When the neutron decay constant is measured in the zero power assembly, the DT external neutron measurement system (scintillator photomultiplier tube detector ST-PMT) may provide trigger-signal and time correlationship.

• 摘要在零功率堆上进行了衰变常数测量实验中，建立外中子源DT中子测量系统可以为物理诊断系统提供触发信号和时间关联信号。