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Low Energy Dielectronic Recombination of Boron-like Ar^(13+) at the CSRm

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IMP & HIRFL Annual Report 2018年第1期 66-67页

作者： Huang Zhongkui Wen Weiqiang Wang Shuxing Li Shuang Wang Hanbing Nadir Khan Dou Lijun Zhu Xiaolong mao Lijun Li Jie ma Xiaoming Yin Dayu mao Ruishi Yuan Youjin Yang Jiancheng Chen Chongyang Zhu Linfan ma xinwen Institute of Modern Physics Chinese Academy of SciencesLanzhou730000China Hefei National Laboratory for Physical Sciences at Microscale Department of Modern PhysicsUniversity of Science and Technology of China230026HefeiChina Shanghai EBIT Laboratory Institute of Modern PhysicsFudan Universityand the Key Laboratory of Applied Ion Beam PhysicsChinese Ministry of EducationShanghai 200433China

Based on the successful dielectronic recombination(DR)experiments with intermediate charge state ions of Belike Ar^(14+[1]) and Ca^(16+[2]) at the CSRm,we are preparing the precision spectroscopy of DR experiments with highly charged ions and even radioactive ions at the CSRe.A test electron-ion recombination experiment of Boron-like Ar13+ions was performed with a section of the new electron beam energy detuning system,which will be installed at the ***.1 presents the measured and also the calculated DR spectra for B-like Ar^(13+) from 0 to 3 *** experimental result indicates that the new detuning system is more stable and has a higher energy resolution than the previous detuning system used at the *** paves the way for the upcoming DR experiments with highly charged heavy ions at the *** addition,the flexible atomic code(FAC)was employed to calculate the DR resonance strengths of Boron-like Ar^(13+) to compare with the experimental result.

关键词： system preparing addition

Atomic Physics——Progress of High-voltage ECR Platform Projects

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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 2005年第1期 97-97,99页

作者： ma xinwen Song Mingtao Zhu Xiaolong Liu Huiping Sun Liangting Xiao Guoqing Zhao Hongwei Wang Zhiguang Cai Xiaohong Li Wenjian Liu Zhenhao Gao Daqing ma Lizhen man Kaidi Sha Shan Fen Wentian Zhan Wenlong

Charge State and Wake-field Modification of Ions in Plasma

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IMP & HIRFL Annual Report 2018年第1期 75-77页

作者： Cheng Rui Wang Yuyu Zhou Xianming Lei Yu Chen Yanhong Zhao Yongtao He Bin Wu Dong Ying Yangjun Ren Jieru Gao Fei Hu Zhanghu ma xinwen Xiao Guoqing 不详

Plasma,called the fourth form of matter,not only plays an important role in astrophysics,but also becomes the new interest in atomic physics,material science and other *** beam–plasma interaction can be a new solution to understand the plasma *** instance the collision of ion and free electrons dominate in plasma,which can induce the higher energy loss and the change of charge state,as well as the wake-field can modify the ion beam from a continues mode to a pulsed mode with a focused/unfocused spot.

关键词： properties. instance field

激光辐照C_(60)分子中光束发散度对产物分布的影响

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光学学报 2009年第6期29卷 1577-1581页

作者：钱东斌马新文张大成祖凯玲刘惠萍汶伟强中国科学院近代物理研究所甘肃兰州730000 中国科学院研究生院北京1000049

利用焦距为300 mm和1500 mm的透镜对纳秒激光束进行聚焦,产生了在空间发散度上具有较大差别的两激光束,采用飞行时间质谱计分别测量了两光束诱导C60分子电离和碎裂时的离子产物分布随激光通量的变化特征。实验结果表明,激光束的空间发... 详细信息

利用焦距为300 mm和1500 mm的透镜对纳秒激光束进行聚焦,产生了在空间发散度上具有较大差别的两激光束,采用飞行时间质谱计分别测量了两光束诱导C60分子电离和碎裂时的离子产物分布随激光通量的变化特征。实验结果表明,激光束的空间发散度越大,轻碎片离子Cn+(n<25)的总产额、C60分子的碎裂程度以及延迟电离产额随激光通量的变化趋势就越快,延迟电离成分占总电离成分的百分比就越高。该实验结果可用多光子吸收的内能分布理论给予合理解释。

