低能束箔光谱研究

本文简要介绍近代物理所开展的低能束箔光谱学研究情况以及获得的实验数据（包括Ｎ、Ｏ、Ｎｅ、Ａｒ、Ｆｅ和Ｃｕ等的激发光谱和能级寿命）,并讨论了实验的精度． In this paper, we describle the experiments at IMP and the beam-foil experimental data(including spectra, lifetimes of He, N, O, Ne, Ar, Fe and Cu ions). The accuracy estimated is also given here.     

类铍硫n=2的某些能级寿命的实验研究

主要报导用束箔技术对天体等离子体中重要元素硫的高电离态原子n =2的某些能级寿命的实验测量.实验数据用CANDY程序分析 ,并与理论计算结果和其它的实验结果作了比较. Lifetime measurement has been carried out for some low lying n=2 levels in the four electron ions S ⅩIII by using the beam-foil technique at National Laboratory of Heavy Ion Accelerator, Lanzhoiu, China. Spectra of highly ionized sulfur obtained at an energy of 2.5 MeV/nucleon have been studied in the 190-530  wavelength range. Experimental decay curves are analysized by the CANDY program, and compared with theoretical calculations and experimental measureaments.     

溴的类镁离子跃迁谱线和能级扩展分析

用中国原子能科学研究院HI 13串列加速器提供的 90和 130MeV的Br离子和束箔技术 ,研究了波长在 13— 2 9nm范围内Br的类Mg离子的光谱 .识别出 2 4条属于BrXXIV的“3,3”跃迁 ,即 3s2 ,3s3p ,3p2 ,3s3d和 3p3d组态之间的跃迁谱线 ,其中 19条以前未见报道 .基于实验跃迁谱线 ,19个观测能级得以确立 ,其中有 14个能级此前未见报道 .相对论Hartree Fock(HFR)方法的计算结果对所观测的能级进行了解释.The spectrum of Mg-like Br, Br XXIV is investigated by means of beam-foil technique. Bromine ions of 90 and 130 MeV energy from the HI-13 tandem accelerator are used, and the wavelength region 13-29 nm is investigated. In the spectra, 24 Br XXIV transitions within the n=3 complex, i.e. between the 3s 2, 3s3p, 3p 2, 3s3d and 3p3d configurations are identifies, among them 19 have not been reported before. Based on these transition lines 19 energy levels have been determined and 14 energy level...     

氖的高离化态离子激发光谱和能级寿命测量

采用束箔技术研究47MeV能量的氖离子和不同材料、不同厚度的C箔(39μg/cm²)和Al箔(3.4mg/cm²)相互作用,产生高离化态的类H(Ne X)、类He(Ne Ⅸ)、类Li(Ne　Ⅷ)、类Be(Ne　Ⅶ)等少电子离子,并测量了这些离子的激发光谱和能级寿命.     

高离化态镍的光谱

在中国原子能研究院串列加速器上利用束箔技术研究了120-400 ? 镍的高离化态镍光谱.验Ni XIII to XX研究中得到的谱线大多数属于Ni XIII 到 XX的跃迁,18条谱线是测量到的.     

高电离态原子光谱测量

简要介绍了兰州重离子加速器上的高电离态原子光谱实验测量和取得的部分实验结果.The excitation spectra and level lifetimes of highly charged atoms for heavier elements of Ne, S and Ar have been measured by using the beam foil method on the heavy ion accelerator in Lanzhou. Emission spectra in the wavelength region of 25-400  was studied. On the whole, the agreement between our experimental results and other experiments is fairly good.     

氮,氧和氖离子的跃迁振子强度F—值的确定

本文阐述了通过实验测定Ｎ，Ｏ和Ｎｅ离子的激发能级寿命来确定跃迁振子强度Ｆ－值的方法，并给出主要理论公式和确定结果。     

进入辛流形映射的Schrdinger流

自然地引出了进入辛流形映射的SchrÖdinger流的概念 .建立了从单位圆周S¹ 进入K hler流形映射的SchrÖdinger流的光滑解的局部存在性 .若靶流形为具常截面曲率的紧Kähler流形 ,借助于一个守恒律 ,建立了从S¹ 进入此种Kähler流形的SchrÖdinger流的光滑解的大范围存在性 .     

高离化态氖的类H,类He离子激光光谱的研究

利用束箔技术研究由重离子加速器提供的４７ＭｅＶ能量的Ｎｅ离子，穿过厚度为３９μｇ／ｃｍ＾２，的碳箔而产生高离化态类Ｈ（ＮｅＸ）类Ｈｅ（ＮｅⅨ）离子激发谱的情况。