• 公式高度地反映所有原子核内质子中子分布整数规律

    Above formula highly reflect the integer law of protons and neutrons distributing in all kinds of atomic nuclei.

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  • 详细研究了亲近势度,发现用中子中子分布弥散变化较好地解释中子过剩自由度亲近势标度偏离影响

    It is found that the neutron skin and the neutron distribution diffusion can explam the influence of the neutron excess degree of freedom on the proximity scaling.

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  • 这种情况下,如果采用扩散理论计算这种组件内的中子分布引起相当误差蒙特卡罗方法非常适合处理这种情况的。

    To calculate the neutron distribution, in this case, a rather big errors would occur if the diffusion theory be used. However, Monte Carlo Method is suitable at dealing with the problem.

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  • 一个撞击235原子中子释放出一些γ,一些中子创造出2个裂变碎片,它们自己出现分布

    A neutron striking a uranium 235 atom, releasing some gammas and some neutrons, creating two fission fragments which themselves have a distribution of occurrence.

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  • 测量反应堆堆中子通量分布

    Neutron flux distributions in the reactor core are measured.

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  • 研究利用穿透概率求解六角形轻水燃料组件中子通量密度分布

    The paper describes the model for calculating the neutron flux density distribution in two dimensional hexagonal geometry assembly of light water reactor (LWR) by transmission probability method.

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  • 本文提出中子掺杂硅单晶旋转辐照模型给出中子通量断面分布平均值不均匀度。

    The rotating irradiation model for ND silicon presented in this paper gives distribution, mean value and heterogeneity of the thermal flux on the cross section of silicon.

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  • 介绍了研究堆中子通量分布测量数据计算机处理原理方法开发工作情况

    The computer system of neutron distribution measurement and data processing in pool type reactor including its principle, method, design and work situation is described.

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  • 利用中子活化分析技术测定玻璃不同部位中的多种元素含量分布状况变化

    Meanwhile the variation and status of distribution of many elements content in the different parts of vitreous shoot were determined by neutron activation analysis technique.

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  • 计算和对比了使用聚焦单色平板单色器强度增益样品位置处中子强度分布

    The intensity gains comparing to flat monochromator and the neutron intensity distribution at sample position were also given.

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  • 软件模型的基础分别计算了不同能量的中子进行治疗时的肿瘤正常组织剂量分布计算结果进行了分析。

    The neutron absorbed dose rate distributions for tumour and natural histiocyte are calculated respectively based on this software and the results are analyzed.

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  • 测量响应径向微分响应、能量响应腔内中子计数分布估算有效中心

    The angular response, the radial differential response, the energy response and the distribution of neutron counting rate inside sphere cavity are measured, and the effective centre is estimated.

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  • 讨论了穿透概率求解六角形几何轻水堆燃料组件中子通量分布

    The flux distribution of two dimensional hexagonal geometry fuel assembly for LWR is studied, using the transmission probability method.

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  • 不同实验系统上,测量了表面不同位置中子引起绝对裂变反应分布

    In different experiment systems, absolute fission reaction rates, derived from reflection neutrons, at different positions of the surface of an iron spherical shell were measured.

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  • 系统计算中子混凝土中的剂量分布实验结果符合得较好

    The dose rate distributions calculated with RSCAM in square concrete duct agree well with experiments.

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  • 本文叙述了用裂变径法测量中子发生器中子注量分布方法

    A measurement method of neutron fluence distribution for intensive beam generators based on the fission tracks was described.

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  • 并且给出分布次级中子能谱

    Angular distributions and energy spectra of secondary neutron are also given.

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  • 中子密度空间分布曲率功率变化的,因此模型方程的解析精确

    The space curvature of neutron density of this solution is changed according to the changes of reactor power, so it is more precise than the analytic solution of point reactor model.

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  • 天文学家们脉冲星以及中子一超新星爆炸后残留物分布信息兴趣。我们当前的理解是否正确?

    Astronomers will be interested in the new information regarding the population of pulsars, and hence neutron stars, as remains of supernova explosions.

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  • 作者MCNP基础上,开发中子测井,中子通量随能量时间分布蒙特卡罗(MC)模拟软件包

    Based on MCNP, authors developed the software package of the Monte Carlo method to simulate the neutron flux distributions with the space, energy and time for neutron logging.

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  • 计算结果表明,脉冲引发时刻概率分布计算结果实验结果符合较好所获得中子发射规律合理解释引发时刻概率分布的实验结果。

    The result of initiation time is consistent with experiment. Emission rate of delayed neutron attained from calculation can well explain the probability distribution of initiation time.

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  • 中子衍射方法可以用来测量材料内部的三维残余应力分布一种重要无损检测分析手段。

    Neutron diffraction, an important non-destructive testing method, can facilitate 3-d mapping of residual stress in a bulk component.

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  • 六角形节块中子通量密度分布采用多项式近似表示,最后导出通量矩方程偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。

    The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.

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  • 六角形节块中子通量密度分布采用多项式近似表示,最后导出通量矩方程偏流的响应矩阵方程。应用粗网再平衡和渐近源外推方法加速收敛。

    The nodal equations and response matrix equations are derived using higher order polynomial approximations to the spatial dependence of the flux within the hexagonal-z node.

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