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      • Jianye Liu
        Vol. 12, Issue 8-09, (1989)
        摘要：The reaction mechanism between heavy-ions at medium energy possesses the transition property between the dissipative heavy-ion collisions at low energy and the process of participant and spectator of heavy ion collisions at high energy according to the theoretical calculations and the experimental data. That is to say that it incorporates the effects of a mean field The Pauli blocking and the nucleon-nucleon collisions.  
        关键词：Dissipative heavy-ion collisions;The process of participant and spectator;collision mechanism;The effect of a mean field;Pauli blocking;Two body collision   
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        发布时间：2022-08-16
      • Huanqing Jiang
        Vol. 12, Issue 8-09, (1989)
        摘要：The new developments on pion-nucleus physics are reviewed and the future direction is pointed out.  
        关键词：Pion-nucleus physics   
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        发布时间：2022-08-16
      • Guanglie Li,Jianping Shen,Zhijun Cao
        Vol. 12, Issue 8-09, (1989)
        摘要：The recent progress in experiments and theoretical descriptions of the EMC effect is reviewed in this paper.  
        关键词：Deep inelastic scattering;Nuclear structure function;The EMC effect   
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        发布时间：2022-08-16
      • Weiqin Zhao
        Vol. 12, Issue 8-09, (1989)
        摘要：A review of the new results of relativistic heavy-ion collisions at CERN and Brookhaven since 1987 is given. The phenomenological analysis of the experimental results is summarized. Special attention is paid to the geometric property of nuclear collisions and the experimental method to choose central collisions.  
        关键词：Heavy ion collision;Phenomenological analysis   
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        发布时间：2022-08-16
      • Xijun Qiu
        Vol. 12, Issue 8-09, (1989)
        摘要：Some developments on the relativistic nuclear many-body theory in recent years. have been briefly reviewed. The emphasis is laid on the developments of the relativistic self-consistent mean field theory in the phenomenology, the quantum corrections and some problems for the relativistic nuclear field theory. Some theoretical approaches to the relativistic nuclear many-body problem, which take into account the substructure of the nucleon, have been also briefly discussed.  
        关键词：Relativistic nuclear many-body theory;Mean field theory;Quantum corrections;Substructure of nucleon   
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        发布时间：2022-08-16
      • Tansheng Cheng
        Vol. 12, Issue 8-09, (1989)
        摘要：Recent experimental developments in scattering of high energy electron on nuclei and the informations about nuclear structure which can be learnt from these experimental results are reviewed in this paper.  
        关键词：Scattering of high energy eleetron;Nuclear structure   
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        发布时间：2022-08-16
      • Lingxiao Ge
        Vol. 12, Issue 8-09, (1989)
        摘要：The mechanism, main phenomena and theoretical models of heavy ion reaction at the intermediate energies have been discussed in this paper. The BUU theory and its applications are emphatically introduced.  
        关键词：Heavy ion collision;LMT;Fragmentation;Reaction mechanism   
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        发布时间：2022-08-16
      • 金全 陈
        Vol. 12, Issue 8-09, (1989)
        摘要：本文讨论了Sp6费米子动力学对称模型(FDSM)的各种泡利效应, 这些效应的计及是FDSM和相互作用玻色子模型的基本区别.  
        关键词：费米子动力学对T称模型;相互作用玻色子模型;泡利效应   
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        发布时间：2022-08-16
      • Yukun Ho
        Vol. 12, Issue 8-09, (1989)
        摘要：It is expected that the unified model of (n, γ) reactions based upon the concept of multistep process can be perfected in recent years. The progress made recently in this area is reviewed in this paper. The mechanisms of (n, γ) reactions are classified according to the hierarchy of quasiparticle numbers in the excited configurations. For each process, the following questions are discussed: physical significance, schematic representation, calculational formula, test of characteristics that distinguish the mechanism, comparison of theory with data, as well as remaining problems.The present work was supported by the National Science Fundation (China), and International Atomic Energy Agency.  
        关键词：Radiative neutron capture reaction;Reaction mechanisms;Unified model   
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        发布时间：2022-08-16
      • Xiaoqian Zhou
        Vol. 12, Issue 8-09, (1989)
        摘要：The extenden Rowe's Sp(6) nuclear collective model is embedded into a larger Lie algebra in two ways via the Dynkin-Gruber embedding method. One is based upon fermions and the other upon bosons. Each of the two larger algebra possesses a rich family of reduction chains and corresponds the Fermion Dynamical Symmetry Model and the InteractingBoson Model respectively.  
        关键词：Algebraic nuclear model;Rowe's theory;Reduction chains   
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        发布时间：2022-08-16
      • Yongshou Chen
        Vol. 12, Issue 8-09, (1989)
        摘要：The formation of the superdeformed nuclear states is discussed, and the equalitative criteria for the most probable superdeformed nuclei are suggested. The calculated results of superdeformed states in the regions A=130 and A=150 coincide with the criteria and indicate the wide existence of the superdeformed nuclei.  
