alpha decay of the pi h(11/2) isomer in Ir-164

Drummond, M.; O'Donnell, D.; Page, R.; Joss, D.; Capponi, L.; Cox, D.; Darby, I.; Donosa, L.; Filmer, F.; Grahn, T.; Greenlees, P.; Hauschild, K.; Herzan, A.; Jakobsson, U.; Jones, P.; Julin, R.; Juutinen, S.; Ketelhut, S.; Leino, M.; Lopez-Martens, A.; Mistry, A.; Nieminen, P.; Peura, P.; Rahkila, P.; Rinta-Antila, S.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Saygi, BAHADIR; Scholey, C.; Simpson, J.; Sorri, J.; Thornthwaite, A.; Uusitalo, J.

doi:10.1103/physrevc.89.064309

alpha decay of the pi h(11/2) isomer in Ir-164

Drummond M. C., O'Donnell D., Page R. D., Joss D. T., Capponi L., Cox D. M., ...Daha Fazla

PHYSICAL REVIEW C, cilt.89, sa.6, 2014 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 89 Sayı: 6
Basım Tarihi: 2014
Doi Numarası: 10.1103/physrevc.89.064309
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Ankara Üniversitesi Adresli: Hayır

Özet

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.