Cross-sections of photoneutron reaction ${}^{\mathrm{n}\mathrm{a}\mathrm{t}}$Mo($\gamma ,x$n)${}^{93\mathrm{m}}$Mo at the bremsstrahlung energy up to 95 MeV

The photoproduction of the ${}^{93\mathrm{m}}$Mo nucleus on natural molybdenum was studied using the electron beam of the LUE-40 linac RDC “Accelerator” NSC KIPT. Measurements were performed using the activation method and off-line $\gamma$-ray spectrometric technique. For the ${}^{\mathrm{n}\mathrm{a}\mathrm{t}}$Mo($\gamma ,x$n)${}^{93\mathrm{m}}$Mo reaction the experimental flux-averaged cross-section <$\sigma (E_{\gamma \mathrm{m}\mathrm{a}\mathrm{x}})$>_\rm m at the bremsstrahlung end-point energy range of 38–93 MeV was first time determined. The theoretical values of the yields $Y_{\mathrm{m},\mathrm{g}}(E_{\gamma \mathrm{m}\mathrm{a}\mathrm{x}})$ and flux-averaged cross-sections <$\sigma (E_{\gamma \mathrm{m}\mathrm{a}\mathrm{x}})$>${}_{\mathrm{m},\mathrm{g}}$ for the ${}^{\mathrm{n}\mathrm{a}\mathrm{t}}$Mo($\gamma ,x$n)${}^{93\mathrm{m},\mathrm{g}}$Mo reactions were calculated using the cross-sections $\sigma (E_{\gamma })$ from the TALYS1.96 code for different gamma strength functions and level density models. The comparison showed strong discrepancies between the experimental values and the theoretical results of <$\sigma (E_{\gamma \mathrm{m}\mathrm{a}\mathrm{x}})$>${}_m$.