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您的检索式：作者名="S.Fritzsche"
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| 1 | Characteristics of X/γ-ray radiations by intense laser interactions with high-Z solids: The role of bremsstrahlung and radiation reactions显示文摘In this work, characteristics of X/γ-ray radiations by intense laser interactions with high-Z solids are investigated by means of a newlydeveloped particle-in-cell (PIC) simulation code. The PIC code takes advantage of the recently developed ionization and collision dynamicsmodels, which make it possible to model different types of materials based on their intrinsic atomic properties. Within the simulations, bothbremsstrahlung and nonlinear Compton scatterings have been included. Different target materials and laser intensities are considered forstudying the parameter-dependent features of X/γ-ray radiations. The relative strength and angular distributions of X/γ ray productions frombremsstrahlung and nonlinear Compton scatterings are compared to each other. The threshold under which the nonlinear Compton scatteringsbecome dominant over bremsstrahlung is also outlined. | D.Wu W.Yu Y.T.Zhao S.Fritzsche X.T.He | 2018 | Matter and Radiation at Extremes2018，3，6： | 1 |
| 2 | Proton beams from intense laser-solid interaction:Effects of the target materials显示文摘We report systematic studies of laser-driven proton beams produced with micrometer-thick solid targets made of aluminum and plastic,respectively.Distinct effects of the target materials are found on the total charge,cutoff energy,and beam spot of protons in the experiments,and these are described well by two-dimensional particle-in-cell simulations incorporating intrinsic material properties.It is found that with a laser intensity of 8×10^(19) W/cm^(2),target normal sheath acceleration is the dominant mechanism for both types of target.For a plastic target,the higher charge and cutoff energy of the protons are due to the greater energy coupling efficiencies from the intense laser beams,and the larger divergence angle of the protons is due to the deflection of hot electrons during transport in the targets.We also find that the energy loss of hot electrons in targets of different thickness has a significant effect on the proton cutoff energy.The consistent results obtained here further narrow the gap between simulations and experiments. | Y.X.Geng D.Wu W.Yu Z.M.Sheng S.Fritzsche Q.Liao M.J.Wu X.H.Xu D.Y.Li W.J.Ma H.Y.Lu Y.Y.Zhao X.T.He J.E.Chen C.Lin X.Q.Yan | 2020 | Matter and Radiation at Extremes2020，5，6： | 0 |
| 3 | Two-electron QED Studies for Helium-like Uranium显示文摘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 | 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 | 2002 | 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，，1： | 0 |
| 4 | The atomic structure and the properties of Ununbium (Z=112) and Mercury (Z=80)显示文摘A super heavy element Uub (z = 112) has been studied theoretically in conjunction with rela-tivistic effects and the effects of electron correlations.The atomic structure and the oscillator strengths of low-lying levels have been calculated,and the ground states have also been determined for the singly and doubly charged ions. The influence of relativity and correlation effects to the atomic properties of such a super heavy element has been investigated in detail. The results have been compared with the properties of an element Hg. Two energy levels at wave numbers 64470 and 94392 are suggested to be of good candidates for experimental observations. | S.FRITZSCHE B.FRICKE | 2007 | Science China(Physics,Mechanics & Astronomy)2007，50，6： | 0 |
| 5 | Uub(Z=112)和Hg(Z=80)元素的原子结构和激发态性质显示文摘在全相对论理论框架下,通过细致考虑电子关联效应和Breit相互作用,计算了Uub(Z=112)和Hg(Z=80)原子的激发态结构、共振吸收振子强度及其一价和二价离子的基态.通过与同族Hg元素的比较,进一步分析了相对论效应和电子关联效应对Uub元素的价轨道性质、激发态结构及一价和二价离子的基态的影响,并预言了Uub元素的两个可能被实验观测到的共振态的能级位置和吸收振子强度. | 李冀光 董晨钟 俞友军 丁晓彬 S.Fritzsche B.Fricke | 2007 | 中国科学(G辑)2007，37，4： | 0 |
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