脉冲中子－中子测井仪
pulsed netron-netron logger
每次裂变后的中子产额
neutrons yield per fission
nu factor
中子产额测定
Neutron yield determination
中子产额的稳定性
Stability of neutron yields
中子产额稳定性
stability of neutron yield
中子每次吸收的中子产额
neutron yield per absorption
中子—中子反应
neutron-neutron re-action
中子中子碰撞
collision between neutrons
中子-中子散射
neutron neutron scattering
中子—中子甄别
Neutron-neutron discrimination