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Expression for the reactivity worth of a number of small cylindrical black control elements arranged as a closely spaced ring 若干排列成紧密间隔环的黑色小圆柱形控制元件的反应性值的表达式
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90034-8
K. Balakrishnan
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引用次数: 0
Mathematical theory of transport processes in gasesJ. H. Ferziger and H. G. Kaper, North Holland, Amsterdam (1972). pp. 579 气体输运过程的数学理论[j]。H. Ferziger和H. G. Kaper，北荷兰，阿姆斯特丹(1972)。579页。
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90037-3
M. Williams
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引用次数: 1
Expansion of editorial coverage and service to contributors and readers of journal of nuclear energy 扩大《核能》杂志的编辑范围，为投稿人和读者提供服务
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90028-2
John P. Howe, M.M.R. Williams
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引用次数: 0
Neptunium-237 production and recovery 镎-237的生产和回收
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90036-1
Martin J. Steindler
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引用次数: 10
Equivalence relations for resonance integral calculations 共振积分计算的等价关系
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90033-6
R.J.J. Stamm'ler, J. Blomstrand, Z.J. Weiss
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引用次数: 4
The neutron yield from Li, Be, Co and Cu under proton bombardment at energies from 5 to 10 MeV Li, Be, Co和Cu在5 ~ 10 MeV质子轰击下的中子产额
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90032-4
M.Ashraf Atta , Malcolm C. Scott

A continuous flow vanadium bath has been used to measure the neutron yield from different accelerator targets, and the correction factors which have to be applied are discussed. The results of yield measurements for protons from 5 to 10 MeV on thick targets of Li, Be, Cu and Co are given and compared with calculated values. Based on these comparisons comments are made on the accuracy of the cross sections used in the yield calculations.

用连续流钒浴测量了不同加速器靶的中子产率，讨论了需要采用的校正系数。给出了5 ~ 10 MeV质子在Li、Be、Cu和Co等厚靶上的产率测量结果，并与计算值进行了比较。在此基础上，对计算屈服截面的精度作了评价。
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引用次数: 5
An exact solution of a transcendental equation basic to the theory of intermediate resonance absorption of neutrons 中子中间共振吸收理论基础的一个超越方程的精确解
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90029-4
C.E. Siewert , J.T. Kriese

The theory of complex variables is used to solve explicitly a transcendental equation essential to the intermediate-resonance-absorption theory for neutrons. The closed-form solutions are expressed ultimately in terms of elementary quadratures.

复变量理论用于显式地求解中子中间共振吸收理论所必需的一个超越方程。闭型解最终用初等正交表示。
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引用次数: 5
Analytical chemistry of nuclear fuels/proceedings of a Panel, Vienna 核燃料分析化学/小组会议记录，维也纳
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90035-X
G.N. Walton
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引用次数: 0
Mathematical theory of transport processes in gases 气体输运过程的数学理论
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90037-3
M.M.R. Williams
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引用次数: 1
The emission spectra of NaD2O, InBe, LaBe and NaBe photoneutron sources NaD2O、InBe、LaBe和NaBe光子中子源的发射光谱
Journal of Nuclear Energy
Pub Date : 1973-12-01 DOI: 10.1016/0022-3107(73)90031-2
K. Mueck, F. Bensch

The energy distribution of the photoneutrons of NaD2O, InBe, LaBe and NaBe source systems were measured by means of a proton-recoil proportional counting tube. Spherical lead-shields of various thicknesses (ranging from 1·5 to 13 cm) were used to reduce the intense gamma field accompanying the neutron spectra to be measured. The spectra of spherical heterogeneous source arrangements for three different Be-target thicknesses (0·5, 1· and 2·0 cm) were measured and compared with the theoretical distribution as obtained by Monte-Carlo calculations. The change in spectrum shape due to the lead shields was also calculated by a Monte-Carlo routine. Good agreement between theoretical predictions and experimental results shows values for the peak of the neutron distribution of 264·1 ± 0·5 keV for the NaD2O system, 397·3 ± 0·8 keV for the InBe system, 761·7 ± 0·7 keV for the LaBe system, and 966·9 ± 0·5 keV for the NaBe source system. With the LaBe system a second neutron group of much lower intensity (6·5 per cent of the main group) could be found with a peak energy of 1097·5 +- 1·0 keV in good agreement to recent gamma-spectroscopic measurements.

用质子反冲比例计数管测量了NaD2O、InBe、LaBe和NaBe源体系的光子中子能量分布。采用不同厚度(1.5 ~ 13 cm)的球形铅屏蔽层来减弱伴随待测中子能谱的强伽马场。测量了三种不同be靶厚度(0·5、1·和2·0 cm)的球形非均质源排列的光谱，并与蒙特卡罗计算得到的理论分布进行了比较。由铅屏蔽引起的光谱形状的变化也通过蒙特卡罗程序计算出来。理论预测与实验结果吻合较好，NaD2O系统的中子分布峰值为264·1±0.5 keV, InBe系统为397.3±0.8 keV, LaBe系统为761·7±0.7 keV, NaBe源系统为966·9±0.5 keV。在LaBe系统中，可以发现强度低得多的第二个中子群(占主群的6.5%)，峰值能量为1097·5 +- 1·0 keV，这与最近的伽玛光谱测量结果很吻合。
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引用次数: 6
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