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, Matousek, 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 & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 849. pp. 112-118.

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Abstract

A new technique of elucidating $\beta$-decay schemes of isotopes with large density of states at low excitation energies 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 has been demonstrated on 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 $\gamma$ rays energies to be determined with a precision of a few tens of electronvolts, which was sufficient for the analysis of the Rydberg-Ritz combinations in the level scheme. The timestamped structure of the data was used for unambiguous separation of $\gamma$ rays arising from the decay of 183Hg from those due to the daughter decays.

Item Type: Article
Uncontrolled Keywords: Broad Energy Germanium detector, gamma-Ray spectroscopy, Level scheme
Depositing User: Symplectic Admin
Date Deposited: 01 Jul 2016 14:58
Last Modified: 11 Oct 2023 20:39
DOI: 10.1016/j.nima.2016.12.048
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3001973
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