تقرير
Production of ${^{180\rm{m}}}$Hf in photoproton reaction ${^{181}}$Ta$(\gamma,p)$ at energy $E_{\rm{\gamma max}}$ = 35-95 MeV
| العنوان: | Production of ${^{180\rm{m}}}$Hf in photoproton reaction ${^{181}}$Ta$(\gamma,p)$ at energy $E_{\rm{\gamma max}}$ = 35-95 MeV |
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| المؤلفون: | Timchenko, I. S., Deiev, O. S., Olejnik, S. N., Potin, S. M., Korda, L. P., Kushnir, V. A., Mytrochenko, V. V., Perezhogin, S. A., Herzáň, A. |
| سنة النشر: | 2023 |
| المجموعة: | Nuclear Experiment |
| مصطلحات موضوعية: | Nuclear Experiment |
| الوصف: | The production of the $^{180\rm{m}}\rm{Hf}$ nuclei in the photoproton reaction ${^{181}\rm{Ta}}(\gamma,p)$ was studied at end-point bremsstrahlung energies $E_{\rm{\gamma max}}$ = 35-95 MeV. The experiment was performed at the electron linear accelerator LUE-40 NSC KIPT with the use of the $\gamma$ activation and off-line $\gamma$-ray spectroscopy. The experimental values of the bremsstrahlung flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{m}}$ for the ${^{181}\rm{Ta}}(\gamma,p)^{180\rm{m}}\rm{Hf}$ reaction were determined, and at $E_{\rm{\gamma max}} > 55$ MeV obtained for the first time. The measured values, also as the literature data, are significantly exceed the theoretical flux-averaged cross-sections $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{th}}$. The $\langle{\sigma(E_{\rm{\gamma max}})}\rangle_{\rm{th}}$ values were calculated using the cross-section $\sigma(E)$ computed with the TALYS1.95 code for six different level density models. A comparative analysis of the calculated total cross-sections for the reactions ${^{181}\rm{Ta}}(\gamma,p)^{180}\rm{Hf}$ and ${^{181}\rm{Ta}}(\gamma,n)^{180}\rm{Ta}$ was performed. It was shown that the photoproton $(\gamma,p)$ to photoneutron $(\gamma,n)$ strength ratio is consistent with the estimates based on the isospin selection rules and the value from the $(e,e'p)$ experiment. Comment: 9 pages, 4 figures, 2 tables |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2308.10339Test |
| رقم الانضمام: | edsarx.2308.10339 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |