Radiative Double-Electron Capture by Bare and One-Electron Ions on Gas Targets

被引：5

作者：

La Mantia, D. S. ^{[1
]}

Kumara, P. N. S. ^{[1
]}

Buglione, S. L. ^{[1
]}

McCoy, C. P. ^{[1
]}

Taylor, C. J. ^{[1
]}

White, J. S. ^{[1
]}

Kayani, A. ^{[1
]}

Tanis, J. A. ^{[1
]}

机构：

[1] Western Michigan Univ, Kalamazoo, MI 49008 USA

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 124卷 / 13期

基金：

美国国家科学基金会;

关键词：

HEAVY-IONS; COLLISIONS;

D O I：

10.1103/PhysRevLett.124.133401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 for 2.11 MeV/u F9+ and F8+ ions striking gas targets of N-2 and Ne. The existence of RDEC is conclusively shown for both targets and the results are compared with earlier O8+ and F9+ findings 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.

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页数：5

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