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Nanosecond lifetime measurements of Iπ¼9/2- intrinsic excited states and low-lying B(E1)strengths in 183Re using combined HPGe-LaBr3 coincidence spectroscopy

Gurgi, Laila, Regan, Patrick, Daniel, T, Podolyak, Zsolt, Bruce, AM, Mason, PJR, Mǎrginean, N, Mǎrginean, R, Werner, V, Alharbi, T, Alkhomashi, N, Bajoga, AD, Britton, R, Cǎta-Danil, I, Carroll, RJ, Deleanu, D, Bucurescu, D, Florea, N, Gheorghe, I, Ghita, DG, Lice, R, Mihai, C, Mulholland, KF, Negret, A, Olacel, A, Roberts, OJ, Sava, T, Söderström, P-A, Stroe, L, Suvaila, R, Toma, S, Wilson, E and Wood, RT (2016) Nanosecond lifetime measurements of Iπ¼9/2- intrinsic excited states and low-lying B(E1)strengths in 183Re using combined HPGe-LaBr3 coincidence spectroscopy Radiation Physics and Chemistry, 137. pp. 7-11.

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Abstract

This paper presents precision measurements of electromagnetic decay probabilities associated with electric dipole transitions in the prolate-deformed nucleus 183Re. The nucleus of interest was formed using the fusion evaporation reaction 180Hf(7Li,4n)183Re at a beam energy of 30 MeV at the tandem accelerator at the HH-IFIN Institute, Bucharest Romania. Coincident decay gamma rays from near-yrast cascades were detected using the combined HPGe-LaBr3 detector array ROSPHERE. The time differences between cascade gamma rays were measured using the LaBr3 detectors to determine the half-lives of the two lowest lying spin-parity 9/2- states at excitation energies of 496 and 617 keV to be 5.65(5) and 2.08(3) ns respectively. The deduced E1 transition rates from these two states are discussed in terms of the K-hindrance between the low-lying structures in this prolate-deformed nucleus.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Gurgi, Lailal.a.gurgi@surrey.ac.ukUNSPECIFIED
Regan, PatrickP.Regan@surrey.ac.ukUNSPECIFIED
Daniel, TUNSPECIFIEDUNSPECIFIED
Podolyak, ZsoltZ.Podolyak@surrey.ac.ukUNSPECIFIED
Bruce, AMUNSPECIFIEDUNSPECIFIED
Mason, PJRUNSPECIFIEDUNSPECIFIED
Mǎrginean, NUNSPECIFIEDUNSPECIFIED
Mǎrginean, RUNSPECIFIEDUNSPECIFIED
Werner, VUNSPECIFIEDUNSPECIFIED
Alharbi, TUNSPECIFIEDUNSPECIFIED
Alkhomashi, NUNSPECIFIEDUNSPECIFIED
Bajoga, ADUNSPECIFIEDUNSPECIFIED
Britton, RUNSPECIFIEDUNSPECIFIED
Cǎta-Danil, IUNSPECIFIEDUNSPECIFIED
Carroll, RJUNSPECIFIEDUNSPECIFIED
Deleanu, DUNSPECIFIEDUNSPECIFIED
Bucurescu, DUNSPECIFIEDUNSPECIFIED
Florea, NUNSPECIFIEDUNSPECIFIED
Gheorghe, IUNSPECIFIEDUNSPECIFIED
Ghita, DGUNSPECIFIEDUNSPECIFIED
Lice, RUNSPECIFIEDUNSPECIFIED
Mihai, CUNSPECIFIEDUNSPECIFIED
Mulholland, KFUNSPECIFIEDUNSPECIFIED
Negret, AUNSPECIFIEDUNSPECIFIED
Olacel, AUNSPECIFIEDUNSPECIFIED
Roberts, OJUNSPECIFIEDUNSPECIFIED
Sava, TUNSPECIFIEDUNSPECIFIED
Söderström, P-AUNSPECIFIEDUNSPECIFIED
Stroe, LUNSPECIFIEDUNSPECIFIED
Suvaila, RUNSPECIFIEDUNSPECIFIED
Toma, SUNSPECIFIEDUNSPECIFIED
Wilson, EUNSPECIFIEDUNSPECIFIED
Wood, RTUNSPECIFIEDUNSPECIFIED
Date : 13 May 2016
Identification Number : https://doi.org/10.1016/j.radphyschem.2016.05.009
Copyright Disclaimer : Copyright 2016 Published by Elsevier Ltd. All rights reserved.
Uncontrolled Keywords : Coincidence gamma-ray spectroscopy Nuclear structure physics Electromagnetic transition rates LaBr3(Ce) scintillation detectors
Additional Information : Full text not available from this repository
Depositing User : Melanie Hughes
Date Deposited : 13 Jun 2017 09:07
Last Modified : 13 Jun 2017 09:48
URI: http://epubs.surrey.ac.uk/id/eprint/841350

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