学科:核地质学 词目:活化截面 英文:activation cross section 释文:活化截面是有效截面的一种,粒子击中靶后被原子核俘获并产生放射性核素的几率。
在利用活化法进行中子能谱测量中,活化箔的多群截面是必须的输入参数之一。
The multiple group cross sections are indispensable when we want to obtain the neutron spectrum by multiple foil activation method.
考虑镉的屏蔽和探测箔的自身散射影响后的屏蔽,求出每一种探测箔在中能区各群的中子屏蔽因子,从而求得有效活化反应截面。
Neutron shielding factors of the foil are calculated for each group in intermediate energy range with detail consideration of cadmium filter and scattering by the foil itself.
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