Nuclear Data Sheets for A = 109

Kumar, Sudha; Chen, J.; Kondev, F. G.

doi:10.1016/j.nds.2016.09.001

Cited by 29 publications

(18 citation statements)

References 269 publications

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“…GF and SLGT0 calculations report E(1/2 − ) − E(9/2 + ) = 783 and 568 keV, respectively, while the r3g interaction predicts the corresponding excitation energy of 473 keV. The average value of 0.61 (18) MeV is consistent with all of the experimentally known 1/2 − state energies of oddmass 103−111 In [44][45][46][47][48]. Therefore we propose a J π = (1/2 − ) assignment to the proton-emitting state and the J π = (9/2 + ) assignment to the β-decaying state.…”

Section: Nucleussupporting

confidence: 74%

β decays of the heaviest N=Z−1 nuclei and proton instability of In97

Park¹,

Krücken²,

Lubos³

et al. 2018

Phys. Rev. C

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We report on new or more precise half-lives, β-decay endpoint energies, and β-delayed proton emission branching ratios of 91 Pd, 95 Cd, 97 In, and 99 Sn. The measured values are consistent with known mirror transitions in lighter T z = −1/2 nuclei, shell-model calculations, and various mass models. In addition to the β-decaying (9/2 +) ground state, circumstantial evidence for a short-lived, proton-emitting isomer with spin (1/2 −) was found in 97 In. Based on the experimental data, a semiempirical theory on proton emission, and shell-model calculations, the proton separation energy of the 97 In ground state was determined to be −0.10 ± 0.19 MeV. The existence of the short-lived, proton-unstable (1/2 −) isomer in 97 In establishes 96 Cd as an rp-process waiting point.

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Section: Nucleussupporting

confidence: 74%

β decays of the heaviest N=Z−1 nuclei and proton instability of In97

Park¹,

Krücken²,

Lubos³

et al. 2018

Phys. Rev. C

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“…Lifetimes reported in Ref. [77] for the levels below are based on prelimary results from a conference presentation of the current measurement and should be superseded by the values reported here. The γ-γ coincidence pairs used in the determination of each lifetime value are listed in the last column (see also Fig.…”

Section: Resultsmentioning

confidence: 89%

“…The β-feeding intensities from Refs. [57,77] are provided on the left along with the relative γ-ray intensities displayed above each transition. Lifetimes obtained from the present work are labeled in purple font.…”

Section: Elev[kev]mentioning

confidence: 99%

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New insights into triaxiality and shape coexistence from odd-mass Rh109

et al. 2018

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Rapid shape evolutions near A=100 are now the focus of much attention in nuclear science. Much of the recent work has been centered on isotopes with Z≤40, where the shapes are observed to transition between near-spherical to highly-deformed with only a single pair of neutrons added. At higher Z, the shape transitions become more gradual as triaxiality sets in, yet the coexistence of varying shapes continues to play an important role in the low-energy nuclear structure, particularly in the odd-Z isotopes. This work aims to characterize competing shapes in the triaxial region between Zr and Sn isotopes using ultra-fast timing techniques to measure lifetimes of excited states in the neutron-rich nucleus, 109 Rh. The measurements confirm the persistence at higher-Z of similarlylarge deformations observed near Z=40. Moreover, we show that new self-consistent mean-field calculations, with proper treatment of the odd nucleon, are able to reproduce the coexisting triaxial and highly-deformed configurations revealing, for the first time, the important contribution of the unpaired nucleon to these different shapes based on the blocking of specific single-particle orbitals.

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“…The amount of 109 Cd-tracer in the solutions was determined by measurement of the conversionelectron spectrum from the disintegration of 109 Cd (see Figure 5.1 where the 88 keV Conversion electron peak is labelled). 60 Co resolved with a high-purity germanium detector [87].…”

Section: Radiotracersmentioning

confidence: 99%

Comparison of single-phase and two-phase measurements in extraction, separation and back-extraction of Cd, Zn and Co from a multi-element matrix using Aliquat 336

Lerum

Sand

Eriksen

et al. 2020

J Radioanal Nucl Chem

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First, I would like to thank my supervisor, Professor Jon Petter Omtvedt, for his support and guidance throughout this work. I would especially thank him for his great patience during our many discussions. I would also like to take this opportunity to thank my co-supervisors. Senior advisor, Dag Øistein Eriksen, for always helping with the initial work of the manuscripts and always suggesting new possible techniques or instruments for further investigations. Professor Eddy Walter Hansen, for his enthusiasm and help with our experimental results. Professor Grethe Wibetoe, for great discussions and an unparalleled eye for detail.

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Nuclear Data Sheets for A = 109

Cited by 29 publications

References 269 publications

β decays of the heaviest N=Z−1 nuclei and proton instability of In97

β decays of the heaviest N=Z−1 nuclei and proton instability of In97

New insights into triaxiality and shape coexistence from odd-mass Rh109

Comparison of single-phase and two-phase measurements in extraction, separation and back-extraction of Cd, Zn and Co from a multi-element matrix using Aliquat 336

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