核燃料中添加锕系元素对反应堆的影响

The effect to the nuclear reactor after the actinide nuclides added to the nuclear fuel

文章的主要目的是研究核燃料中添加MA后对不同堆型的影响以及各种堆型嬗变MA的可行性。本文采用MCNP4C程序进行模拟,结果显示核燃料中添加MA后对不同的堆型产生不同程度的影响,相对于快堆而言,热堆的反应性、中子通量以及中子能谱受MA的影响很大。研究表明快堆和高通量热中子堆在嬗变MA核素方面具有很高的研究价值。

In this article,we study the effects of different reactors after the MA added to the nuclear fuel,and we also study the feasibility of MA transmutation in different types of nuclear reactor. We simulate the reactor cores by MCNP4C code, our simulations showed that after adding the MA to the nuclear fuel,neutron flux and neutron spectra have different effects in the different reactor cores. In contrast to the fast reactor, the reactivity, the neutron flux and the neutron energy spectrum of the thermal reactor are severely impacted after the MA added to the nuclear fuel. Our results showed that fast reactor and the high flux thermal reactor are promising in transmutation of MA nuclides.