Accurate calculation of neutron-induced displacement damage is a key step for the subsequent investigations on neutron irradiation damage. Due to the use of multigroup displacement damage cross sections, the resonance self-shielding effect of neutron-induced nuclear reaction must be taken into account. In addition to the method proposed by the authors in 2019, two additional methods are proposed in the present work to consider the self-shielding effect on the calculation of neutron irradiation-induced displacement damage. The two newly proposed methods allow directly using self-shielded multigroup nuclear reaction cross sections without infinite-dilution cross sections, even though they are not as consistent as the first one in the case of weak resonance self-shielding effect. The resulting resonance self-shielding corrections on the displacement damage of ⁵⁶Fe in a typical sodium-cooled fast reactor are quite close for the three different methods. The slight differences (within ∼ 2 %) are much smaller than the self-shielding corrections, which are about −11.3 % for the dominant neutron elastic scattering-induced damage and −10.4 % for the total displacement damage.

准确计算中子诱发位移损伤是后续中子辐照损伤研究的关键步骤。由于采用多组位移损伤截面，必须考虑中子诱发核反应的共振自屏蔽效应。除了作者在 2019 年提出的方法外，本工作还提出了另外两种方法来考虑自屏蔽效应对计算中子辐照引起的位移损伤的影响。这两种新提出的方法允许直接使用自屏蔽多群核反应截面而不使用无限稀释截面，即使在弱共振自屏蔽效应的情况下它们不如第一种那样一致。^{对于三种不同的方法，典型钠冷快堆中的56} Fe 非常接近。微小的差异（在 ∼ 2% 以内）远小于自屏蔽校正，后者对于主要的中子弹性散射引起的损伤约为 -11.3%，对于总位移损伤约为 -10.4%。