Author/Authors :
C. B. Zamboni، نويسنده , , J. A. G. Medeiros، نويسنده , , A. L. Lapolli، نويسنده , , F. A. Genezini، نويسنده , , S. P. Camargo، نويسنده , , M. T. F. da Cruz، نويسنده , , J. Y. Zevallos-Ch?vez، نويسنده ,
Abstract :
The γ-ray spectrum of 139La following the β− decay of 139Ba has been studied using both singles and γγ coincidence spectroscopy techniques. The energies and intensities of 30 γ-transitions have been determined, which include three new transitions placed in the level scheme. Two new levels at 1524.6 and 1900.3 keV excitation energies are proposed and a number of γ-transitions have been confirmed. On the basis of these results a precise decay scheme is proposed.
