Results of fission products ß decay properties measurement performed with a total absorption spectrometer
Results of fission products ß decay properties measurement performed with a total absorption spectrometer
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裂变产物的结果 - 使用全吸收光谱仪进行的衰变特性测量
DOI：
10.1051/epjconf/20146610019
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发表时间：
2014
影响因子：
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通讯作者：
Zakari-Issoufou A
中科院分区：
文献类型：
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作者：
Zakari-Issoufou A
裂变产物的β衰变特性对于应用反应堆物理学非常重要，例如估计反应堆关闭后立即释放的衰变热和估计释放的通量。为了反应堆的运行安全和不扩散等目的，必须准确估计反应堆的衰变热和放射通量。为了提高对这些量的预测精度，必须校正由于Pandemonium效应影响某些重要裂变产物数据而产生的偏差。在于韦斯屈莱的JYFL设施中，用全吸收光谱仪（TAS）对裂变产物β衰变进行了新的测量，但对这种效应不敏感。将介绍TAS技术的概述和2009年活动的初步结果。
β-decay properties of fission products are very important for applied reactor physics, for instance to estimate the decay heat released immediately after the reactor shutdown and to estimate the flux emitted. An accurate estimation of the decay heat and the emitted flux from reactors, are necessary for purposes such as reactors operation safety and non-proliferation. In order to improve the precision in the prediction for these quantities, the bias due to the Pandemonium effect affecting some important fission product data has to be corrected. New measurements of fission productsβ-decay, not sensitive to this effect, have been performed with a Total Absorption Spectrometer (TAS) at the JYFL facility of Jyväskylä. An overview of the TAS technique and first results from the 2009 campaign will be presented.