Lifetime measurement of the ((11/2)−) isomer in 125Cs
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The lifetime of the ((11/2)−) state at 267keV in 125Cs was measured. A Ge detector with the transistor reset preamplifier(TRP Ge) was used to measure delayed γ-rays under an intense prompt background. The B(M2) value deduced from the lifetime was found to be consistent with the Weisskopf estimate.
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