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快中子核反应数据，不论对反应堆和聚变堆的设计，还是对核反应机制和核结构的研究及其理论的发展均有着重要的意义．由于屏栅电离室的诸多特点，被用于快中子核反应截面、能谱及双微分截面的测量．作为系统研究的一部分，利用屏栅电离室在北京大学４．５ＭＶ静电加速器上和在４～７ＭｅＶ能区内，对４０Ｃａ、６４Ｚｎ、５８Ｎｉ、５４Ｆｅ、３９Ｋ的（ｎ，α）反应进行了成功的测量，并对５８Ｎｉ的（ｎ，ｐ）反应进行了初步的测量．实验给出了反应中出射粒子的微分能谱、角分布和反应截面．从测量结果来看，在所测能区内，角分布大致是９０°对称的，说明在此能区复合核反应机制起主要作用．
Fast neutron nuclear reaction data, both for reactor and fusion reactor design, nuclear reaction mechanism and nuclear structure of the research and development of its theory are of great significance. Due to the many features of the screen ionization chamber, it is used for the measurement of fast neutron nuclear reaction cross section, energy spectrum and double differential cross section. As part of the systematic study, the (n, α) reactions of 40Ca, 64Zn, 58Ni, 54Fe and 39K were successfully performed on a 4.5MV electrostatic accelerator at Peking University and in the energy range of 4-7MeV using a screen grid ionization chamber. The initial measurements of the (n, p) reaction of 58Ni were carried out. The experiment gives the differential energy spectrum, angular distribution and cross section of the exiting particles in the reaction. From the measurement results, the angular distribution is roughly 90 ° symmetrical in the measured energy range, indicating that the nuclear reaction mechanism in this energy region plays a major role.