Study of the excitation of 11/2– isomeric state of the nucleus 139Се in reaction (γ, n)m in the giant E1-resonance region

The isomeric yield ratio Ym/Yg is measured in 140Се(γ, n)139m,gСе reaction in 11 - 18 MeV energy range with the step of 0.5 MeV. Using inverse matrix method the experimental cross section of 140Се(γ, n)139m,gСе reaction is estimated. Obtained excitation cross section of the isomeric state of the nucleus 139Се is comparable with the results of the theoretical calculations performed with the TALYS-1.6 program suite

A study of isomeric yield ratios in the 124Te(γ,n)123mTe reaction in the giant E1-resonance region

Section II. Experimental Investigations of Nuclear Reactions Mechanism

Studies of dependence of isomeric yield ratios on the gamma quanta energy in the 140Ce(γ,n)139m,gCe reaction

Section II. Experimental Investigations of Nuclear Reactions Mechanism

Analysis of photoneutron cross section accuracy obtained at quasimonochromatic gamma-beams

Using gamma-spectroscopic methods, comparative measurements of (γ, n) reaction yields on the isotopes 140Се and 142Се were carried out in the energy region of 9 - 18 MeV using gamma-quanta. It was shown, that for the isotopes of Cerium using the quasimonochromatic beams of photons [1] the error of the measurement of the (γ, n) reaction cross section due to the contribution of the (γ, 2n) reaction did not exceed 2%