Cross-sections for photonuclear reactions ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb in the end-point bremsstrahlung energies 36…91 MeV

• Дата: 2020
• Автори: Vodin, A.N., Deiev, O.S., Timchenko, I.S., Olejnik, S.N., Kachan, A.S., Korda, L.P., Kuplennikov, E.L., Kushnir, V.A., Mytrochenko, V.V., Perezhogin, S.A., Pilipenko, N.N., Trubnikov, V.S.
• Формат: Стаття
• Мова: English
• Опубліковано: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2020
• Назва видання: Вопросы атомной науки и техники
• Теми: Experimental methods and processing of data
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/194538
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Cross-sections for photonuclear reactions ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb in the end-point bremsstrahlung energies 36…91 MeV / A.N. Vodin, O.S. Deiev, I.S. Timchenko, S.N. Olejnik, A.S. Kachan, L.P. Korda, E.L. Kuplennikov, V.A. Kushnir, V.V. Mytrochenko, S.A. Perezhogin, N.N. Pilipenko, V.S. Trubnikov // Problems of atomic science and tecnology. — 2020. — № 3. — С. 148-153. — Бібліогр.: 18 назв. — англ.

The flux-weighted averaged over the energy range of bremsstrahlung spectrum from reaction threshold up to the maximum energy of γ-ray cross-sections <σ (E)> of the ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb photonuclear reactions were determined by the gamma-activation method within the end-point bremsstrahlung energies Еγmax = 36…91 MeV. Activation of ⁹³Nb targets has been done by a bremsstrahlung flux using an electron beam at the linear accelerator LUE-40 at RDC “Accelerator” NSC KIPT. The γ-ray spectra of irradiated targets were registered using the HPGe detector with an energy resolution of 1.8 keV for the 1332 keV line ⁶⁰Co. To control the bremsstrahlung flux we used ⁿᵃᵗMo witness-targets and a reaction cross-section of ¹⁰⁰ Mo(γ,n)⁹⁹Mo. Obtained experimental cross-sections <σ(E)> of the studied reactions are in good agreement with the theoretical values calculated within TALYS 1.9 code and the results of other authors. The averaged cross-sections <σ(E)> of the ⁹³Nb(γ,n)⁹²ᵐNb and ⁹³Nb(γ,n)⁹²ᵗNb reactions in the energy range 35…45 MeV and > 70 MeV were obtained for the first time.