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1992年  第9卷  第3期

第八届全国核物理会议大会论文集
第八届全国核物理会议大会特邀报告
强子结构与核结构
杨立铭
1992, 9(3): 1-3. doi: 10.11804/NuclPhysRev.09.03.001
摘要:
本文列举了核内存在非核子自由度的证据;论证了核结构的研究必须突破传统的框架,进入到核子及介子的内部结构,才能对原子核内部运动有深入的了解.本文还扼要论述了核物理研究的现状与前景. This paper presents some important experimental evidences of non-nucleonic degrees of freedom in nuclei.From these evidences,the nuclear structure research must go be- yond the traditional framework of nuclear research.To get deeper understanding of the nucle- us,one has to go to the internal structure of hadrons.The present status and future prospects of this new development in nuclear physics are also dicussed briefly.
核物理研究新进展
姜承烈
1992, 9(3): 4-10. doi: 10.11804/NuclPhysRev.09.03.004
摘要:
本文介绍了国际核物理研究的趋势,核物理研究的前沿已从传统核物理转向亚核自由度变得重要的领域,讨论了在核结构、核反应、相对论性重离子碰撞、亚核自由度、放射性核束和核天体物理学等领域所获得的最新成果. It is presented the trend of the nuclear physics research in the world,the fron- tier of nuclear physics research has been moved from the traditional nuclear physics to the field in which the subnuclear freedoms become very important.New research results obtained in the fields of nuclear structures,nuclear reactions,relativistic heavy ion collisions, subnuclear freedoms,radioactive nuclear beams and nuclear astrophysics are discussed.
量子不可积性和随机矩阵理论
徐躬耦
1992, 9(3): 11-14. doi: 10.11804/NuclPhysRev.09.03.011
摘要:
本文概述了量子不可积性的拓扑观.按拓扑观点探讨了量子体系完全可积的条件,通向不可积的机制,以及在量子不可积条件下的能谱性质,从动力学角度阐明了随机矩阵理论的基础,还简要讨论了这些理论在核结构问题中的应用. Quantum nonintegrability is studied in a topological view.The condition for complete integrability of quantum systems and the mechanism leading to global nonintegrability are investigated.The basis of random matrix theory for describing energy spectra of nonintegrable quantum systems is clarified.Applications to nuclear structure are briefly discussed.
含氘固体中异常核现象研究动态综述
李兴中
1992, 9(3): 15-18. doi: 10.11804/NuclPhysRev.09.03.015
摘要:
简要回顾这一有争议的研究在国内、外的进展.着重报道第二届冷聚变年会(意大利)所介绍的四热点的动态,并以“美国冷聚变研究所”产氚实验的进展说明这是一项要认真加以探索的异常核现象. The controversial studies on the anomalous nuclear phenomena in deuterium/solid systems are briefly reviewed based on the progress at home and abroad. Four updated research reports,which were released in the Second Annual Conference on Cold Fusion (Como,Italy),are recapitulated.The elaborate tritium measurement at the “National Cold Fusion Institute”showed that this anomalous nuclear phenomenon should be seriously explored further.
在HIRFL上的中能重离子物理基础和应用研究
罗亦孝
1992, 9(3): 19-27. doi: 10.11804/NuclPhysRev.09.03.019
摘要:
本文总结了三年来在兰州重离子研究装置(HIRFL)上进行的科研工作和取得的成果.简单介绍了HIRFL 的工作状态、次级束流线与ECR 离子源的发展、中能重离子引起的反应研究、热核与远离β稳定线核素的合成与研究和重离子束的应用等. A The scientific activities and achievements made at the Heavy Ion Research Facil- ity Lanzhou (HIRFL) during the past three years are summarized.In addition to the brief in- troduction of the operation status of HIRFL and the development of the secondary beam line and an ECR ion source,the paper describes the experimental studies of intermediate ener- gy heavy ion-induced reactions,the investigation of hot nuclei,the synthesis and study of nuclei far from ...
穆斯堡尔谱学研究进展
夏元复
1992, 9(3): 28-32. doi: 10.11804/NuclPhysRev.09.03.028
摘要:
本文评述1988~90年穆斯堡尔谱学的进展.穆斯堡尔效应的应用继续扩展到几乎所有的科学领域.论文主要涉及基础研究,有些涉及工业应用和材料研究.论文年发表数持续快速增长.在这期间由每年发表1500篇增至1800篇.国际会议频繁,并且大量被评述.它们总的表明,这个研究领域是非常活跃的. The developments and achievements in M(?)ssbauer spectroscopy during recent 3 years are reviewed.The use of the M(?)ssbauer effect is still increasing and expanding to all subjects of sciences.Most of the papers concern with fundamental research,some refer to in- dustrial applications and many are about material research.The growth in the M(?)ssbauer lit- erature continues rapidly.During this period of time the number of M(?)ssbauer publications increased from ...
