In order to obtain optimum advantage factor, it is recommended that different channels (or even different reactors) be used for total reactor neutron spectrum activation (TNA) and epithermal neutron activation (ENA).

• 为了得到最佳有利因子,推荐在不同孔道(甚至不同的堆)上分别进行全堆谱中子活化(TNA)和超热中子活化(ENA)。