Radiative Double-Electron Capture by Bare and One-Electron Ions on Gas Targets
Radiative Double-Electron Capture by Bare and One-Electron Ions on Gas Targets
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裸电子离子和单电子离子对气体靶材的辐射双电子捕获
DOI：
10.1103/physrevlett.124.133401
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发表时间：
2020
影响因子：
8.6
通讯作者：
Tanis, J. A.
中科院分区：
文献类型：
--
作者：
La Mantia, D. S.;Kumara, P. N. S.;Buglione, S. L.;McCoy, C. P.;Taylor, C. J.;White, J. S.;Kayani, A.;Tanis, J. A.
辐射双电子俘获(RDEC)是指两个电子同时发射一个单光子的过程。这一过程可以看作是双光电离的逆过程，研究了离子撞击气体靶的过程。对两种靶材的RDEC的存在进行了确凿的证明，并将其结果与前人对薄箔碳的研究结果和理论进行了比较。碳靶的数据显示了RDEC存在的一些证据，但解释受到高概率、不可避免的多次碰撞的影响，导致存在的电荷态增加。
Radiative double-electron capture (RDEC) involves the transfer of two electrons with the simultaneous emission of a single photon. This process, which can be viewed as the inverse of double photoionzation, has been studied forandions striking gas targets ofand Ne. The existence of RDEC is conclusively shown for both targets and the results are compared with earlierandfindings for thin-foil carbon and with theory. The data for the carbon target showed some evidence for the existence of RDEC, but the interpretation was clouded by high-probability, unavoidable multiple collisions causing the exiting charge state to be increased.