Abstract
The β-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For 14Be a new value of Pn = 101 ± 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imposed on the combination P2n + 3P3n of multi-neutron emission probabilities. Moreover, an improved value of Pn = 0.50 ± 0.03% has been obtained for 12Be. A time-correlation method, previously developed for a continuous radioactive beam to determine neutron branching ratios, has been revised and adapted to the pulsed secondary beam at ISOLDE, CERN.
Original language | English |
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Pages (from-to) | 129-145 |
Journal | Nuclear Physics, Section A |
Volume | 658 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1999 |
Externally published | Yes |
Free keywords
- Radioactivity