June 2017

Journal

Complete spectroscopy of 211Po below 2.0 MeV via the (α, n) reaction

By:
Cottle, J.R.; Tripathi, Vandana; Brown, Alex; Abromeit, B.; Allmond, James M; Anastasiou, M.; Baby, L.T.; Baron, J.S.; Cottle, P.D.; Dungan, R.; Hensley, T.C.; Kemper, K.W.; Lubna, R.S.; Rijal, N.; Rubino, E.; Tabor, S.L.; Tai, P.-L.; Villafana, K.; Wiedenhoever, I.
Journal Name:
Physical Review C
Page Number:
1
Volume:
95
Issue Number:
064323
Publication Date:
June 27, 2017
View DOI Listing:
https://doi.org/10.1103/PhysRevC.95.064323

Abstract

We report the results of a γ-ray spectroscopic study of 211Po via the 208Pb(α,n) reaction at 24-MeV incident energy using a thick target. We observe 26 new γ rays, allowing us to identify 18 states that were not observed in previous γ -ray studies. In total, we observe 45 states below 2.0 MeV. A shell model calculation using the modified Kuo-Herling interaction developed by Warburton and Brown predicts 46 states below 2.0 MeV having spins of 21/2 and below, demonstrating the power of this calculation to provide detailed nuclear structure information on nuclei in the vicinity of 208Pb.


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