Coster-Kronig electrons from Nq+ (q=1-3) and Oq+ (q=1,2) Rydberg states produced in high-energy collisions with He

被引：8

作者：

Kawatsura, K. ^{[1
,2
]}

Takahiro, K. ^{[1
]}

Sataka, M. ^{[3
]}

Imai, M. ^{[4
]}

Sugai, H. ^{[3
]}

Ozaki, K. ^{[1
]}

Kawaguchi, K. ^{[1
]}

Shibata, H. ^{[4
]}

Komaki, K. ^{[5
]}

机构：

[1] Kyoto Inst Technol, Dept Chem & Mat Technol, Sakyo Ku, Kyoto 6068585, Japan

[2] Theoret Radiat Res Lab, Sakyo Ku, Kyoto 6060966, Japan

[3] Japan Atom Energy Agcy, Nucl Sci Res Inst, Adv Sci Res, Tokai, Ibaraki 3191195, Japan

[4] Kyoto Univ, Dept Nucl Engn, Sakyo Ku, Kyoto 6068501, Japan

[5] Natl Ctr Univ Entrance Examinat, Meguro Ku, Tokyo 1538501, Japan

来源：

14TH INTERNATIONAL CONFERENCE ON THE PHYSICS OF HIGHLY CHARGED IONS (HCI 2008) | 2009年 / 163卷

关键词：

DOUBLE CAPTURE; IONS; SPECTROSCOPY; SPECTRA; FOIL; VELOCITY;

D O I：

10.1088/1742-6596/163/1/012048

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coster-Kronig (C-K) electrons ejected through autoionization decay of high-Rydberg states in high-energy collisions of Nq+ (q = 1-3) and Oq+ (q = 1,2) with He have been measured with high resolution by using zero-degree electron spectroscopy. Autoionizing lines are observed corresponding to decays from 1s(2)2p(P-2)nl Rydberg states for 21 MeV N3+ + He, from 1s(2)2s2p(P-3)nl Rydberg states for 21 MeV N2+ + He and from 1s(2)2s2p(2)(P-4)nl Rydberg states for 14 MeV N+ + He, respectively. Angular momentum distributions of these three series of C-K decaying Rydberg states for Nq+ (q = 1-3) projectiles are also discussed, where the highly excited states are formed by single-electron excitation. Similarly, series of the autoionizing Rydberg states are observed for two charge states of incident 0 ions. The C-K spectra observed can be assigned to decays from 1s(2)2s2p(2)(P-4)nl states for 30 MeV O2+ + He and from 1s(2)2s2p(3)(S-5)nl states for 15 MeV O+ + He.

引用

页数：6

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