Application of the Broad Energy Germanium detector: A technique for elucidating β-decay schemes which involve daughter nuclei with very low energy excited states

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• 作者：M. Venhart^a ; ^{martin.venhart@savba.sk} ; J.L. Wood^b ; A.J. Boston^a ; T.E. Cocolios^c ; ^d ; L.J. Harkness-Brennan^e ; R.-D. Herzberg^e ; D.T. Joss^e ; D.S. Judson^e ; J. Kliman^a ; V. Matou&scaron ; ek^a ; &Scaron ; . Motyčá ; k^f ; R.D. Page^e ; A. Patel^e ; K. Petrí ; k^a ; M. Sedlá ; k^a ; M. Veselský ; ^a
• 关键词：Broad Energy Germanium detector ; γ-Ray spectroscopy ; Level scheme
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：2017
• 出版时间：21 March 2017
• 年：2017
• 卷：849
• 期：Complete
• 页码：112-118
• 全文大小：1516 K
• 卷排序：849

文摘

A technique for elucidating β-decay schemes of isotopes with a large density of states at low excitation energy has been developed, in which a Broad Energy Germanium (BEGe) detector is used in conjunction with coaxial hyper-pure germanium detectors. The power of this technique is demonstrated using the example of 183Hg decay. Mass-separated samples of 183Hg were produced by a deposition of the low-energy radioactive-ion beam delivered by the ISOLDE facility at CERN. The excellent energy resolution of the BEGe detector allowed γ-ray energies to be determined with a precision of a few tens of eV, which was sufficient for the analysis of the Rydberg-Ritz combinations (in conjunction with γ-γ coincidences) in the level scheme. The timestamped structure of the data was used for unambiguous separation of γ rays arising from the decay of 183Hg from those due to the daughter decays.