1993年 第10卷 第4期
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1993, 10(4): 1-5.
doi: 10.11804/NuclPhysRev.10.04.001
摘要:
本文概述了核物理新的研究机遇,这机遇是:(1)在核介质内,寻找和研究夸克自由度,研究强相互作用的基本理论QCD;(2)研究核物态方程;(3)研究夸克胶子等离子体(QGP);(4)研究各种极端条件下的核结构;(5)核介质用于精确研究强、电弱相互作用的基本性质等。为此,4GeV连续束电子加速器CEBAF、相对论重离子对撞机RHIC正在建造,强子装置和放射性核束加速器正在筹备。 The most new scientific opportunities of nuclear physics are: the exploration of the quark degrees of freedom and of the underlying theory of the strong interaction, QCD, in the nuclearmedium; the study of the nuclear equation of state and of quark-gluon plasma (QGP); the study ofnuclear structure at the limits of temperature, angular momentum, and neutron-to-proton ratios; theuse of the nuclear medium for precision studies of fundamental aspects of the strong and...
本文概述了核物理新的研究机遇,这机遇是:(1)在核介质内,寻找和研究夸克自由度,研究强相互作用的基本理论QCD;(2)研究核物态方程;(3)研究夸克胶子等离子体(QGP);(4)研究各种极端条件下的核结构;(5)核介质用于精确研究强、电弱相互作用的基本性质等。为此,4GeV连续束电子加速器CEBAF、相对论重离子对撞机RHIC正在建造,强子装置和放射性核束加速器正在筹备。 The most new scientific opportunities of nuclear physics are: the exploration of the quark degrees of freedom and of the underlying theory of the strong interaction, QCD, in the nuclearmedium; the study of the nuclear equation of state and of quark-gluon plasma (QGP); the study ofnuclear structure at the limits of temperature, angular momentum, and neutron-to-proton ratios; theuse of the nuclear medium for precision studies of fundamental aspects of the strong and...
1993, 10(4): 6-10.
doi: 10.11804/NuclPhysRev.10.04.006
摘要:
本文描述了在通常的夸克势模型中的夸克蜕定域、色屏蔽及核力特性,对所得核子—核子绝热近似势和散射相移进行了定性描述:既有排斥心,又有中程吸引,但没有Van der Waals力问题,变分给出蜕定域的数值也是合理的,对质心运动效应、色屏蔽形式的影响以及各种单夸克基矢的关系和选择问题进行了专门的研究。 We introduce the quark delocalization and color screening into the usual quark modeland the property of nuclear force. The resulting N-N phase shifts and the adiabatic potential aredescribed qualitatively well: there are exclusion core and also intermediate range attraction, but thereis no Van der Waals force. The delocalization parameter obtained from variational method is alsoreasonable. we consider especially the effect of mass center motion, the effect of forms of colorscreening...
本文描述了在通常的夸克势模型中的夸克蜕定域、色屏蔽及核力特性,对所得核子—核子绝热近似势和散射相移进行了定性描述:既有排斥心,又有中程吸引,但没有Van der Waals力问题,变分给出蜕定域的数值也是合理的,对质心运动效应、色屏蔽形式的影响以及各种单夸克基矢的关系和选择问题进行了专门的研究。 We introduce the quark delocalization and color screening into the usual quark modeland the property of nuclear force. The resulting N-N phase shifts and the adiabatic potential aredescribed qualitatively well: there are exclusion core and also intermediate range attraction, but thereis no Van der Waals force. The delocalization parameter obtained from variational method is alsoreasonable. we consider especially the effect of mass center motion, the effect of forms of colorscreening...
1993, 10(4): 11-15.
doi: 10.11804/NuclPhysRev.10.04.011
摘要:
原子团簇(或原子簇)和原子核内部粒子之间的相互作用是根本不同的,但都是含有一定数目的多粒子系统,存在着某些相似特性,如饱和性、壳结构、幻数与同位素效应、变形特性和复合团簇(核)过程等,这些相似性是核物理学家、原子物理学家以及化学家们共同关心的问题。 Both atomic clusters (microclusters) and nuclei are systems of the finite number ofparticles but with different interaction forces among the component particles, and have somesimilarities in their properties, such as saturation, shell structures, magic numbers, isotopic effect,deformation and compound clusters (nuclear) process, etc. The similarities rivet attention in manyscientific communities from nuclear, atomic and molecular, and condensed matter physics as well aschemistry.
