부산대학교 도서관

The γ -ray strength function (γ SF) in 80Se is an important parameter to estimate the neutroncapture cross section of 79Se which is one of the long-lived fission products (LLFPs). Until now, the γ SF method was applied for 80Se only above the neutron-separation energy (Sn) and the evaluated 79Se(n,γ) cross section has an instability caused by the GSF below Sn. We studied the dipole-strength distribution of 80Se in a photon-scattering experiment using bremsstrahlung produced by an electron beam of an energy of 11.5MeV at the linear accelerator ELBE at HZDR. The present photoabsorption cross section of 80Se was combined with results of (γ, n) experiments and are compared with predictions usinmg the TALYS code. We also estimated the 79Se(n,γ) cross sections and compare them with TALYS predictionms and earlier work by other groups. [ABSTRACT FROM AUTHOR]