Electron-electron interaction in strong central fields studied by resonant transfer and excitation with two-photon processes in U91+-H-2 collisions
文献类型：期刊论文
| 作者 | Ma, X; Mokler, PH; Bednarz, G; Bosch, F; Gumberidze, A; Kozhuharov, C; Liesen, D; Sierpowski, D; Stachura, Z; Stohlker, T |
| 刊名 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
 |
| 出版日期 | 2003-05-01 |
| 卷号 | 205页码:550-554 |
| 关键词 | e-e interaction relativistic effects resonant transfer and excitation dielectronic recombination alignment doubly excited heavy He-like ions |
| ISSN号 | 0168-583X |
| DOI | 10.1016/S0168-583X(03)00562-7 |
| 英文摘要 | We studied the angular distribution of the X-ray emission associated with KLL-RTE for H-like U91+ ions colliding with quasi-free electrons from an H, target. In this resonant transfer and excitation process an intermediate doubly excited He-like U90+** with two electrons in the L-shell is produced by electron-electron interaction; this exotic state decays by the emission of two photons, a Kalpha-hypersatellite and a Kalpha-satellite X-ray. According to the different j values (1/2 and 3/2) for the L-shell electrons three different KLL-RTE resonance groups can be distinguished by the corresponding ion energies. At the three resonance energies and one off-resonance energy (116.6, 124.9, 133.1 and 102.0 MeV/u, respectively) X-ray spectra were taken simultaneously at seven different observation angles. The Kalpha2 satellite lines (j = 1/2-j = 1/2 transitions) are isotropic, whereas the Kalpha1 hypersatellite lines (3/2-1/2 transitions) for the second resonance display a pronounced anisotropy pointing to a strong alignment of the involved doubly excited states. Our data agree with full relativistic theory in its general features. (C) 2003 Elsevier Science B.V. All rights reserved. |
| WOS关键词 | ANGULAR-DISTRIBUTION ; U90+->C COLLISIONS ; AUGER ELECTRONS ; LIGHT TARGETS ; URANIUM IONS ; CAPTURE |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000183211200106 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://119.78.100.186/handle/113462/38394]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Ma, X |
| 作者单位 | 1.GSI Darmstadt, D-64291 Darmstadt, Germany 2.Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Jagiellonian Univ, PL-30059 Krakow, Poland 4.IFJ, PL-31342 Krakow, Poland |
| 推荐引用方式 GB/T 7714 | Ma, X,Mokler, PH,Bednarz, G,et al. Electron-electron interaction in strong central fields studied by resonant transfer and excitation with two-photon processes in U91+-H-2 collisions[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,2003,205:550-554. |
| APA | Ma, X.,Mokler, PH.,Bednarz, G.,Bosch, F.,Gumberidze, A.,...&Warczak, A.(2003).Electron-electron interaction in strong central fields studied by resonant transfer and excitation with two-photon processes in U91+-H-2 collisions.NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS,205,550-554. |
| MLA | Ma, X,et al."Electron-electron interaction in strong central fields studied by resonant transfer and excitation with two-photon processes in U91+-H-2 collisions".NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS 205(2003):550-554. |
入库方式： OAI收割
来源：近代物理研究所
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