New information on b-delayed neutron emission from 12,14Be

U C Bergmann, L Axelsson, M J G Borge, V N Fedoseyev, C Forssen, H O U Fynbo, S Grévy, P Hornshoj, Y Jading, B Jonson, U Köster, Karin Markenroth Bloch, F M Marqués, V I Mishin, T Nilsson, G Nyman, A Oberstedt, H L Ravn, K Riisager, G SchriederV Sebastian, H Simon, O Tengblad, F Wenander, K Wilhelmsen Rolander, The ISOLDE collaboration

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)129-145
JournalNuclear Physics, Section A
Volume658
Issue number2
DOIs
Publication statusPublished - 1999
Externally publishedYes

Free keywords

  • Radioactivity

Fingerprint

Dive into the research topics of 'New information on b-delayed neutron emission from 12,14Be'. Together they form a unique fingerprint.

Cite this