Physical criteria of the reliability of data on the photodisintegration of the 89Y nucleusстатья
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Дата последнего поиска статьи во внешних источниках: 17 октября 2017 г.
Аннотация:Experimental photonuclear reaction cross sections obtained in experiments using quasimonoenergetic annihilation, monoenergetic tagged photons, and bremsstrahlung γ-radiation are analyzed using physical criteria for the reliability of data on the 89Y nucleus. It is found that the reliability of data on the cross sections of partial reactions (γ, 1n) and (γ, 2n), obtained by means of photoneutron multiplicity sorting, is highly doubtful. Reliable cross sections of reactions (γ, 1n) and (γ, 2n) are obtained using the experimental-theoretical method (ETM) for evaluating using both experimental cross sections of neutron yield reaction
σexp(γ, xn) that are free of neutron multiplicity problems, and theoretically calculated ratios of the cross sections of definite (i) partial reactions to cross section σtheor(γ, xn). It is shown that the evaluated cross sections differ noticeably from the experimental data.