\begin{document}$\langle{\sigma(E_{\rm{\gamma max}})}\rangle$\end{document} for the reactions \begin{document}${^{65}{\rm{Cu}}}(\gamma,n)^{64}{\rm{Cu}}$\end{document}, \begin{document}${^{63}{\rm{Cu}}}(\gamma,n)^{62}{\rm{Cu}}$\end{document}, \begin{document}${^{63}{\rm{Cu}}}(\gamma,2n)^{61}{\rm{Cu}}$\end{document} , and \begin{document}${^{63}{\rm{Cu}}}(\gamma,3n)^{60}{\rm{Cu}}$\end{document} have been measured within the bremsstrahlung end-point energy \begin{document}$E_{\rm{\gamma max}}$\end{document} range of 35–94 MeV. The experiments were performed with the electron beam from the NSC KIPT linear accelerator LUE-40 with the use of the activation and off-line γ-ray spectrometric techniques. Theoretical calculation of the flux-average cross-sections \begin{document}$\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{th}}$\end{document} was conducted using the cross-section \begin{document}$\sigma(E)$\end{document} values from the TALYS1.95 code, run with default options. It is shown that the experimental average cross-sections for the reactions \begin{document}${^{65}{\rm{Cu}}}(\gamma,n)^{64}{\rm{Cu}}$\end{document}, \begin{document}${^{63}{\rm{Cu}}}(\gamma,n)^{62}{\rm{Cu}}$\end{document}, and \begin{document}${^{63}{\rm{Cu}}}(\gamma,2n)^{61}{\rm{Cu}}$\end{document} are systematically higher than the theoretical estimates based on the TALYS1.95 code. The obtained \begin{document}$\langle{\sigma(E_{\rm{\gamma max}})}\rangle$\end{document}values supplement the data of different laboratories for the \begin{document}$(\gamma,n)$\end{document} and \begin{document}$(\gamma,2n)$\end{document} reactions of \begin{document}${^{63}{\rm{Cu}}}$\end{document} and \begin{document}${^{65}{\rm{Cu}}}$\end{document}. For the reaction \begin{document}${^{63}{\rm{Cu}}}(\gamma,3n)^{60}{\rm{Cu}}$\end{document}, the values of \begin{document}$\langle{\sigma(E_{\rm{\gamma max}})}\rangle$\end{document} were measured for the first time."> Cross-sections of photonuclear reactions <sup>65</sup>Cu(<i>γ</i>, n)<sup>64</sup>Cu and <sup>63</sup>Cu(<i>γ</i>, xn)<sup>63−x</sup>Cu in the energy range <i>E</i><sub><i>γ</i>max</sub> = 35–94 MeV -
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