Beta decay studies in the vicinity of 13250Sn82: Excited states in 13051Sb, 13052Te and 13252Te

γ-ray spectroscopy ofTe132through β decay of aSb132Hughes1, Zamfir2, Radford3 et al. 2005Phys. Rev. C181310View full textAdd to dashboardCite

“…A level 2191.93(22) keV is observed on the basis of one populating and one depopulating transition. The prior β-decay study [8] places a 138.5 keV transition, with intensity 7.0(20), tentatively depopulating a level at 3349 keV. Our coincidence data find a 138.05(8) keV transition with intensity 6.5(9) as depopulating a new level at 2192 keV.…”

“…[10]. Figure 2 highlights the levels observed below 2500 keV as deduced in this work, including a comparison with the previously reported β-decay level scheme [8]. Changes to the level scheme below 2400 keV are discussed in detail below.…”

“…[7]. Due to the high statistics, the lowest measurable transition intensity was reduced by more than an order of magnitude from the previous ∼0.5 γ rays per 100 decays [8] to ∼0.02 per 100 decays.…”

States inN=79142Eu populated in the decay of142Gd

“…9. The data were taken from the following sources: [35] for 13~ [363 for 132I and a34Cs, E37] for 136La and they were supplemented with information from the compilation of Lederer et al [31] when possible. For ~SSpr, the data were taken from E38] and the excitation energy of the 7-state was deduced to be 0.36___0.02 MeV.…”

Gamma-ray spectroscopy of short-lived fission products using the recoil separator ?Lohengrin?

“…First level in ~ compared to neighbouring isotopes. The Qp-value of 10 MeV is derived from [18] This branch probably feeds the 931.8 keV level in 96y, leading to a Q~-value of 9~ of: 4 200 _+ 300 keV. Assuming that this beta branch is nearly 100% of the total /~-activity, one obtains log ft,4.…”