堆中子活化分析中的另一重要干扰是堆快中子引起的阈反应干扰。
Another important kind of interferences in reactor NAA is due to threshold reaction induced by reactor fast neutrons.
在不同实验系统上，测量了铁球壳表面不同位置上中子引起的绝对裂变反应率分布。
In different experiment systems, absolute fission reaction rates, derived from reflection neutrons, at different positions of the surface of an iron spherical shell were measured.
并用MCNP程序模拟了在高压倍加器的实验条件下的散射中子能谱，进而计算了低能散射中子引起的修正量。
The incident neutron spectrum at the experimental condition has been simulated with the code MCNP, and the scattering neutron influence has been calculated with the spectrum.
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