Nuclear data sheets for A = 132

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

“…The 5 − 1 state at 2054 keV was previously reported to decay to the 4 + 1 state through a transition of 383 keV [9]. This transition was observed and confirmed to have an intensity consistent with the literature intensity with some reduction in the uncertainty.…”

“…As a conventional coincidence condition was imposed in the triggering electronics, the experiment provided at most limited sensitivity to coincidences between γ -ray transitions populating and depopulating levels with lifetimes greater than a few microseconds. Thus, coincidences between transitions deexciting the 145-ns isomeric state at 1775 keV [9] and transitions feeding this level could be observed, but no coincidence events were registered between transitions below and above the 1925 keV state (T 1/2 = 28 µs).…”

“…These intensities yield a huge value for the corresponding B(E3) of the 3 − → 0 + 1 transition. From the reported literature values [9], the ratio B(E1; 3 − → 2 + )/B(E3; 3 − → 0 + ) gives 3 × 10 −8 . Assuming a B(E1; 3 − → 2 + ) value of ∼10 −4 W.u., which is typical for transitions of this kind in this region [11], the B(E3; 3 − → 0 + ) would have been ∼10 4 W.u., two orders of magnitude larger than any other known value.…”

“…A 3 − 1 level was previously reported at 2281 keV [8,9]. The placement was based primarily on three transitions, 610 keV with intensity 20(4), 1306 keV with intensity 10(2), and 2280 keV with intensity 10(2), from this level to the 4 + 1 , 2 + 1 , and 0 + 1 states, respectively.…”

Half-life and magnetic moment of the first excited state inI132

“…Based on these observations and considerations, we safely conclude that the half-life of the first excited state in 132 I is 1.120 ± 0.015 ns. The transition probability, B(M1), was deduced to be 0.024 W.u., from the present half-life value, the internal conversion coefficient α = 5.62, calculated by BrIcc [15], and the fact that the transition is pure M1 [16]. This small B(M1) value may indicate a large M1 retardation for this state.…”