北京谱仪在北京正负电子对撞机上的进展
祝玉灿
1992, 9(3): 33-36. doi: 10.11804/NuclPhysRev.09.03.033
摘要:
本文简要介绍北京谱仪在北京正负电子对撞机上的进展。概述了北京正负电子对撞机和北京谱仪的性能,北京谱仪在J/ψ物理方面获取的初步结果及在τ质量测量方面的阶段状况. The progress of Beijing Electron Spectrometer (BES) at the Beijing Electron-Positron Collider (BEPC) are introduced here briefly.The major performance of the BEPC and BES,the preliminary results on J/Ψ physics and the status of τ mass measurment aredescribed.
中能重离子核反应和极端条件下原子核性质的研究
诸永泰
1992, 9(3): 37-42. doi: 10.11804/NuclPhysRev.09.03.037
摘要:
中能区([10~100]MeV/u)是一个由平均场相互作用向核子-核子相互作用的过渡区.在这两种不同的碰撞机制之间没有明确的分界线.它们之间的并存和逐步过渡使反应机制变得相当复杂,在实验上和理论上的研究都是十分有意义的,是当前核物理的前沿领域.弹核碎裂和中等质量碎片的发射是研究反应机制变化的重要课题.对热核的形成和衰变的研究,可以拓广人们对极端条件下核物质运动规律的认识.放射性核次级束流传输线的建立将提供用放射性核进行总反应截面、弹性碰掸和其它反应过程研究的可能性. The intermediate energy domain ([10~100]MeV/u) is a transitional region from the mean field interaction to the nucleon-nucleon interaction.There is no clear borderline between these two different collision mechanisms.There coexistence and progres- sive transition make the reaction mechanism quite complicated in this energy region.The ex- perimental and theoretical study on the reaction mechanism,which is fascinating and impor- tant,is a frontier of nuclear physics...
原子核物理及核技术在北京大学
江栋兴
1992, 9(3): 43-48. doi: 10.11804/NuclPhysRev.09.03.043
摘要:
本文介绍了北京大学在原子核物理及核技术领域的研究工作和已建成的实验基地.实验基地的主体是一个小加速器群,它们能提供多种离子束流并在能区上彼此配套. Activities on nuclear physics and technology in Beijing University are intro- duced The experimental base including four accelerators which match well one another inenergy region and can provide various ion beams is mentioned.
快中子物理研究和核数据工作现状及发展趋向
唐洪庆
1992, 9(3): 49-53. doi: 10.11804/NuclPhysRev.09.03.049
摘要:
本文着重从学术上介绍了去年九月在北京召开的快中子物理会议,也简要介绍了去年五月在于里希(J(?) Jich)召开的核数据会议的情况.于里希会议是国际核数据系列会议,报告很多.本文仅对一些新的动向和倾向性方面提出一些看法. The International Symposium on Fast Neutron Physics held in Beijing, China in September,1991 is introduced in great detail from sphere of learning and the Inter- national Conference on Nuclear Data for Science and Technology held in Jülich,Germany in May,1991 is presented briefly. The Jülich Conference belongs to the series of international meetings on nuclear data for science and technology.There are quite a number of presentations and posters.Only some new results ...
非大会特邀报告
由裂变激发函数直接确定裂变时标
刘国兴, 郑纪文, 陈克良, 王素芳, 白兴平
1992, 9(3): 56-60. doi: 10.11804/NuclPhysRev.09.03.056
摘要:
本工作对曾经测量的12C+197Au,12C+209Bi 和14N+207Pb 裂变激发函数数据进行分析,并直接确定了裂变时标,结果与类似的工作作了比较,并且还讨论了核粘滞性对裂变时标的影响. The fission timescales are determined directly from the analysis of the measured fission excitation function data for the 12C+197Au,12C+209Bi and 14N+207Pb reac- tions.Our results are compared with those of similar work.The effect of the nuclear viscosity on the fission timescales is also discussed.
核科学技术和材料科学与工程
王能明
1992, 9(3): 61-64. doi: 10.11804/NuclPhysRev.09.03.061
摘要:
本文扼要地介绍了材料科学与工程进展的概况以及核科学技术在材料科学与工程中的应用. The general aspects of materials science and engineering progress,the applica- tions of nuclear science and technology in material science and engineering are briefly introduced in this paper.