论文标题
$ {^{27} \！\ rm {al}}}（γ，\ textit {x}）^{24} \ rm {na} $ y多粒子反应$ e _ {
Cross-sections for the ${^{27}\!\rm{Al}}(γ,\textit{x})^{24}\rm{Na}$ multiparticle reaction at $E_{\rm{γmax}}$ = 40 $÷$ 95 MeV
论文作者
论文摘要
bremsstrahung磁通横截面$ \ langle {σ（e _ {\ rm {γmax}}）} \ rangle $和每个等效光子的跨区域$ \ langle {σ（e _ {\ rm {γmax}}）_ {\ rm {q}}}} \ rangle $是针对Photonucleartile Multipartile Reaction $^{27} \！{27} \！ {^{3} \ rm {he}} + pd + 2pn）^{24} \ rm {na} $在bremsstrahlung端点能量范围从40 MEV到95 MEV。使用NSC KIPT电子线性加速器LUE-40的光束使用$γ$激活技术进行实验。用程序Geant4计算了Bremsstrahlung量子通量，此外，还通过$^{100} \ rm {Mo {Mo}（γ，n）^{99} \ rm {mo {mo} $反应来监测。使用默认选项的TALYS1.9代码计算了跨段$σ（e）$。测得的平均横截面$ \ langle {σ（e _ {\ rm {γmax}}）}} \ rangle $和$ \ langle {σ（e _ {\ rm {\ rm {γmax}}}}）理论结果。已经发现实验结果与其他实验室的数据非常吻合。考虑到$ \ langle {σ（e _ {\ rm {γmax}}）}} \ rangle $和$ \ langle {σ（e__ _ {\ rm {\ rm {γmax}}} _ { $^{27} \！\ rm {al}（γ，\ textIt {x}）^{24} \ rm {na} $反应，出现三个$^{27} \！\！\ rm {al} $ potoDisignegration Channels。本文还讨论了使用$^{27} \！\ rm {al}（γ，\ textit {x}）^{24} \ rm {na} $反应以监视Bremsstrahlung $γ$γ$ Quantum-Quantum-Quantum-Quantum-Quantum flux在30 MEV以上的光子能量中。
The bremsstrahlung flux-averaged cross-sections $\langle{σ(E_{\rm{γmax}})}\rangle$ and the cross-sections per equivalent photon $\langle{σ(E_{\rm{γmax}})_{\rm{Q}}}\rangle$ were measured for the photonuclear multiparticle reaction $^{27}\!\rm{Al}(γ,\textit{x}; \textit{x} = {^{3}\rm{He}} + pd + 2pn)^{24}\rm{Na}$ at bremsstrahlung end-point energies ranging from 40 MeV to 95 MeV. The experiments were performed using the beam from the NSC KIPT electron linear accelerator LUE-40 with the use of the $γ$-activation technique. The bremsstrahlung quantum flux was calculated with the program GEANT4 and, in addition, was monitored by means of the $^{100}\rm{Mo}(γ,n)^{99}\rm{Mo}$ reaction. The cross-sections $σ(E)$ were computed using the TALYS1.9 code with the default options. The measured average cross-sections $\langle{σ(E_{\rm{γmax}})}\rangle$ and $\langle{σ(E_{\rm{γmax}})_{\rm{Q}}}\rangle$ have appeared to be higher by factors of 2.0 to 2.4 than the theoretical results. The experimental results have been found to be in good agreement with the data of other laboratories. Consideration is given to special features of calculation of $\langle{σ(E_{\rm{γmax}})}\rangle$ and $\langle{σ(E_{\rm{γmax}})_{\rm{Q}}}\rangle$ for the $^{27}\!\rm{Al}(γ,\textit{x})^{24}\rm{Na}$ reaction, with occurrence of three $^{27}\!\rm{Al}$ photodisintegration channels. The paper also discusses the possibility of using the $^{27}\!\rm{Al}(γ,\textit{x})^{24}\rm{Na}$ reaction for monitoring the bremsstrahlung $γ$-quantum flux in the photon energy region above 30 MeV.
