The bremsstrahlung flux-averaged cross-sections \(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \) and the cross-sections per equivalent photon \(\langle {\sigma (E_{{\gamma \mathrm{max}}})_{\mathrm{Q}}}\rangle \) were measured for the photonuclear multiparticle reaction \(^{27}\!\mathrm{Al}(\gamma ,\textit{x}; \textit{x} = {^{3}\mathrm{He}} + pd + 2pn)^{24}\mathrm{Na}\) at bremsstrahlung end-point energies ranging from 35 to 95 MeV. The experiments were performed using the beam from the NSC KIPT electron linear accelerator LUE-40 with the use of the \(\gamma \)-activation technique. The bremsstrahlung quantum flux was calculated with the program GEANT4.9.2 and, in addition, was monitored by means of the \(^{100}\mathrm{Mo}(\gamma ,n)^{99}\mathrm{Mo}\) reaction. The cross-sections \(\sigma (E)\) were computed using the TALYS1.9 code with the default options. The measured average cross-sections \(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \) and \(\langle {\sigma (E_{{\gamma \mathrm{max}}})_{\mathrm{Q}}}\rangle \) have appeared to be higher by factors of 2.0–2.4 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 \(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \) and \(\langle {\sigma (E_{{\gamma \mathrm{max}}})_{\mathrm{Q}}}\rangle \) for the \(^{27}\!\mathrm{Al}(\gamma ,\textit{x})^{24}\mathrm{Na}\) reaction, with occurrence of three \(^{27}\!\mathrm{Al}\) photodisintegration channels.

轫致辐射通量平均横截面\(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \)和每个等效光子的横截面\(\langle {\sigma ( E_{{\gamma \mathrm{max}}})_{\mathrm{Q}}}\rangle \)测量了光核多粒子反应\(^{27}\!\mathrm{Al}(\gamma , \textit{x}; \textit{x} = {^{3}\mathrm{He}} + pd + 2pn)^{24}\mathrm{Na}\)在韧致辐射终点能量范围从 35 到 95兆伏。实验是使用来自 NSC KIPT 电子直线加速器 LUE-40 的光束并使用\(\gamma \)激活技术进行的。轫致辐射量子通量用程序 GEANT4.9.2 计算，此外，还通过\(^{100}\mathrm{Mo}(\gamma ,n)^{99}\mathrm{Mo}\)反应。横截面\(\sigma (E)\)使用带有默认选项的 TALYS1.9 代码计算。测得的平均横截面\(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \)和\(\langle {\sigma (E_{{\gamma \mathrm{max }}})_{\mathrm{Q}}}\rangle \)似乎比理论结果高 2.0-2.4 倍。已发现实验结果与其他实验室的数据吻合良好。考虑了\(\langle {\sigma (E_{{\gamma \mathrm{max}}})}\rangle \)和\(\langle {\sigma (E_{{\gamma \ mathrm{max}}})_{\mathrm{Q}}}\rangle \)对于\(^{27}\!\mathrm{Al}(\gamma ,\textit{x})^{24}\mathrm{Na}\)反应，出现三个\(^{27}\! \mathrm{Al}\)光分解通道。