Direct observation of the Ba 114 →Xe 110 →Te 106 →Sn 102 triple α -decay chain using position and time correlations
- Capponi, L.
- Smith, J. F.
- Ruotsalainen, Panu
- Scholey, Catherine
- Rahkila, Panu
- Auranen, Kalle
- Bianco, L.
- Boston, A. J.
- Boston, H. C.
- Cullen, D. M.
- Derkx, X.
- Drummond, M. C.
- Grahn, Tuomas
- Greenlees, Paul
- Grocutt, L.
- Hadinia, B.
- Jakobsson, Ulrika
- Joss, D. T.
- Julin, Rauno
- Juutinen, Sakari
- Labiche, M.
- Leach, K. G.
- Leino, Matti
- McPeake, C.
- Mulholland, K. F.
- Nieminen, Päivi
- O'Donnell, D.
- Paul, E. S.
- Peura, Pauli
- Sandzelius, Mikael
- Sarén, Jan
- Saygi, B.
- Sorri, Juha
- Stolze, Sanna
- Thornthwaite, A.
- Taylor, M. J.
- Uusitalo, Juha
Publication date
September 2016
DOI Publisher
American Physical Society (APS) ISSN
2469-9985Abstract
The triple α-decay chain 114Ba → 110Xe → 106Te → 102Sn has been directly observed for the first time, following the 58Ni(58Ni ,2n) reaction. Implantation of 114Ba nuclei into a double-sided silicon-strip detector has allowed their α decays to be correlated in position and time with the α decays of the daughter (110Xe) and granddaughter (106Te) nuclei. In total, 17 events have been assigned to the 114Ba → 110Xe → 106Te → 102Sn triple α-decay chain. The energy of the 114Ba α decay has been measured to be Eα = 3480(20) keV, which is 70 keV higher than the previously measured value, and the half-life of 114Ba has been measured with improved accuracy, to be 380+190 −110 ms. A revised Q12C value of 19 035(45) keV for 114Ba is presented.pee...
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