论文标题
中子诱导的$α$生产反应的鉴定横截面测量值跨中子能量范围为6.2至76 MeV
Differential cross-section measurements for neutron-induced $α$ production reactions on carbon across neutron energy range of 6.2 to 76 MeV
论文作者
论文摘要
在中国散布中子源的背面N White中子中子源的30个离散中子能量水平范围从6.2到76 MeV的30个离散的中子能级确定，中子诱导的$α$生产的角度分化的横截面是在30个离散的中子能量水平上确定的。在实验室框架中，利用轻型粒子检测器阵列中的$ΔE-E $望远镜，跨越了从24.5°到155.5°的角度测量，获得了$^{12} C（n，α）x $反应横截面。这些实验发现与先前的结果表现出很强的一致性，并与TALYS，GEANT4和ENDF/B-VIII.0数据库等代码的理论估计进行了基准测试。值得注意的是，在13.7、22.4、29.5和61.8 MEV的中子能量上观察到了独特的类似共振的特征，标记了它们在文献中的首次识别。
Angle-differential cross sections for neutron-induced $α$ production in carbon were determined at thirty discrete neutron energy levels ranging from 6.2 to 76 MeV at the Back-n white neutron source of the China Spallation Neutron Source. Utilizing the $ΔE-E$ telescopes within the Light-charged Particle Detector Array spanning angular measurements from 24.5°to 155.5° in the laboratory frame, the $^{12}C(n,α)x$ reaction cross sections were obtained. These experimental findings exhibit a strong concordance with prior results and have been benchmarked against theoretical estimates from codes such as TALYS, Geant4, and assessments from the ENDF/B-VIII.0 database. Remarkably, distinct resonance-like features were observed at neutron energies of 13.7, 22.4, 29.5, and 61.8 MeV, marking their first-time identification in the literature.Furthermore, a comparative analysis involving the theoretical Distorted Wave Born Approximation was conducted.
