TY - JOUR
T1 - Properties of 152Gd collective states
AU - Adam, J.
AU - Dobeš, J.
AU - Honusek, M.
AU - Kalinnikov, V. G.
AU - Mrázek, J.
AU - Pronskikh, V. S.
AU - Čaloun, P.
AU - Lebedev, N. A.
AU - Stegailov, V. I.
AU - Tsoupko-Sitnikov, V. M.
PY - 2003/12
Y1 - 2003/12
N2 - The decays of 152Tb (T1/2 = 17.5 h) and 152Gd excited states have been investigated by the analysis of γ-rays and γγ-coincidences measured with the use of high-resolution HPGe detectors. The source of 152Tb was prepared by chromatographic isolation followed by electromagnetic separation from a tantalum target irradiated by an internal proton beam of the LNP JINR phasotron. New and more precise data on the γ-transitions and excited states of 152Gd are reported. Using previously published data on internal-conversion electrons many transition multipolarities are suggested, some of them with E0 admixture. The EC/β+ ratio was found for a number of low-lying levels, for most of the levels their spins, parities, and log ft are given. The excited levels of 152Gd were deduced from the analysis of γγ-coincidences. The experimental level energies and reduced transition probabilities are compared with the calculations by phenomenological formulae as well as in the frameworks of theoretical models.
AB - The decays of 152Tb (T1/2 = 17.5 h) and 152Gd excited states have been investigated by the analysis of γ-rays and γγ-coincidences measured with the use of high-resolution HPGe detectors. The source of 152Tb was prepared by chromatographic isolation followed by electromagnetic separation from a tantalum target irradiated by an internal proton beam of the LNP JINR phasotron. New and more precise data on the γ-transitions and excited states of 152Gd are reported. Using previously published data on internal-conversion electrons many transition multipolarities are suggested, some of them with E0 admixture. The EC/β+ ratio was found for a number of low-lying levels, for most of the levels their spins, parities, and log ft are given. The excited levels of 152Gd were deduced from the analysis of γγ-coincidences. The experimental level energies and reduced transition probabilities are compared with the calculations by phenomenological formulae as well as in the frameworks of theoretical models.
UR - https://www.scopus.com/pages/publications/0346338190
U2 - 10.1140/epja/i2002-10167-8
DO - 10.1140/epja/i2002-10167-8
M3 - Article
AN - SCOPUS:0346338190
SN - 1434-6001
VL - 18
SP - 605
EP - 626
JO - European Physical Journal A
JF - European Physical Journal A
IS - 4
ER -