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| 1 | 2 - 30 Progress in Analyzing RIBLL1 17F+p Experimental Data显示文摘 | He Jianjun Hu Jun Xu Shiwei Chen Zhiqiang Zhang Xueying Wang Jiansong Yu Xiangqing Li Long Zhang Liyong Yang Yanyun Ma Peng Wang Hongwei Tian Wendong Zhang Xueheng Su Jun Li Ertao Hu Zhengguo Guo Zhongyan Xu Xing Yuan Xiaohua Lu Wan Lei Xiangguo Yu Yuhong Tang Shuwen Ye Ruiping Chen Jinda Jin Shilun Du Chengming Wang Shitao Ma Junbing Liu Longxiang Bai Zhen Sun Zhiyu Li Xiangqing Zhang Yuhu Zhou Xiaohong Xu Hushan | 2010 | IMP & HIRFL Annual Report2010，，1： | 0 |
| 2 | 2-22 Elastic Scattering Studies of Light Proton-rich显示文摘The elastic scattering is an important probe to study the properties of a nucleus. An accurate measurement ofthe elastic scattering differential cross section is very important to determine the optical potential parameters andthe so-called one quarter angle (q1=4). Also, the optical potential parameters of stable nuclei and unstable nucleiare found to be different. 8B, the binding energy of the last proton is only 0.137 MeV, is a well-known protonhalonucleus even there are still some arguments. Many investigations have been done for 8B by measuring thetotal reaction cross sections, breakup cross section and inelastic scattering differential cross section. However, theexperimental data of elastic scattering of 8B and other light proton-rich nuclei on heavy target are few. Therefore, aseries of experiments have been carried out for such nuclei at the Radioactive Ion Beam Line in Lanzhou (RIBLL). | Wang Jiansong Yang Yanyun Wang Qi Pang Danyang Ma Junbing Huang Meirong Ma Peng Jin Shilun Han Jianlong Bai Zhen Ma Weihu Zhou Yuanjie Chen Jie Jin Lei Chen Jiangbo Hu Qiang R. Wada S. Mukherjee | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 3 | 2-24 Breakup Reaction of 9Li显示文摘The studies of nuclear cluster structure play an important role in understanding of nuclear structure properties.There are lots of works have been done[1?6] to study the nuclear cluster structure properties.. It is a very importantmethod to investigate the nuclear cluster structure through analyzing the breakup reaction of the interesting nucleus.The experimental study of the cluster structure of 9Li through analyzing its breakup fragments was performed atRadioactive Ions Beam Line in Lanzhou (RIBLL). The light charged particles were measured by a ΔE-E telescopearray. Also the energy distribution of the fragments have been measured in this experiment. | Ma Weihu Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Jin Shilun Bai Zhen Huang Meirong Wang Qi Zhou Yuanjie Chen Jie | 2014 | IMP & HIRFL Annual Report2014，，1： | 0 |
| 4 | 2018年重离子核反应组研究进展显示文摘Heavy Ion Reaction Group is in charge of the operation and maintenance of the 1st Radioactive Ion Beam Line in Lanzhou(RIBLL1).Their research works are focused on the direct reactions induced by radioactive ion beams,nuclear reaction dynamics at Fermi energy and some international collaborations.The progress achieved in 2018 are as the following. | Wang Jiansong Yang Yanyun Ma Peng Ma Junbing Liu Xingquan Bai Zhen Hu Qiang Jin Shilun Yu Gongming DPatel Duan Fangfang | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 5 | 用于放射性束物理实验的探测硅阵列的研制显示文摘With the development of radioactive beam facilities,several exciting results were provided concerning the understanding of fundamental nuclear physics.However,typical-beam intensities are always low and the production is often in very small quantities,so,new generation detectors need to be developed with large solid angle and angular coverage,which can identify particle effectively as well as possesses high energy resolution,high spatial resolution and high geometric efficiency.The new detector based on Double Side Silicon Strip Detector(DSSD)is foreseen