        关键词：Superdeformed nuclei;Yrast state   
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        发布时间：2022-08-16
      • Hongqiu Song,Yanhuang Cai
        Vol. 12, Issue 8-09, (1989)
        摘要：Recent observations of giant nultipole resonances in hot and high-spin nuclei by means of high energy heavy ion collisions and various theories developed to explain these experimental results are presented.  
        关键词：Hot nuclei;Giant resonances   
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        发布时间：2022-08-16
      • Yongtai Zhu,Xiaoqing Hu,Wenqing Shen,Songlin Li,Yuanxiang Xie,Wenlong Zhan,Zhen Zhang,Xiang Zhu
        Vol. 12, Issue 8-09, (1989)
        摘要：Projectile breakup in heavy ion reactions at the low side of the intermediate energy domain and incomplete deep inelastic collision, a reaction mechanism of dissipative process between target nucleus and the main part of the projectile after projectile breakup, are discussed in this paper. Some new experimental data on this subject in the energy region of 10—20MeV/u are given. The experimental results of the single and coincident measurements are interpreted in the framework of corresponding reaction mechanisms.  
        关键词：Breakup;Momentum distribution;Incomplete deep inelastic collision   
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        发布时间：2022-08-16
      • Jinqing Yang,Dazhen Jiang,Yingji Zhang,Jie Zhang,Jianhua He,Xiaowu Cheng
        Vol. 12, Issue 8-09, (1989)
        摘要：Angular distributions of 58, 60, 62, 64Ni(p, t) ground state transitions were measured and compared with DWBA predictions. Relative enhancement factors for four Ni isotopes were given. Comparison between the relative enhancement factors and the predictions of the SU(5) limiting symmetries of IBA model showed that the experimental data were consistent with the average values of Ωv=11 and Ωv=15 transition intensities.  
        关键词：Ni isotopes;enriched targets;Two neutron;transfer reactions   
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        发布时间：2022-08-16
      • Guangxi Dai
        Vol. 12, Issue 8-09, (1989)
        摘要：The central collisions of heavy ions for energies up to Fermi energy domain have been reviewed in summary. The limitation of linear momentum transfer (LMT) limits the temperature of the hot nucleus formed in an asymmetry system. Because of the comperature of evaporation, the sequential binary fission of the hot nucleus may not be possible.In coincidence with hard gamma rays, the events of central collisions could be selected. The hotter nuclei could be us:d for the research of up-limit of nuclear temperature. For the 28Si+ 197Au system the standard deviation of out-of-the reaction plane for one fission fragment depends linearly on the excitation energy per nucleon up to 15MeV/A. It is the same for other systems. The linear dependence could be used for estimation of excitation energy by the standard deviation.  
        关键词：Central collision;LMT (linear momentum transfer);Hot nucleus;Quasi-compound nucleus;Incomplete fusion-fission;Sequential binary decay   
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        发布时间：2022-08-16
      • Guanghou Wang
        Vol. 12, Issue 8-09, (1989)
        摘要：In this paper we have discussed the stable structures and magic numbers of ion clus ters for inert elements, alkali metal and alkali halides, indicating that small atomic aggregates have some structural characters more or less similar to those of nucleons in nuclei.  
        关键词：Ion clusters;Stable structure;magic number   
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        发布时间：2022-08-16
      • Chunxiang Yang,Peikun Weng
        Vol. 12, Issue 8-09, (1989)
        摘要：The recent development of the nuclear structure study of the rapid rotating nuclei has been reviewed in this paper. It includes some frontier topics in this field, such as the phase transitions from superconductivity states to normal states, total alignment and band terminations, shape transformations and superdeformations. Present status and future trends are also indicated. Finally, some studies of high spin states on the HI-13 tandem accelerator of IAE are introduced.  
        关键词：High spin state;Phase transition;Total alignment;Band termination;Superdeformation   
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        发布时间：2022-08-16
      • Shuwei Xu
        Vol. 12, Issue 8-09, (1989)
        摘要：Main progress in searching exotic nuclei and decay modes over the last decade has been summarized. It is indicated that the future development in this field is very prospective. In addition, the present situation of IMP for studying nuclei far from β-stability has been reported briefly.  
        关键词：Exotic nuclei;Exotic decay modes   
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        发布时间：2022-08-16
      • Rongchuan Liu,Minkang Teng,Guanghou Wang,Dexun Shen,Yuanfu Xia
        Vol. 12, Issue 8-09, (1989)
        摘要：Structure and superconductivity of YBa2(Cu1-XFeX)3O7, and The influence of Fe-substitution on the high TC superconductivity were investigated by Mössbauer spectroscopy and X-ray diffraction. Abnormal behaviors of positron annihilation in the ceramic superconductor Y-Ba-Cu-O in the transition temperature region were found and The radiation effects of electrons and protons on this ceramic superconductor were studied.  
