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arXiv 0906.3058nucl-ex
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$(\overline{n},γ)$反应产生的$^{237}$ U核的能级密度和辐射强度函数

Level Density and Radiative Strength Functions of the $^{237}$U Nucleus from the $(\overline{n},γ)$ Reaction

A. M. Sukhovoj, V. A. Khitrov, V. M. Maslov

摘要:

对$^{236}U$中共振中子俘获后初级γ量子强度的已发表数据进行了独立分析。这些强度的平均值的分布近似在不同的能量区间的初级γ跃迁和中子。外推所获得的功能的主要伽玛跃迁强度的零注册阈值,使我们能够估计(独立于其他实验方法)预期的水平数的两个奇偶自旋值J=1/2,3/2和总和的辐射宽度为电和磁偶极子伽玛跃迁的激发能高达$\approx 2.3$兆电子伏的水平。

英文摘要:

The independent analysis of the published data on the intensities of the primary gamma-quanta following resonance neutron capture in $^{236}U$ has been performed. Distribution of these intensities about the mean value was approximated in different energy intervals of the primary gamma-transitions and neutrons. Extrapolation of the obtained functions to the zero registration threshold of the primary gamma-transition intensity allowed us to estimate (independently on the other experimental methods) expected level number of both parities for spin values J=1/2, 3/2 and sum of radiative widths for both electric and magnetic dipole gamma-transitions to levels with excitation energy up to $\approx 2.3$ MeV.

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