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


Venhart, M, Wood, JL, Boston, AJ, Cocolios, TE, Harkness-Brennan, LJ, Herzberg, R-D ORCID: 0000-0001-9876-1518, Joss, DT ORCID: 0000-0001-5763-8767, Judson, DS, Kliman, J, Matoušek, V et al (show 6 more authors) (2017) Application of the Broad Energy Germanium detector: A technique for elucidating β -decay schemes which involve daughter nuclei with very low energy excited states. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 849. pp. 112-118.

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Abstract

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.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 07 Feb 2017 10:35
Last Modified: 19 Jan 2023 07:19
DOI: 10.1016/j.nima.2016.12.048
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3005590
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