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中国评价核参数库和IAEA之推荐输入参数库

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原子核物理评论 2002年第1期19卷 76-80页

作者：苏宗涤黄忠甫刘建峰左义欣余自强陈振鹏马功桂朱耀银李支文张其欣龚惠莉周建明曹小平卢兆启史淑梅戴能雄王豫生中国原子能科学研究院北京102413 广西大学物理系广西南宁530004 郑州大学物理系河南郑州450004 南开大学数学系天津300071 清华大学物理系北京100084 四川大学原子核科学技术研究所四川成都610064 吉林大学物理系吉林长春130023 韶关大学物理系广东韶关512005

概述了为核反应模型计算用的“中国评价核参数库”的发展和结构 ,指出了该数据库在国际核反应数据模型计算的“推荐输入参数库”中的作用和地位 .目前正研制更新的CENPL ,一方面将检验、更新和扩充数据 ,特别注重研究适用于更高能区和... 详细信息

概述了为核反应模型计算用的“中国评价核参数库”的发展和结构 ,指出了该数据库在国际核反应数据模型计算的“推荐输入参数库”中的作用和地位 .目前正研制更新的CENPL ,一方面将检验、更新和扩充数据 ,特别注重研究适用于更高能区和非稳定核区的模型参数 ;另一方面发展其检索软件和网络软件 ,实现网络在线服务 .

关键词：核反应数据模型参数中国评价核参数库数据库 IAEA CENPL 输入参数库计算核反应模型

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核子-核子碰撞截面的参数化公式

原子核物理评论 2010年第4期27卷 416-420页

作者：魏慧玲于勉马春旺河南师范大学物理学系河南新乡453007 新乡医学院生命科学技术系河南新乡453003

核子-核子碰撞截面(σNN)是描述原子核反应模型中的重要物理量。核子-核子碰撞截面包括质子-质子碰撞截面(σpp)、中子-中子碰撞截面(σnn)和中子-质子碰撞截面(σnp),它们随着核子能量与核物质密度的改变而变化。人们在目前研究中提出... 详细信息

核子-核子碰撞截面(σNN)是描述原子核反应模型中的重要物理量。核子-核子碰撞截面包括质子-质子碰撞截面(σpp)、中子-中子碰撞截面(σnn)和中子-质子碰撞截面(σnp),它们随着核子能量与核物质密度的改变而变化。人们在目前研究中提出了多种核子-核子碰撞截面关于能量和核物质密度的参数化公式,通过计算12C+12C的完全反应截面,比较了不同入射能量下使用各种核子-核子碰撞截面参数化公式对12C完全反应截面的影响。

关键词：核子-核子碰撞截面参数化公式介质中的核子-核子碰撞截面核反应模型

Technological conditions and kinetics of leaching copper from complex copper oxide ore

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Journal of Central South University 2009年第6期16卷 936-941页

作者：孙锡良陈白珍杨喜云刘有源 School of Metallurgical Science and Engineering Central South University School of Physics Science and Technology Central South University

The kinetic behavior of leaching copper from low grade copper oxide ore was investigated. The effects of leaching temperature,H2SO4 concentration,particle size of crude ore and agitation rate on the leaching efficiency of copper were also evaluated. And the kinetic equations of the leaching process were obtained. The results show that the leaching process can be described with a reaction model of shrinking core. The reaction can be divided into three stages. The first stage is the dissolution of free copper oxide and copper oxide wrapped by hematite-limonite ore. At this stage,the leaching efficiency is very fast (leaching efficiency is larger than 60%). The second stage is the leaching of diffluent copper oxides,whose apparent activation energy is 43.26 kJ/mol. During this process,the chemical reaction is the control step,and the reaction order of H2SO4 is 0.433 84. The third stage is the leaching of copper oxide wrapped by hematite-limonite and silicate ore with apparent activation energy of 16.08 kJ/mol,which belongs to the mixed control.

关键词：低品位氧化铜矿动力学行为浸出率技术条件核反应模型表观活化能硫酸浓度浸出过程

Theoretical Analysis of Neutron Double—Differential Cross Section of n＋^10B at14.2MeV

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Communications in Theoretical Physics 2003年第1期39卷 433-438页

作者： ZHANGJing－Shang ChinaInstituteofAtomicEnergy P.O.Box275（41）Beijing102413China

By using a new reaction model for light nuclei, the double-differential cross sections of n+ 10B reactions atEn ＝ 14.2 MeV have been analyzed. In the case of n+10B reactions there are over one hundred opened partial reactionchannels. Besides the sequential particle emissions, there is also the three-body breakup process, in which the kinematicsis classified into four types. In this paper the opened reaction channels are listed in detail with the LUNF code, withwhich the model calculation is performed to analyze the total outgoing neutron double-differential cross sections. All ofthe fittings agree fairly well with the measurements. The calculation results indicate that the pre-equilibrium mechanismdominates the whole reaction processes, and the recoil effect in light nuclear reaction is essentially important.

