Gamma-ray energies from the decay of 152Eu

Abstract

Gamma-ray energies of ¹⁵²Eu were measured with the uncertainties of 1.1–7.3 eV in the region of 290–720 keV using Ge spectrometers. To determine the 719 keV γ-ray energy of ¹⁵²Eu, we measured the 125 and 592 keV cascade γ-ray energies of ¹⁸⁵Os which provide the 717 keV cross-over γ-ray energy. Seven γ-ray energies of ¹⁵²Eu in the region of 770–1400 keV were obtained from the sum of the cascade γ-ray energies.