for the study of the reaction production in the experiment of direct nuclear reaction above the Coulomb barrier using RIBLL[1,2]at the HIRFL[3,4].However,the disadvantage of the RIBs is that it has a broad distribution in coordinate spaces.Therefore,new detector system with high resolution and a large solid angle was developed successfully for performing nuclear reaction experiments using RIBs.The geometric efficiency of the new detector array with 5 large area DSSD telescopes increases up to 70%. | Duan Fangfang Yang Yanyun Gao Zhihao Liu Xingquan Ma Peng Wang Jiansong Bai Zhen Ma Junbing Hu Qiang Jin Shilun Jin Shuya Yu Gongming | 2017 | IMP & HIRFL Annual Report2017，，1： | 0 |
| 6 | β-decay study of neutron-rich nucleus ^(34)Al显示文摘The'island of inversion'has been known for over a quarter century,since Warburton et al.[1]proposed that nuclei with intruder ground states would constitute a 3×3 square with Z=10-12,N=20-22 in 1990.Uncovering the underlying inversion mechanism and exploring the scope of the island have attracted significant theoretical and experimental efforts in the following years.Now it is well known that the reduction of N=20 shell gap,which is likely caused by the | Rui Han XiangQing Li WeiGuang Jiang ZhiHuan Li Hui Hua ShuangQuan Zhang CenXi Yuan DongXing Jiang YanLin Ye Jing Li ZongHao Li FuRong Xu QiBo Chen Jie Meng JianSong Wang Chuan Xu YeLei Sun ChunGuang Wang HongYi Wu ChenYang Niu ChenGuang Li Chao He Wei Jiang PengJie Li HongLiang Zang Jun Feng SiDong Chen Qiang Liu XiaoChi Chen HuShan Xu ZhengGuo Hu YanYun Yang Peng Ma JunBing Ma ShiLun Jin Zhen Bai MeiRong Huang Yuan Jie Zhou WeiHu Ma Yong Li XiaoHong Zhou YuHu Zhang GuoQing Xiao WenLong Zhan | 2017 | Science China(Physics,Mechanics & Astronomy)2017，60，4： | 0 |
| 7 | 2 - 3 Dynamics Aspect of Subbarrier Fusion Reaction in Light Heavy Ion Systems显示文摘 | Huang Meirong Zhou Feng Wada Roy Liu Xingquan Lin Weiping Zhao Minghui Wang Jiansong Chen Zhiqiang Ma Chunwang Yang Yanyun Wang Qi VaJunbing Han Jianlong Ma Peng Jin Shilun Bai Zhen Hu Qiang Jin Lei Chen Jiangbo Li Yong | 2012 | IMP & HIRFL Annual Report2012，，1： | 0 |
| 8 | 2-24 Research Progress of Heavy Ion Reaction Group显示文摘In 2016,the environment of the power supply of RIBLL1 is improved by building a closed space with air condition.It will be good for the magnetic stability which is directly affected by the stability of the power supply.There are 9 experiments,more than 1 165.5 h beam-time,carried out at the RIBLL1.The users are from Peking University,China Institute of Atomic Energy,Shanghai Institute of Applied Physics,National Space Science Center,Institute of High Energy Physics and Institute of Modern Physics. | Wang Jiansong Yang Yanyun Ma Peng Jin Shilun Ma Junbing Liu Xingquan Bai Zhen Ma Weihu Wang Qi Hu Qiang Yu Gongming D.Patel Gao Zhihao Duan Fangfang Zhang Xing Jiao Lei Yu Yuechao | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 9 | 2-26 Experimental Measurement of 12N,13O on natPb Elastic Scattering Above the Coulomb Barriers显示文摘Elastic scattering is an ideal tool to study the information of the exotic structure and reaction mechanism of the weakly bound nuclei.A great deal of elastic scattering experiments have been performed for neutron halo nuclei,such as 6He,11Li and 11Be[1].However,elastic scattering data for proton halo nuclei above the Coulomb barrier are still scarce.13O and 12N,with small separation energies,are good candidates of proton halo nuclei.The 13O and 12N induced elastic scattering is experimentally investigated. | Liu Xingquan Yang Yanyun Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 10 | 2-27 Experimental Measurement of 7Be,8B and 9C on natPb Elastic Scattering Above the Coulomb Barriers显示文摘The experiment was performed at the National Laboratory of Heavy Ion Research of the Institute