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High-spin states of 218Th

O’Donnell, D, Page, R D, Grahn, T, Ali, F A, Auranen, K, Capponi, L, Carroll, R J, Chishti, M. M. R, Drummond, M C, Greenlees, P T , Henderson, J, Herzan, A, Jakobsson, U, Joss, D. T, Julin, R, Juutinen, S, Konki, J, Labiche, M, Leino, M, Mason, P. J. R, McPeake, C. G, Pakarinen, J, Papadakis, P, Partanen, J, Peura, P, Rahkila, P, Revill, J, Ruotsalainen, P, Sandzelius, M, Sarén, J, Sayği, B, Scholey, C, Simpson, J, Smith, J. F, Smolen, M, Sorri, J, Stolze, S, Sullivan, C. M, Thornthwaite, A, Uusitalo, J, Kumar, A and Srivastava, P C (2020) High-spin states of 218Th Journal of Physics G: Nuclear and Particle Physics, 47 (9), 095103.

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High-spin states in the N = 128 nucleus 218Th have been investigated following fusion–evaporation reactions, using the recoil-decay tagging technique. Due to the short-lived nature of the ground state of 218Th prompt γ rays have been correlated with the α decay of the daughter nucleus 214Ra. The level scheme representing the decay of excited states has been extended to (16+) with the observation of six previously unreported transitions. The observations are compared with the results of shell model calculations and within the context of the systematics of neighbouring nuclei.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
O’Donnell, D
Page, R D
Grahn, T
Ali, F A
Auranen, K
Capponi, L
Carroll, R J
Chishti, M. M.
Drummond, M C
Greenlees, P T
Henderson, J
Herzan, A
Jakobsson, U
Joss, D. T
Julin, R
Juutinen, S
Konki, J
Labiche, M
Leino, M
Mason, P. J. R
McPeake, C. G
Pakarinen, J
Papadakis, P
Partanen, J
Peura, P
Rahkila, P
Revill, J
Ruotsalainen, P
Sandzelius, M
Sarén, J
Sayği, B
Scholey, C
Simpson, J
Smith, J. F
Smolen, M
Sorri, J
Stolze, S
Sullivan, C. M
Thornthwaite, A
Uusitalo, J
Kumar, A
Srivastava, P C
Date : 4 August 2020
Funders : UK Science and Technology Facilities Council, EU 7th Framework Programme
DOI : 10.1088/1361-6471/aba16c
Grant Title : Academy of Finland Grant
Copyright Disclaimer : © 2020 The Author(s). Published by IOP Publishing Ltd
Projects : EU 7th Framework Programme ‘Integrating Activities— Transnational Access’, Project No.: 262010 (ENSAR), Finnish Centre of Excellence Programme2012-2017 (Nuclear andAcceleratorBased Physics Programme at JYFL).
Uncontrolled Keywords : γ-ray spectroscopy, α-decay, shell model, thorium, fusion–evaporation reactions
Additional Information : Embargo OK Metadata OK No Further Action
Depositing User : James Marshall
Date Deposited : 26 Aug 2020 15:01
Last Modified : 26 Aug 2020 15:01

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