The cross-sections of the $(\gamma ,n)$ reaction of various Cd and Sn isotopes, including the $p$ nuclei ${}^{106,108}\mathrm{Cd}$ and ${}^{112,114}\mathrm{Sn}$, were measured using bremsstrahlung photons of 14 MeV on Cd and Sn targets. The thick-foil activation technique was applied, and the contribution from the $(n,\gamma )$ reaction channel was taken into account. The results are new, providing an effective cross-section for ${}^{106}\mathrm{Cd}(\gamma ,n)$ and ${}^{108}\mathrm{Cd}(\gamma ,n)$ reactions as $42\pm 7$ and $36\pm 5\mathrm{mb}$, respectively. The ${}^{112,114}\mathrm{Sn}(\gamma ,n)$ cross-sections were $34\pm 8$ and $44\pm 11\mathrm{mb}$, and the cross-sections of ${}^{118,124}\mathrm{Sn}(\gamma ,n)$ were measured as $1.1\pm 0.4$ and $42\pm 9\mathrm{mb}$, while the ${}^{114}\mathrm{Cd}(n,\gamma )$ cross-section was $58\pm 9\mathrm{mb}$. The experimental data were compared with talys 2.0 simulations to validate phenomenological and semimicroscopic models, as well as with evaluated data from major nuclear data libraries. The phenomenological SMLO $\gamma$ strength reproduced the experimental cross-sections reasonably well, while the semimicroscopic QRPA strength functions (BSk7, $\mathrm{Skyrme}+\mathrm{HFB}$, D1M) showed comparable predictive capability and, in several cases, a closer agreement with the evaluated data. The $\mathrm{QRPA}+\mathrm{D}1\mathrm{M}$ parametrization, including pion-resonance corrections, yielded the best reproduction of the experimental results, with cross-sections of $41\pm 5$ and $38\pm 5\mathrm{mb}$ for the ${}^{106}\mathrm{Cd}(\gamma ,n)$ and ${}^{108}\mathrm{Cd}(\gamma ,n)$ reactions, respectively. For the Sn isotopes, the calculated values were $38\pm 8\mathrm{mb}$ for ${}^{112}\mathrm{Sn}, 43\pm 7\mathrm{mb}$ for ${}^{114}\mathrm{Sn}$, and $42\pm 9\mathrm{mb}$ for ${}^{124}\mathrm{Sn}$, while for ${}^{118}\mathrm{Sn}$ the ${}^{118}\mathrm{Sn}(\gamma ,n){}^{117m}\mathrm{Sn}$ reaction was found to be much lower ($1.5\pm 0.4\mathrm{mb}$). Effective cross-sections for natural Cd and Sn were deduced as $41\pm 8$ and $43\pm 7\mathrm{mb}$, respectively, at a mean energy of $11\pm 5\mathrm{MeV}$ for ground-state transitions. For isomeric states, the measured cross-sections were about an order of magnitude lower. Overall, the combination of SMLO and D1M-QRPA strength functions with the constant temperature model level density model provides the most consistent description across $(\gamma ,n)$ and $(n,\gamma )$ channels.

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• Nuclear astrophysics
• Nuclear reactions
• Photonuclear reactions
• Radiative capture
• 90 ≤ A ≤ 149
• Nuclear data analysis & compilation