Direct observation of the Ba-114 -> Xe-110 -> Te-106 -> Sn-102 triple alpha-decay chain using position and time correlations

Capponi, L.; Smith, J.; Ruotsalainen, P.; Scholey, C.; Rahkila, P.; Auranen, K.; Bianco, L.; Boston, A.; Boston, H.; Cullen, D.; Derkx, X.; Drummond, M.; Grahn, T.; Greenlees, P.; Grocutt, L.; Hadinia, B.; Jakobsson, U.; Joss, D.; Julin, R.; Juutinen, S.; Labiche, M.; Leino, M.; Leach, K.; McPeake, C.; Mulholland, K.; Nieminen, P.; O'Donnell, D.; Paul, E.; Peura, P.; Sandzelius, M.; Saren, J.; Saygi, BAHADIR; Sorri, J.; Stolze, S.; Thornthwaite, A.; Taylor, M.; Uusitalo, J.

doi:10.1103/physrevc.94.024314

Direct observation of the Ba-114 -> Xe-110 -> Te-106 -> Sn-102 triple alpha-decay chain using position and time correlations

Capponi L., Smith J. F., Ruotsalainen P., Scholey C., Rahkila P., Auranen K., ...Daha Fazla

PHYSICAL REVIEW C, cilt.94, sa.2, 2016 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 94 Sayı: 2
Basım Tarihi: 2016
Doi Numarası: 10.1103/physrevc.94.024314
Dergi Adı: PHYSICAL REVIEW C
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Ankara Üniversitesi Adresli: Hayır

Özet

The triple alpha-decay chain Ba-114 -> Xe-110 -> Te-106 -> Sn-102 has been directly observed for the first time, following the Ni-58(Ni-58, 2n) reaction. Implantation of Ba-114 nuclei into a double-sided silicon-strip detector has allowed their alpha decays to be correlated in position and time with the a decays of the daughter (Xe-110) and granddaughter (Te-106) nuclei. In total, 17 events have been assigned to the Ba-114 -> Xe-110 -> Te-106 -> Sn-102 triple alpha-decay chain. The energy of the Ba-114 alpha decay has been measured to be E-alpha = 3480(20) keV, which is 70 keV higher than the previously measured value, and the half-life of Ba-114 has been measured with improved accuracy, to be 380(-110)(+190) ms. A revised Q(12C) value of 19 035(45) keV for Ba-114 is presented.