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

Atıf İçin Kopyala

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)

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
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.