关键词：理论分析微分截面中子核反应模型反应过程 14.2MeV

Double-Differential Cross Section of ^5He Emission

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Communications in Theoretical Physics 2005年第2期43卷 299-304页

作者： YANYu-Liang DUANJun-Feng ZHANGJing-Shang XUGuang ChinaInstituteofAtomicEnergy P.O.Box275（41）Beijing102413China InstituteofNuclearEnergyTechnology TsinghuaUniversityBeijing100086China

The probability of 5He particle emission has been affirmed theoretically [J.S. Zhang, Science in China G47 (2004) 137]. In order to describe the 5He emission, the theoretical formula of the double-differential cross section of emitted 5He is to be established. Based on the pick-up mechanism, used for calculating the formula of d, t, 3He, α emissions, the theoretical formula of double-differential cross section of 5 He is obtained, which is expressed in the form of Legendre coefficients. In the case of low incident energies, the configuration [J.S. Zhang, Science in China G47 (2004)137; J.S. Zhang, Commun. Theor. Phys. (Beijing, China) 39 (2003) 83] is the dominant part in the reaction processes.The calculated result indicates that the forward peaked angular distribution of the composite particle emission is weaker than that of the emitted single nucleon due to pick-up nucleon from the Fermi sea. As an example, the reactions of n + 14N have been calculated, and the Legendre coefficients of d, t, 3He, α, 5He emissions are obtained respectively.The results show that the forward tendency is decided by the average momentum per nucleon in the emitted composite particles. The larger the average momentum is, the stronger the forward tendency is.

关键词：双重微分横截面 ^5氦原子核喷射中子核反应模型

nuclear reaction models and methods fusion reactions

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Communications in Theoretical Physics 2016年第2期65卷 213-218页

作者： F.Lari O.N.Ghodsi Department of Physics School of Sciences University of Mazandaran P.O. Box 47415-416 Babolsar Iran

The behaviors of barrier characteristics are analyzed for spherical-oblate systems over different configurations of colliding nuclei. For this purpose, we have extended our previous study [Phys. Rev. C 89 (2014) 054607], it is devoted to optimum 'cold' and 'hot' configuration] to analyze the same reaction systems in various configurations. The investigation on some chosen systems reveals that the barrier height and its position can be parameterized in times of the different orientations.

关键词：核反应模型融合反应反应体系势垒高度 Rev 参数化系统碰撞

Theoretical Analysis of Neutron Double-Differential Cross Sections of n ＋^9Be Reactions

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Communications in Theoretical Physics 2010年第7期54卷 129-137页

作者：段军锋张竞上吴海城孙小军 China Institute of Atomic Energy College of Physics and Technology Guangxi Normal University

由为轻原子核使用原子反应模型，从 n +9Be 反应的出去的中子的双 differential 十字节的计算被执行。全部的出去的中子仅仅被来从(n， 2n ) 2 反应隧道。(n， 2n ) 2 反应隧道通过六条不同反应途径被完成，它在这份报纸被说明。计算结... 详细信息

由为轻原子核使用原子反应模型，从 n +9Be 反应的出去的中子的双 differential 十字节的计算被执行。全部的出去的中子仅仅被来从(n， 2n ) 2 反应隧道。(n， 2n ) 2 反应隧道通过六条不同反应途径被完成，它在这份报纸被说明。计算结果与测量数据同意很好在在 = 7.1， 8.09， 8.17， 9.09， 9.97 和 10.26 兆电子伏，因为更新的水平与 n 有关策划 +9Be，反应在这被采用了计算。

关键词：核反应模型双微分截面中子计算结果反应通道轻原子核反应截面反应方式

The cross section calculation of 112Sn(α,γ)116Te reaction with different nuclear models at the astrophysical energy range

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Nuclear Science and Techniques 2017年第8期28卷 103-109页

作者： C. Yalcin Department of Physics Kocaeli University 41380 UmuttepeKocaeli Turkey

The theoretical cross section calculations for the astrophysical p process are needed because most of the related reactions are technically very difficult to be measured in the laboratory. Even if the reaction was measured,most of the measured reactions have been carried out at the higher energy range from the astrophysical energies.Therefore, almost all cross sections needed for p process simulation have to be theoretically calculated or extrapolated to the astrophysical energies.^(112)Sn(α,γ)^(116)Te is an important reaction for the p process nucleosynthesis. The theoretical cross section of ^(112)Sn(α,γ)^(116)Te reaction was investigated for different global optical model potentials,level density, and strength function models at the astrophysically interested energies. Astrophysical S factors were calculated and compared with experimental data available in the EXFOR database. The calculation with the optical model potential of the dispersive model by Demetriou et al., and the back-shifted Fermi gas level density model and Brink-Axel Lorentzian strength function model best served to reproduce experimental results at an astrophysically relevant energy region. The reaction rates were calculated with these model parameters at the p process temperature and compared with the current version of the reaction rate library Reaclib and Starlib.

关键词：核反应模型天体物理学截面计算能量范围光学模型势模型参数计算函数模型能级密度

Nuclear Reaction Models for Systematic Analysis of the Fast Neutron Induced （n, p）, （n, a） Nuclear Reaction for Some Stable Nuclide

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材料科学与工程（中英文A版） 2011年第2X期1卷 272-292页

作者： Maha Torj man Department of Physics Faculty of science Albaath University Syria

Investigation of charged particle emission reaction induced by fast neutrons is important for both nuclear reactor technology and the understanding of nuclear reaction mechanisms which no experimental data are available. For systematic analysis of (n, p) and (n,α) reaction cross Section, has been analyzed for incidence neutron energy between (20 MeV and 40 MeV) and for stable isotope 40, 42, 43, 44Ca, 54, 56, 58Fe, 58, 60, 61Ni, 63, 65Cu, 90, 91, 92, 94Zr, 92, 94, 95, 96, 97, 98Mo, 121, 123Sb and 176, 177, 178Hf. To obtain the calculated data, nuclear model TALYS code, it enables to evaluate nuclear reaction from the unresolved resonance region up to intermediate energies) comparing with experimental data have been identified from the current EXIFOR database, and with nuclear data library like JENDL-3-3 data libraries. For these studies we have also looked for the shell effect, so we have chose different kind of nuclide comparing to (neutron- proton number) such we have three kind of nuclide, (even-even, odd-even and even-odd or odd-even nuclides).

关键词：核反应模型稳定核素中子诱发系统实验数据中子能量稳定同位素反应机制