检索结果-南通市图书馆

近代物理研究所和兰州重离子加速器实验室年报：英文版 2004年第1期 33-33,35页

作者： huang wenxue wang yue xu hushan sun zhiyu xiao guoqing zhan wenlong

RFQ Cooler and Buncher RFQIL in SHE Spectrometer

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

IMP & HIRFL Annual Report 2004年 56-56页

作者： huang wenxue, wang yue, xu hushan, sun zhiyu, xiao guoqing and zhan wenlong

A new spectrometer is being designed and constructed in our institute to study super-heavy elements (SHE) with long half-lives. Its greatest advantage is that the spectrometer can identify the nuclides directly by their charge (Z) and mass (A), thus eliminating the uncertainty of the assignments of the new nuclides which are currently used around the world. For direct identifications by dipole magnets and lasers, the recoils from the

关键词：

RFQ Cooler and Buncher

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

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 27-27页

作者： huang wenxue , wang yue, xu hushan, xiao guoqing and zhan wenlong

The study of nuclides far from the valley of stability in recent years, with various spectroscopic methods, sets new demands for the handling of the ion beams. A relative old technique that was first proved to be feasible by Paul and his coworkers has been revived by using electromagnetic fields to prevent the low energy ions from losing in the gas. In the past few years, emittance improvement of low-energy radioactive ion beams has gained a lot of interest and several devices for an emittance improver and buncher have been constructed.

关键词： RFQ 稳定性核素离子束电磁场低能放射性

β-decay study of neutron-rich nucleus ^(34)Al

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2017年第4期60卷 69-73页

作者： 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 School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University Sino-French Institute of Nuclear Engineering and Technology Sun Yat-Sen University Institute of Modern Physics Chinese Academy of Sciences

The ＂island of inversion＂ has been known for over a quar- ter century, since Warburton et al. [1] proposed that nuclei with intruder ground states would constitute a 3x3 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 strong nucleon-nucleon tensor interaction [2-5], allows the intrusion of neutron orbits from the pf shell into the sd shell and results in the inversion of the 2p-2h intruder and 0p-0h normal con- figurations of the nuclear ground states in this region. Mean- while, the original border of the ＂island of inversion＂ has been extended greatly [6-14].

关键词： Al decay study of neutron-rich nucleus

The properties of halo structure for ^(17)B

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2008年第7期51卷 781-787页

作者： HU ZhengGuo1, wang Meng1, xu hushan1, sun zhiyu1, wang JianSong1, xiao guoqing1, zhan wenlong1, xiao ZhiGang1, MAO RuiShi1,2, LI Chen1, zhanG xueYing1,2, zhanG HongBin1, ZHAO TieCheng1, xu ZhiGuo1, wang yue1,2, CHEN RuoFu1,2, huang TianHeng1,2, FU Fen1,2, GAO Qi1,2, HAN JianLong1,2, zhanG xueHeng1,2, ZHENG Chuan1,2, YU YuHong1,2 & GUO ZhongYan1 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2 Graduate University of the Chinese Academy of Sciences, Beijing 100049, China Institute of Modern Physics Chinese Academy of Sciences Lanzhou China Graduate University of the Chinese Academy of Sciences Beijing China

The total reaction cross section (1724±93 mb) of 17B at the energy of 43.7 A MeV on C target has been measured by using the transmission method at the Radioactive Ion Beam Line in Lanzhou (RIBLL). Assuming 17B consists of a core 15B plus two halo neutrons,the total cross section of 17B on C target was calculated with the zero-range Glauber model,where double Gaussian density distributions and Gaussian plus HO density distributions were used. It can fit the experimental data very well. The characteristic of halo structure for 17B was found with a large diffusion of the neutrons density distribution.

关键词： total cross section density distribution Glauber model the characteristic of halo structure

Neutron Wall at RIBLL Ⅱ

在线全文

学校读者我要写书评

暂无评论

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 115-115页

作者： xu Huagen, xu hushan, Li Wenfei, zhan wenlong , xiao guoqing , Guo Zhongyan sun zhiyu, Li Chen, Chen Ruofu, Ma yue, zhang xueying and Jia Fei

With the construction of the new Radioactive Ion Beam Line in Lanzhou (RIBLL Ⅱ) which connecting the CSRm and the CSRe, an experimental *** Time-of-Flight (ToF) technique was recognized as one of the best ways for neutron detection and it, is employed by the neutrons wall. Considering the high neutron multiplicity, the detector shouldal so have the ability to resolve the multiple hits. Moreover, a high detection efficiency for the neutrons with energies ranging from 100MeV to 1 GeV is also required besides the high granularity. In this case, the sampling hadronic calorimeter type of detector has been selected. In order to estimate the performance of the detector

