DETERMINATION OF NEUTRON RESONANCE PARAMETERS OF Sm-149 IN ENERGY RANGE 15-300 eV

Authors & Affiliations

Georgiev G.P.¹, Zamyatnin Yu.S.¹, Pikel'ner L.B.¹, Fajkov-Stanchik H.¹, Grigor'ev Yu.V.², Muradyan G.V.³, Yaneva N.V.^4
1Joint Institute of Nuclear Research, Dubna, Russia
²Institute of Physics and Power Engineering, Obninsk, Russia
³Russian Scientific Center “Kurchatov’s Institute”, Moscow, Russia
⁴Institute of Nuclear Research and Nuclear Energy, Sofia, Bulgaria

Abstract

The neutron radiative capture measurements for enriched isotope Sm are performed at the neutron spectrometer of LNPh JINR by a gamma-rays multiplicity method using the multisectional 4p-detector “Romashka” placed on the 500 m flight path of the IBR-30 booster. The gamma-multiplicity spectra of resolved resonances were obtained in the energy range from 15 eV to 300 eV. The mean gamma-rays multiplicity was determined the energy, the average multiplicity, the spin and the radiative width for 91 resonances.

Keywords
enriched isotope Sm, neutron spectrometer of LNPh JINR, multisectional 4p-detector “Romashka”, the gamma-multiplicity spectra of resolved resonances

Article Text (PDF, in Russian)

References

UDC 621.039.51

Problems of Atomic Science and Technology. Series: Nuclear Constants", issue 1, 1999