        关键词：High TC superconductor;Mossbauer spectroscopy;Positron annihilation;Radiation effect   
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        发布时间：2022-08-16
      • Shilun Guo
        Vol. 12, Issue 8-09, (1989)
        摘要：This paper describes the new achievements of solid state nuclear track detectors in and outside China in recent years, especially in 1987 and 1988, which include lepton tracks in mica, synthesis of SR-86, new level of bubble detector, anomalous phenomena in relativistic heavy ion reactions, new developments of fission track dating, radon measurement and nuclear track microfilters.  
        关键词：Solid state nuclear track detectors;Lepton track in mica;SR-86 track detector;Anomalous phenomena in relativistic heavy ion reaction   
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        发布时间：2022-08-16
      • Yiming Yan
        Vol. 12, Issue 8-09, (1989)
        摘要：The advance of neutron physics are reviewed from the viewpoints of fundamental characteristics of neutron and conservation laws and interactions of neutrons with nuclei. The newest experimental results of weak interaction constants defined in neutron decay and neutron electrical dipole moment are given. The mechanism of P violation and possible T violation in the interaction of slow neutron with nuclei is discussed. The progress in researches on Fermi energy anomaly in fast neutron potential and on high excited states induced by slow neutron (n, 2γ) and (n, γ2) reactions, particulary the compound state to compound state transitions, are introduced.  
        关键词：Neutron physics;Fundamental characterictics of neutron;Interaction of neutron with nuclei   
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        发布时间：2022-08-16
      • Shengkang Liu
        Vol. 12, Issue 8-09, (1989)
        摘要：In this paper, the progress of neutron gauges in China is reported. Four types of neutron gauge have been developed. They are insertion, surface, transmission and scattering types.  
        关键词：Neutron gauge;Insertion type;Surface type;Transmission type;Scattering type   
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        发布时间：2022-08-16
      • Zhenxia Wang
        Vol. 12, Issue 8-09, (1989)
        摘要：Major developments both in theory and in experiments on ion sputtering have been summarized with the emphasis on preferential sputtering of alloy arising from mass differences, surface binding energy differences and bombardment-induced Gibbsian segregation. The ion sputtering of the first wall in Tokamaks, heavy ion sputtering of biomolecular materials and cluster sputtering on solid surfaces are discussed briefly. In addition, it is indicated that cluster impact processes are of some practical interest because they have the potential of depositing large amounts of translational energy in very thin surface layers with very large sputtering yeild. Some possible applications of cluster sputtering include altering surface structures and developing techniques for SIMS and microbeam analysis.  
        关键词：Collision cascade;Preferential sputtering;Cluster ion   
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        发布时间：2022-08-16
      • Tongling Su
        Vol. 12, Issue 8-09, (1989)
        摘要：This paper gives a brief review on the development of intense 14 MeV neutron generators and their applications in fusion technology and radiotherapy. A 3×1012n/s neutron generator built recently in Lanzhou University is introduced.  
        关键词：Neutron generator;Fusion neutronics;Neutron radiation damage;Fast neutron radiotherapy   
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        发布时间：2022-08-16
      • Shi Li,Guangyong Qin
        Vol. 12, Issue 8-09, (1989)
        摘要：Recent developments of the application of Mössbauer spectroscopy in archaeology are reviewed. The trend of the application is presented.  
        关键词：Mössbauer spectroscopy;archaeology   
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        发布时间：2022-08-16
      • Chengan Liu
        Vol. 12, Issue 8-09, (1989)
        摘要：In this paper, the physical problems on the plasma magnetic confinement, the blanke neutronics design, the fissile-fuel production and the energy gain etc. have been introduced. Both strong point of the fusion-fission hybrid reactor and its important role in the transition from fission energy resource to fussion energy resource have been expounded.  
        关键词：Fusion-fission hybrid reactor;Magnetic confinement;Blanket design;Tritium breeding;Fissile-fuel production   
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        发布时间：2022-08-16
      • Mingdong Hou
        Vol. 12, Issue 8-09, (1989)
        摘要：The heavy ion accelerator is not only a powerful tool for nuclear physics, but opens many new application fields of heavy ions. This paper gives a brief review on some aspects of the applied research with heavy ion beams. In view of the fact that Lanzhou Heavy Ion Research Facility, the first heavy ion accelerator in China, has been constructed to produce the beams, it is possible to do the research work in these fields.  
        关键词：Heavy ion beam;Radiation effect;Nuclear track technique;Adhesion;Radiation damage simulation;Inertial confinement;Radiotherapy   
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        发布时间：2022-08-16
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