-shell ionization during alpha decay of polonium isotopes and superheavy nuclei

机译：K-壳电离在α衰减期间的polonium同位素和超核核

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The theory of K-shell ionization during a decay of the Po-84 isotopes is considered in detail as a part of our general study of the inner shell ionization probability of heavy and superheavy nuclei. Calculations of K-shell ionization with allowance made for the alpha-particle tunneling through the atomic Coulomb barrier have been performed in the framework of the fully quantum mechanical treatment developed for the first time by Anholt and Amundsen. Further information is available [ Anholt and Amundsen, Phys. Rev. A 25, 169 (1982)]. As distinct from all previous the K-shell ionization calculations where the Dirac hydrogenlike wave functions have been used, we have found the discrete and continuum electron wave functions in the framework of the relativistic self-consistent Dirac-Fock method. In addition, we have taken into consideration accurately terms associated with the alpha-particle tunneling. Our exact calculations show that the tunneling contribution to the ionization probability is of great importance while Anholt and Amundsen have asserted that the contribution is small. We have obtained that the K-shell ionization probability during a decay of five isotopes of Po-84 correlate better with the available experimental data providing the tunneling is included in calculations. New calculations for K-shell ionization during a decay of superheavy elements Fm-249(100), No-253(102), (272)(111)Rg, as well as Rn-222(86) are also presented. The data may be of importance in the combined alpha,gamma, and conversion-electron spectroscopy used in the superheavy element synthesis analysis.
机译：K-Shell电离在PO-84同位素的衰减期间的理论被详细考虑，作为我们对重度和过度核的内壳电离概率的一般性研究的一部分。通过原子库族屏障对α-粒子隧穿的余量进行允许的k-壳电离的计算已经在anholt和Amundsen首次开发的完全量子机械处理的框架中进行。提供更多信息[Anholt和Amundsen，Phys。 Rev. A 25,169（1982）]。除了以前的所有k-shell电离计算中，在使用DIRAC氢化波函数的情况下，我们已经发现了在相对论自我一致的狄拉基套筒框架的框架中的离散和连续的电子波起作用。此外，我们已经考虑了与α-粒子隧道相关的准确术语。我们的确切计算表明，隧道对电离概率的贡献非常重要，而Anholt和Amundsen则断言贡献很小。我们已经获得了在PO-84的五个同位素的衰减期间的K-Shell电离概率随着提供隧道的可用实验数据而较好地相关。还介绍了在过硫型元素FM-249（100），NO-253（102），NO-253（102），NO-253（102），（111）RG以及RN-222（86）的衰减过程中的新计算。数据在超α，γ和转化 - 电子光谱中可能具有重要性，用于过度元素合成分析。

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