Photoneutron Reactions $^{181}\rm{Ta}(γ,\textit{x}n; \textit{x} = 1 ÷8)^{181-\textit{x}}\rm{Ta}$ AT $E_{\rm{γmax}}$ = 80 $÷$ 95 MeV

Isomeric Ratio of the $^{181}\rm{Ta}(γ,3n)^{178m,g}\rm{Ta}$ Reaction Products at Energy $E_{\rm{γmax}}$ up to 95 MeV

“…These figures also show the earlier results of our study [25] for the considered reaction (at E γmax = 80-95 MeV). Within the limits of experimental errors, the data of this work and from [25] are in good agreement.…”

“…The data from [24,28], measured at the same γ-quanta energy, differ significantly from each other. The results from [27] and [25] in the energy ranges of 22-32 and 80-95 MeV, respectively, show close values of the isomeric ratio.…”

“…W(E, E γmax )dE is the sum of bremsstrahlung quanta in the energy range from the reaction threshold E th up to E γmax , t irr , t cool and t meas are the irradiation time, cooling time and measurement time, respectively. In more detail, all the calculation procedures required to determine σ(E γmax ) are described in [25,29,34].…”

“…As for the study of the photodisintegration of tantalum at higher energies of bremsstrahlung γ-quanta, the results for E γmax = 55 MeV in the form of weighted average yields and at E γmax = 67.7 MeV in the form of a relative yield are presented in [24] and [12], respectively. In [25], experimental values of the total bremsstrahlung flux-averaged cross-sections σ(E γmax ) were obtained for photoneutron reactions at 181 Ta with emission of up to 8 neutrons at E γmax = 80-95 MeV and comparison was made with the calculations using the Talys1.9 code with default parameters.…”

“…From the data of work [12] at E γmax = 67.7 MeV, it is possible to obtain an estimated value of d(E γmax ) equal to 0.28 ± 0.08. In [25], experimental values of the isomeric ratio were found in the energy range E γmax = 80-95 MeV and the calculation was performed using the Talys1.9 code with default parameters. The comparison showed the excess of the calculated values over the experimental ones by two times.…”