原子团簇(或原子簇)和原子核内部粒子之间的相互作用是根本不同的,但都是含有一定数目的多粒子系统,存在着某些相似特性,如饱和性、壳结构、幻数与同位素效应、变形特性和复合团簇(核)过程等,这些相似性是核物理学家、原子物理学家以及化学家们共同关心的问题。 Both atomic clusters (microclusters) and nuclei are systems of the finite number ofparticles but with different interaction forces among the component particles, and have somesimilarities in their properties, such as saturation, shell structures, magic numbers, isotopic effect,deformation and compound clusters (nuclear) process, etc. The similarities rivet attention in manyscientific communities from nuclear, atomic and molecular, and condensed matter physics as well aschemistry.
1993, 10(4): 16-20.
doi: 10.11804/NuclPhysRev.10.04.016
摘要:
本文介绍自1984年发现~(223)Ra发射~(14)C衰变现象以来,用于统一描述α衰变、集团衰变和自发裂变的两类原子核衰变模型——集团模型和统一模型的发展概况,并指出它们存在的问题。 Both cluster models and unified models, describing in a unified manner alpha decay,cluster decay and spontaneous fission, are briefly introduced. The developments and problems ofnuclear decay models are also described.
本文介绍自1984年发现~(223)Ra发射~(14)C衰变现象以来,用于统一描述α衰变、集团衰变和自发裂变的两类原子核衰变模型——集团模型和统一模型的发展概况,并指出它们存在的问题。 Both cluster models and unified models, describing in a unified manner alpha decay,cluster decay and spontaneous fission, are briefly introduced. The developments and problems ofnuclear decay models are also described.
1993, 10(4): 21-24.
doi: 10.11804/NuclPhysRev.10.04.021
摘要:
本文研究中等和重质量核14MeV中子(n,t)反应截面的系统学特征,在考虑奇偶效应的基础上给出了系统学经验公式,计算结果和实验值符合较好,还讨论了Q值效应及可能的反应机制。 The systemaic characters of (n,t) reaction cross sections have been studied for mediumand heavy mass nuclei at 14 MeV. A set of the empirical formulas have been given on the bases of theodd-even effects. The (n,t) reaction cross sections of some nuclei have been calculated, and a goodagreement with the experimental data have been obtained. The Q-value effect and possible reactionmechanism are also discussed.
本文研究中等和重质量核14MeV中子(n,t)反应截面的系统学特征,在考虑奇偶效应的基础上给出了系统学经验公式,计算结果和实验值符合较好,还讨论了Q值效应及可能的反应机制。 The systemaic characters of (n,t) reaction cross sections have been studied for mediumand heavy mass nuclei at 14 MeV. A set of the empirical formulas have been given on the bases of theodd-even effects. The (n,t) reaction cross sections of some nuclei have been calculated, and a goodagreement with the experimental data have been obtained. The Q-value effect and possible reactionmechanism are also discussed.
1993, 10(4): 25-29.
doi: 10.11804/NuclPhysRev.10.04.025
摘要:
本文论述放射性束加速的原理、国际现状和相应学科的发展前景.The principle and the present situation as well as the prospects corresponded to thephysics of RI beams are described.
本文论述放射性束加速的原理、国际现状和相应学科的发展前景.The principle and the present situation as well as the prospects corresponded to thephysics of RI beams are described.
1993, 10(4): 30-34.
doi: 10.11804/NuclPhysRev.10.04.030
摘要:
本文主要描述了新一代多重探测器的组成结构、粒子鉴别原理和能量定标方法,在粒子鉴别中,详细介绍了利用phoswich快慢成分△E-E望远镜和CsI快慢鉴别图三种方法。The construction, particle identification principle and energy calibration method of new generation multidetector are described. In the particle identification, three methods are presented:phoswich fast-slow composition, ΔE-E telescope and CsI fast-slow identification matrix.
本文主要描述了新一代多重探测器的组成结构、粒子鉴别原理和能量定标方法,在粒子鉴别中,详细介绍了利用phoswich快慢成分△E-E望远镜和CsI快慢鉴别图三种方法。The construction, particle identification principle and energy calibration method of new generation multidetector are described. In the particle identification, three methods are presented:phoswich fast-slow composition, ΔE-E telescope and CsI fast-slow identification matrix.
1993, 10(4): 35-38.
doi: 10.11804/NuclPhysRev.10.04.035
摘要:
本文综述了我国核农学的研究领域及国际上的研究现况,并介绍了我们在这一领域内取得的成果和发展前景。The research status of nuclear agronomy in our country and its development in othercountries are summaried in this paper. The results obtained in nuclear agronomy and its prospect arealso introduced.
