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q and Z Dependence of Two-electron Processes in Low Energy Ion Collisions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2002年第1期 78-78页

作者： CaiXiaohong YuDeyang ChenXimeng LuRongchun CaoZhurong YangWei ShaoCaojie maxinwen 不详 DepartmentofModernPhysics LanzhouUniversityLanzhouChina.

Charge-changing processes between highly charged ion-atom collisions are of great importance in applied fields such as fusion plasmas and astrophysics. They are also of interest in basic atomic physics, especially in the understanding of the multi-electron processes. Until now, the major processes in low energy ion-atom collisions are understood, and can be described by classical over-barrier model and coupled channel calculations. For larger number of active electrons and for higher projectile charges the number of needed states becomes

关键词：低能离子碰撞双电子过程电荷改变过程离子原子碰撞原子物理学俘获辐射

Strong Alignment Observed in Resonant Transfer and Excitation for U^(91+) on H_2

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2003年第1期 91-91页

作者： maxinwen P.H.Mokler F.Bosch A.Gumberidze C.Kozhuharov D.Liesen D.Sierpowski Z.Stachura Th.Stohlker A.Warczak 不详 GSI（GesellschaftfurSchwerIonenforschung） DarmstadtGermany. JagiellonianUniversity InstituteofPhysics.KrakowPoland. InstituteofNuclearPhysics KrakowPoland.

For the heaviest and simplest atomic system resonant transfer and excitation involving the innermost shell shave been investigated . We measured for H-like U^91.+ projectiles the KLjLj-RTE Using a H(2) gas target providing the narrowest possible Compton profile for atomically confined quasi-free target electrons. We studied the emission patterns of the cascade decay of doubly excited He-like U90^+ ions where the first hypersatellite (Kαi-H) and the second satellite (Kαi′-S) transitions are energetically separated . Although the REC cascadecontributions to the satellite lines (Kαi′-S) dominate, the RTE contributions could be isolated. In particular,the hypersatellite (Kαi-H) transitions are free of REC contributions - neglecting possible small interference effects.

关键词：准自由目标电子铀离子能量独立散射模型原子物理学

Polarization Measurements in Radiative Electron Capture into High-Z Ions

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2002年第1期 77-77页

作者： F.Bosch A.Gumberidze S.Hagmann C.Kozhuharov Th.Krings A.OrsicMuthig D.Protic D.Sierpowski U.Spillmann Z.Stachura A.Warczak maxinwen S.Tachenov Th.Stoehlker D.Banas H.F.Beyer GSI-Darmstadt Germany. IKF UniversityofFrankfurtGermany. KansasStateUniversity USA. InstituteofPhysics CracowUniversityPoland. INP CracowPoland. InstituteofPhysicsSwietokrzyakaAcademy KielcePoland. TbilislStateUniversity Georgia. FZ-3urich Germany. 不详

Recently, there has been great interest in the linear polarization of photons produced by radiative electron capture (REC, the time reversed photoionization in ion-atom collisions). No such data are available for the high-Z regime till now. By using high efficiency by by a new generation of segmented germanium detectors that have energy as well as position resolution this field can be investigated experimentally. The

关键词：高电荷态离子俘获电子辐射极化测量散射截面观测角原子物理学能量谱

Two-electron QED Studies for Helium-like Uranium

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2002年第1期 75-75页

作者： maxinwen Th.Stoehlker A.Gumberidze H.F.Beyer G.Bednarz F.Bosch CaiXiaohong S.Fritzsche S.Hagmann C.Kozhuharov O.Klepper D.Liesen P.H.Mokler D.Sierpowski Z.Stachura M.Steck A.Surzhykov S.Toleikis A.Warczak Y.Zou 不详 GSI-Darmstadt Germany. IKF UniversityofFrankfurtGermany InstituteofPhysics CracowUniversityPoland. UniversityofKassel Germany. KansasStateUniversity KansasUSA. INP CracowPoland. FudauUniversity ShanghaiChina.

The study of structure of few-electron heavy ions is of important interest due to the strong field effects. Helium-like ions are the simplest atomic multi-body systems. A considerable improved precision has been made in both theory and experiments recently. The experiment exploits the radiative recombination (RR) transitions into the vacant 1 s shell of bare and H-like ions. In this process, the energy carried by the emitted photon is the energy difference between the initial and final electron state, hω=Ekin+EB. For bare

关键词：类氦铀离子双电子QED效应强场作用少电子重离子结构研究原子物理学基态电子冷却电子