Cross-sections of photoneutron reaction $^{ nat}$Mo($γ,x$n)$⁹³ᵐ$Mo at the bremsstrahlung energy up to 95 MeV

The photoproduction of the ⁹³ᵐMo 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 γ-ray spectrometric technique. For the ⁿᵃᵗMo(γ,xn)⁹³ᵐMo reaction the experimental flux-averaged cross-section <σ(Eγ max)>_ m at the bremsstrahlung end-point energy range of 38--93 MeV was first time determined. The theoretical values of the yields Ym,g(Eγ max) and flux-averaged cross-sections <σ(Eγ max)>m,g for the ⁿᵃᵗMo(γ,xn)93m,gMo reactions were calculated using the cross-sections σ(Eγ) 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 <σ(Eγ max)>ₘ.