本文综述了我国核农学的研究领域及国际上的研究现况,并介绍了我们在这一领域内取得的成果和发展前景。The research status of nuclear agronomy in our country and its development in othercountries are summaried in this paper. The results obtained in nuclear agronomy and its prospect arealso introduced.
1993, 10(4): 39-42.
doi: 10.11804/NuclPhysRev.10.04.039
摘要:
本文介绍了一台通用性低能离子束装置、主要性能、利用它开展的一些新的离子束应用及实验结果。 A versatile low energy ion facility and its main specifications are described. Some newion beam applications and experimental results are given.
本文介绍了一台通用性低能离子束装置、主要性能、利用它开展的一些新的离子束应用及实验结果。 A versatile low energy ion facility and its main specifications are described. Some newion beam applications and experimental results are given.
1993, 10(4): 43-46.
doi: 10.11804/NuclPhysRev.10.04.043
摘要:
本文简要地介绍闪烁光纤的工作原理,指出了掺Tb~(3+)和Ce~(3+)闪烁玻璃光纤的谱特性和衰变时间常数,将它们和CeF_3与其它元机闪烁材料的特性进行了比较,从而得知CeF_3及掺Ce~(3+)闪烁玻璃光纤存在着潜在的巨大应用市场。 The working principle of scintillating fibers is briefly introduced in this paper. Thedecay time constant and spectral properties of the scintillating fibers of Tb_2O_3 and Ce_2O_3 glass aregiven. Comparing the properties of materials above and CeF_3 with those of other inorganic scintillatingmaterials, we find that CeF_3 and scintillating fibers of the Ce_2O_3 have an immense potential applicationmarket.
本文简要地介绍闪烁光纤的工作原理,指出了掺Tb~(3+)和Ce~(3+)闪烁玻璃光纤的谱特性和衰变时间常数,将它们和CeF_3与其它元机闪烁材料的特性进行了比较,从而得知CeF_3及掺Ce~(3+)闪烁玻璃光纤存在着潜在的巨大应用市场。 The working principle of scintillating fibers is briefly introduced in this paper. Thedecay time constant and spectral properties of the scintillating fibers of Tb_2O_3 and Ce_2O_3 glass aregiven. Comparing the properties of materials above and CeF_3 with those of other inorganic scintillatingmaterials, we find that CeF_3 and scintillating fibers of the Ce_2O_3 have an immense potential applicationmarket.
1993, 10(4): 47-49.
doi: 10.11804/NuclPhysRev.10.04.047
摘要:
高功率脉冲离子注入是金属表面改性的一种新手段,本文简要介绍了高功率脉冲离子束注入金属材料的过程和一些实验结果。 The implantation by using high power pulsed ion beams is a new way of metal surfacemodification. The processes and some experimental results of the implantation by using high power.
高功率脉冲离子注入是金属表面改性的一种新手段,本文简要介绍了高功率脉冲离子束注入金属材料的过程和一些实验结果。 The implantation by using high power pulsed ion beams is a new way of metal surfacemodification. The processes and some experimental results of the implantation by using high power.
1993, 10(4): 50-53.
doi: 10.11804/NuclPhysRev.10.04.050
摘要:
本文简要介绍了我国自主设计的秦山核电二期工程的情况,着重分析了厂址的特点以及核蒸气供应系统、专设安全设施、核辅助系统、附属系统、常规岛设计、仪表与控制系统、厂用电系统和厂房布置的设计特点,扼要概括了总的设计原则及其技术特点。 The basic design for Qinshan Nuclear Project Ⅱ is briefly introduced, which mainlyanalyzes the project site and the design for NSSS, special engineered safety, nuclear auxiliray system,annex systems, conventional island, Instrument and Control systems, power supply and distributionsystems and arrangement for buildings. The general design principle and technical features aresummarized in this paper.
本文简要介绍了我国自主设计的秦山核电二期工程的情况,着重分析了厂址的特点以及核蒸气供应系统、专设安全设施、核辅助系统、附属系统、常规岛设计、仪表与控制系统、厂用电系统和厂房布置的设计特点,扼要概括了总的设计原则及其技术特点。 The basic design for Qinshan Nuclear Project Ⅱ is briefly introduced, which mainlyanalyzes the project site and the design for NSSS, special engineered safety, nuclear auxiliray system,annex systems, conventional island, Instrument and Control systems, power supply and distributionsystems and arrangement for buildings. The general design principle and technical features aresummarized in this paper.
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