关键词：中子墙放射性离子电波线撞击能量探测器

Electron-ion collider in China

在线全文

学校读者我要写书评

暂无评论

Frontiers of physics 2021年第6期16卷 1-78页

作者： Daniele PAnderle Valerio Bertone xu Cao Lei Chang Ningbo Chang Gu Chen xurong Chen Zhuojun Chen Zhufang Cui Lingyun Dai Weitian Deng Minghui Ding xu Feng Chang Gong Longcheng Gui Feng-Kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia huang Yin huang KrešImir KumeričKi LPKaptari Demin Li Hengne Li Minxiang Li xueqian Li Yutie Liang Zuotang Liang Chen Liu Chuan Liu Guoming Liu Jie Liu Liuming Liu Xiang Liu Tianbo Liu xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma Lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao Song Hao sun PawełSznajder Enke wang Fan wang Qian wang Rong wang Ruiru wang Taofeng wang Wei wang xiaoyu wang xiaoyun wang Jiajun Wu Xinggang Wu Lei Xia Bowen xiao guoqing xiao Ju-Jun Xie Yaping Xie Hongxi Xing hushan xu Nu xu Shusheng xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan wenlong zhan Jianhui zhang Jinlong zhang Pengming zhang Yifei zhang Chao-Hsi Chang Zhenyu zhang Hongwei Zhao Kuang-Ta Chao Qiang Zhao Yuxiang Zhao Zhengguo Zhao Liang Zheng Jian Zhou Xiang Zhou xiaorong Zhou Bingsong Zou Liping Zou Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum MatterSouth China Normal UniversityGuangzhou 510006China IRFU CEAUniversitéParis-SaclayF-91191 Gif-sur-YvetteFrance Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Nankai University Tianjin 300071China Xinyang Normal University Xinyang 464000China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Hunan University Changsha 410082China Nanjing University Nanjing 210093China Huazhong University of Science and Technology Wuhan 430074China European Centre for Theoretical Studies in Nuclear Physics and Related Areas(ECT*)and Fondazione Bruno Kessler Villa TambosiStrada delle Tabarelle 286I-38123 Villazzano(TN)Italy School of Physics Peking UniversityBeijing 100871China Hunan Normal University Changsha 410081China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Nanjing Normal University Nanjing 210023China Department of Physics College of SciencesNortheastern UniversityShenyang 110819China Southwest Jiaotong University Chengdu 610000China Department of Physics Faculty of ScienceUniversity of ZagrebBijenička c.3210000 ZagrebCroatia Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear ResearchDubna 141980Russia School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Lanzhou University Lanzhou 730000China Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityQingdao 266237China Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China School of Physics Southeast UniversityNanjing 211189China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Depa

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as *** a future high energy nuclear physics project,an Electron-ion collider in China(EicC)has been *** will be constructed based on an upgraded heavy-ion accelerator,High Intensity heavy-ion Accelerator Facility(HIAF)which is currently under construction,together with a new electron *** proposed collider will provide highly polarized electrons(with a po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 15 to 20 GeV and the luminosity of(2–3)×1033 cm^(−2)·s^(−1).Polarized deuterons and Helium-3,as well as unpolarized ion beams from Carbon to Uranium,will be also available at the *** main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region,including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states,especially those with heavy flavor quark *** addition,issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the *** order to achieve the above-mentioned physics goals,a hermetical detector system will be constructed with cutting-edge *** document is the result of collective contributions and valuable inputs from experts across the *** EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United *** success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China.

关键词： electron ion collider nucleon structure nucleon mass exotic hadronic states quantum chromodynamics 3D-tomography helicity transverse momentum dependent parton distribution generalized parton distribution energy recovery linac polarization spin rotator

Simulation System of Internal-target Detector at HIRFL-CSRm

在线全文

学校读者我要写书评

暂无评论

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 113-113页

作者： Li Wenfei, xu hushan, sun zhiyu, zhan wenlong, Duan Limin, Li Songlinxu Huagen, Chen Ruofu, zhang xueying, Ma yue, Jia Fei,Li jiaxing, xiao guoqing and Guo Zhongyan

HIRFL-CSRm will accelerate the proton beam up to 2.8 GeV. The interesting physics, such as the hadron spectrum, di-baryon state and the rare decay mode of the neutral mesons can be investigated with such beams. The corresponding detector as introduced in Ref.[1] is an internal-target 4π detector which is composed of the forward detector (including position detector and hadron calorimeter) to detect particles emitted at forward angles, and the center detector (including tracker, plastic scintillator barrel and EM calorimeter) to measure momentum and energy loss of the charged particle, and the energy and emission angle of the high energy photon at central and backward angles. To design such a complex detector, the Monte-Carlo (MC) simulation is definitely necessary.

关键词： HIRFL CSR MC EM

Shell Evolution Study for New Magic Number N=32 via Isochronous Mass Spectrometry

在线全文

学校读者我要写书评

暂无评论

原子核物理评论 2016年第2期33卷 156-159页

作者：徐星王猛张玉虎帅鹏徐瑚珊涂小林周小红陈瑞九陈相成付超义葛壮黄文嘉蓝乙华李宏福刘俊豪孙铭泽邢元明颜鑫亮曾奇张鹏肖国青詹文龙 Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science Institute of Modern Physics Chinese Academy of Sciences Lanzhou 730000 China University of Chinese Academy of Sciences Beijing 100049 China Research Center for Hadron Physics National Laboratory of Heavy Ion Accelerator Facility in Lanzhou and University of Science and Technology of China Hefei 230026 China

Recent results and progress of mass measurements of neutron-rich nuclei utilizing Isochronous Mass Spectrometry(IMS) based on the HIRFL-CSR complex at Lanzhou are reported. The nuclei of interest were produced through projectile fragmentation of primary86 Kr ions at a realistic energy of460.65 Me V/u. After in-flight separation by the fragment separator RIBLL2, the fragments were injected and stored in the experimental storage ring CSRe, and their masses were determined from measurements of their revolution times. The re-determined masses were compared and evaluated with other mass measurements, and the impact of these evaluated masses on the shell evolution study is discussed.

关键词： storage ring isochronous mass spectrometry nuclear mass shell evolution

Mass Measurement of A --70 Nuclides near Proton Dripline at CSRe

在线全文

学校读者我要写书评

暂无评论

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 49-49页

作者： Tu xiaolin xu hushan Yuan Youjin wang Meng sun zhiyu Xia Jiawen Zang Yongdong Mao Ruishi Hu Zhengguo Mei Bo Shuai Peng Tang Shuwen Geng Peng Liu Yong Zhao Tiecheng zhang xueying Yang Jiancheng Mao Lijun zhang Yuhu Zhou xiaohong huang wenxue xiao guoqing Zhao Hongwei zhan wenlong