TOPAZ-Ⅱ反应堆<sup>135</sup>Xe小反应性计算方法研究

TOPAZ-Ⅱ反应堆¹³⁵Xe小反应性计算方法研究

摘要: TOPAZ-Ⅱ反应堆的中子通量密度很低，这使其在运行过程中引入的¹³⁵Xe反应性很小，其数值难以采用现有的蒙特卡罗程序进行计算。本文考虑了中子价值对反应性的作用，采用MVP-BURN程序对TOPAZ-Ⅱ反应堆的¹³⁵Xe小反应性进行了计算。该方法可为其他类似反应堆的小反应性计算提供参考。

Abstract: Due to the very low neutron flux density of TOPAZ-Ⅱreactor, the ¹³⁵Xe reactivity is too small for the Monte Carlo code to get the accurate results. In this paper, the adjoint neutron flux was taken into account, and the MVP-BURN code was used to calculate small ¹³⁵Xe reactivity. This method can also provide a reference for the calculation of small reactivity for other reactors.