中毒法测量微堆堆芯热中子绝对通量密度

MEASUREMENT OF ABSOLUTE THERMAL NEUTRON FLUX DENSITY IN THE CORE OF MINIATURE NEUTRON SOURCE REACTOR

微型中子源反应堆的反应性和中于通量密度有一定的关系。文章提出用氙中毒法测量微堆堆芯热中子绝对通量密度。对原理和测量条件进行了讨论。该方法新颖，比活化法简单，不需要外加设备，满足工程对精度的要求。

In the miniature neutron source reactor(MNSR) reactivity and neutron flux are related. A xenon poison method is proposed for measurement of thermal neutron flux density. The principle measurement condition and procedures are discussed. The precision of the method is better than that of gold foil activation method.