Improving systematic predictions of β-delayed neutron emission probabilities
Improving systematic predictions of β-delayed neutron emission probabilities
复制标题
改进β延迟中子发射概率的系统预测
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Balraj Singh
中科院分区：
文献类型：
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作者：
E. McCutchan;A. Sonzogni;T. Johnson;D. Abriola;M. Birch;Balraj Singh
β衰变后发射中子的概率Pn在核科学的许多领域都是至关重要的，从理解γ过程中的核合成到控制反应堆功率水平和核废料管理。由于测量或计算不容易，人们发展了间接经验方法，由衰变Qβ值和中子分离能Sn估算Pn值。在这里，我们提出了一个新的处方，也纳入了半衰期T1/2，这与已知数据更好地相关，从而提高了Pn的估计时，只有T1/2，Qβ，和Sn是已知的。这种新的关系可以用来预测Pn值的情况下，半衰期是已知的，因此它可以是有用的r-过程网络计算和先进的燃料循环建模。
The probability Pn of emitting a neutron following β decay is critical in many areas of nuclear science, from understanding nucleosynethesis during the r process to control of reactor power levels and nuclear waste management. As it is not always easy to measure or calculate, indirect empirical approaches have been developed to estimate the Pn value from the decay Qβ value and the neutron separation energy Sn. Here, we present a new prescription incorporating also the half-life T1/2, which correlates the known data better and thus improves an estimation of Pn when only T1/2, Qβ , and Sn are known. This new relation can be used to predict Pn values for cases where the half-life is known, thus it can be useful in r-process network calculations and in modeling advanced fuel cycles.
影响因子：
8.6
作者：
S. Nishimura;Z. Li;H. Watanabe;K. Yoshinaga;T. Sumikama;T. Tachibana;K. Yamaguchi;M. Kurata-Nishimura-M.-Kurata
通讯作者：
S. Nishimura;Z. Li;H. Watanabe;K. Yoshinaga;T. Sumikama;T. Tachibana;K. Yamaguchi;M. Kurata-Nishimura-M.-Kurata