of Modern Physics,Lanzhou,China.The secondary beams of radioactive isotopes were produced by the fragmentation of the 12C6+primary on a 9Be target with a thickness of 2 652 m[1;2].The secondary beams,7Be,8B and 9C beams were delivered by the Radioactive Ion Beam Line in Lanzhou(RIBLL)[3,4]and impinged on a natPb target at RIBLL Terminal.The energies of the secondary beams,at the physical target,were about three times the Coulomb barriers,130 MeV for 7Be,178 MeV for 8B and 227 MeV for 9C,respectively. | Yang Yanyun Liu Xingquan Wang Jiansong Duan Fangfang Ma Peng Ma Junbing Jin Shilun Bai Zhen Gao Zhihao Hu Qiang Ma Weihu Yu Yuechao Yu Gongming | 2016 | IMP & HIRFL Annual Report2016，，1： | 0 |
| 11 | 2-3 Lifetime Measurement of the First Excited State in 37S显示文摘We have found that the excited energy from the ground state with 1f7=2 configuration to the first excited state with 2p3=2 configuration in 37S is obviously lower compared with that in nearby N=21 isotones 35Si, 39Ar and 41Ca (see Fig. 1, The insert indicates the relevant single-particle orbits of proton and neutron). This interesting phenomenon may result from the collapse of N=28 closure, which gives the sufficient valence space for collective deformation which can been revealed from the B(E2) value. Therefore, to obtain the B(E2), we perform the experiments for measuring the lifetime of the first excited state in 37S. | Wang Kailong Liu Minliang Wang Jianguo Qiang Yunhua Gao Bingshui Zheng Yong Lv Bingfeng Zhang Zhiyuan Zhang Wenqiang Zhou Xiaohong Wang Jiansong Yang Yanyun Bai Zhen Ma Peng Jin Shilun Ma Junbing Duan Fangfang Zhang Xing Jiao Lei | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 12 | 2-15 Research Progress of Heavy Ion Reaction Group显示文摘Alignment of RIBLL1 is adjusted and the control system of the power supply of the magnets of RIBLL1 is upgraded in 2015. 8 experiments, more than 1 000 h beams, have been carried out at the Radioactive Ion Beam Line in Lanzhou (RIBLL1) in 2015. Many research topics are included, such as the mechanism study of -delayed di-proton decay and the correlation measurement of emitted two protons for 22Si and 23Si, elastic scattering of 17F, the study of molecular state of 20O, Coulomb excitation of 37S and decay of 37P, study of the effects of dynamic polarization in low energy reaction induced by the proton-rich exotic nuclei, decay of proton-rich fp shell nuclei with mass around 50. | Wang Jiansong Yang Yanyun Ma Peng Jin Shilun Ma Junbing Liu Xingquan Bai Zhen Ma Weihu Wang Qi Hu Qiang | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 13 | 2-17 Longitudinal Momentum Distributions of 7Be from the 8B Breakup in Different Mechanisms are Present显示文摘With the development of Radioactive Nuclear Beam(RNB) facility, halo structure are discovered in nucleus. It weakly bound by a core and one or two valence nucleon. Some new characters are presented in halo nucleus to challenge the traditional nuclear theory, so investigating the halo nucleus is the frontier nuclear physics. | Jin Shilun Wang Jiansong Yang Yanyun Ma Peng Ma Xuebing | 2015 | IMP & HIRFL Annual Report2015，，1： | 0 |
| 14 | Investigation of Proton Resonant Properties in laNe via 17F+p and Its Astrophysical Implications for 14O(α,p)17F Stellar Reaction显示文摘 | Hu Jun He Jianjun Xu Shiwei Chen Zhiqiang Zhang Xueying Wang Jiansong Yu Xiangqing Li Long Zhang Liyong Yang Yanyun Ma Peng Wang Hongwei Tian Wendong Yuan Xiaohua Lu Wan Zhang Xueheng SuJun Li Ertao Hu Zhengguo Guo Zhongya n Xu Xing Lei Xiangguo Yu Yuhong Tang Shuwen Ye Ruiping Chen Jinda Jin Shilun Du Chengming Wang Shitao Ma Junbing Liu Longxiang Bai Zhen Sun Zhiyu Li Xiangqing Zhang Yuhu Zhou Xiaohong Xu Hushan | 2009 | 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，，1： | 0 |
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