Journal
PHYSICAL REVIEW C
Volume 89, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.064309
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Funding
- UK Science and Technology Facilities Council (STFC)
- EU 7th Framework Programme Integrating Activities-Transnational Access [262010 (ENSAR)]
- Academy of Finland under the Finnish Centre of Excellence Programme
- Academy of Finland [131665]
- STFC [EP/E004385/1, EP/C015266/1, ST/L005670/1, ST/J000094/1, ST/G008671/1, ST/L005689/1, ST/J000108/1, EP/D002257/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/G008620/1, ST/G008671/1, EP/C015266/1, ST/J000094/1, ST/L005670/1, EP/E004385/1, ST/L005689/1, EP/C015371/1, EP/D002257/1, ST/J000108/1] Funding Source: researchfish
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The alpha-decay branch of the pi h(11/2) isomer in Ir-164 has been identified using the GREAT spectrometer. The Ir-164 nuclei were produced using the Mo-92(Kr-78, p5n)Ir-164 reaction and separated in flight using the recoil ion transport unit (RITU) gas-filled separator. The measured alpha-decay energy of 6880 +/- 10 keV allowed the excitation of the pi h(11/2) state in Re-160 to be deduced as 166 +/- 14 keV. The half-life of Ir-164 was measured with improved precision to be 70 +/- 10 mu s and an alpha-decay branching ratio of 4 +/- 2% was determined. Improved half-life and branching ratio measurements were also obtained for Ir-165, but no evidence was found for the ground-state decays of either Ir-164 or Ir-165.
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