关键词：光束发散度飞行时间质谱计内能分布延迟电离

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相对论离子与氦二聚体碰撞电离的理论研究

原子核物理评论 2022年第3期39卷 391-395页

作者：王振江马新文 A.B.Voitkiv 中国科学院近代物理研究所兰州730000 中国科学院大学北京100049 杜塞尔多夫大学理论物理研究所杜塞尔多夫40225

基于对称程函近似,从理论角度研究了相对论离子与氦二聚体碰撞双电离的直接碎裂通道:由入射离子与两个原子的作用造成的双电离。从不同的近似角度出发,建立了两个理论模型,第一个模型将氦二聚体的两个原子看做一个整体,而另外一个模型... 详细信息

基于对称程函近似,从理论角度研究了相对论离子与氦二聚体碰撞双电离的直接碎裂通道:由入射离子与两个原子的作用造成的双电离。从不同的近似角度出发,建立了两个理论模型,第一个模型将氦二聚体的两个原子看做一个整体,而另外一个模型完全忽略了两个氦原子之间的相互作用。模型的数值计算结果表明,总截面与氦二聚体的空间取向有很强的依赖关系,当氦二聚体与入射离子束流平行时,总截面达到最大值,在垂直时为最小值。进一步研究发现,模型一的结果在氦二聚体核间距较小时更为合理,核间距较大时,模型二更为精确。

关键词：氦二聚体相对论离子双电离对称程函近似

4 - 8 Electron Capture in Bea＋-H Collisions

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IMP & HIRFL Annual Report 2013年第1期 184-184页

作者： Liu Chunhua ma xinwen Wang Jianguo

Sintillation Detector for Low Energy Projectile Detection in Radiative Recombination and Dielectron Recombination Experiments

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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 2009年第1期 224-224页

作者： Meng Lingjie ma xinwen Liu Huiping

4-1 A Moveable Laser-induced Breakdown Spectroscopy Instrument for Application

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IMP & HIRFL Annual Report 2014年第1期 179-179页

作者： Zhang Dacheng ma xinwen Zhao Dongmei 不详

As a developing analytical technique, laser-induced breakdown spectroscopy (LIBS) has demonstrated its capabilitiesfor on-line elemental analysis of any material phase without sample preparation or some easy samplepreparation. Thus, it has attracted substantial attention nowadays for a wide range of applications. Some LIBSinstruments have also appeared in the market over the past few years. However, most prototypes were proposedprimarily by research teams mainly in laboratories in connection to potential field applications[1].

关键词： Moveable Breakdown Spectroscopy

4-12 Collision Induced Dissociation in H++He Collisions

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IMP & HIRFL Annual Report 2014年第1期 190-190页

作者： Liu Chunhua ma xinwen Wang Jianguo 不详 Institute of Applied Physics and Computational mathematics Beijing 100088 China

The collision induced dissociation (CID) of H+2 ion colliding with He target has been measured by Williams andDunbar[1] and Suzuki et al.[2] in the keV energy region. In Ref. [1], the CID cross sections decrease monotonouslywith decreasing energy. But the energy dependency of the CID results in Ref. [2] is different with that in Ref. [1].At energies below 1 keV, no experimental results are available for integral cross sections. On the theoretical side,Furlan and Russek[3] have investigated the electron capture (EC), CID and excitation processes in the few keVenergy region. Their calculations are performed by the straight-line trajectory method based on the ab initiomolecular structure. A three-state approximation is employed in their calculations. Their CID cross sections areseveral times smaller than the experimental results. We present the quantum-mechanical molecular orbital closecoupling (QMOCC) calculations[4] for the CID process of the H+2 + He collision.

关键词： Collision Induced Dissociation