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New information on $\beta$-delayed neutron emission from $^{12, 14}$Be
The $\beta$-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For $^{14}$Be a new value of P$_{n}$= 101 $\pm$ 4% has been found for the total neutron-emission probability and an upper limit of 2.4% (95% confidence level) is imp...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
1999
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/S0375-9474(99)00348-6 http://cds.cern.ch/record/778997 |
| _version_ | 1780904317038886912 |
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| author | Bergmann, U C Axelsson, L García-Borge, M J Fedosseev, V Forssén, C Fynbo, H O U Grévy, S Hornshøj, P Jading, Y Jonson, B Köster, U Markenroth, K G Marqués, F M Mishin, V I Nilsson, T Nyman, G H Oberstedt, A Ravn, H L Riisager, K Schrieder, G Sebastian, V Simon, H Tengblad, O Wenander, F Wilhelmsen-Rolander, K |
| author_facet | Bergmann, U C Axelsson, L García-Borge, M J Fedosseev, V Forssén, C Fynbo, H O U Grévy, S Hornshøj, P Jading, Y Jonson, B Köster, U Markenroth, K G Marqués, F M Mishin, V I Nilsson, T Nyman, G H Oberstedt, A Ravn, H L Riisager, K Schrieder, G Sebastian, V Simon, H Tengblad, O Wenander, F Wilhelmsen-Rolander, K |
| author_sort | Bergmann, U C |
| collection | CERN |
| description | The $\beta$-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For $^{14}$Be a new value of P$_{n}$= 101 $\pm$ 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 P$_{2n}$ + 3P$_{3n}$ of multi-neutron emission probabilities. Moreover, an improved value of P$_{n}$ = 0.50 $\pm$ 0.03% has been obtained for $^{12}$Be. 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. |
| id | cern-778997 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1999 |
| record_format | invenio |
| spelling | cern-7789972019-09-30T06:29:59Zdoi:10.1016/S0375-9474(99)00348-6http://cds.cern.ch/record/778997engBergmann, U CAxelsson, LGarcía-Borge, M JFedosseev, VForssén, CFynbo, H O UGrévy, SHornshøj, PJading, YJonson, BKöster, UMarkenroth, K GMarqués, F MMishin, V INilsson, TNyman, G HOberstedt, ARavn, H LRiisager, KSchrieder, GSebastian, VSimon, HTengblad, OWenander, FWilhelmsen-Rolander, KNew information on $\beta$-delayed neutron emission from $^{12, 14}$BeNuclear Physics - ExperimentThe $\beta$-delayed neutron branches from neutron-rich Be-isotopes have been measured with a setup sensitive down to thermal energies. For $^{14}$Be a new value of P$_{n}$= 101 $\pm$ 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 P$_{2n}$ + 3P$_{3n}$ of multi-neutron emission probabilities. Moreover, an improved value of P$_{n}$ = 0.50 $\pm$ 0.03% has been obtained for $^{12}$Be. 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.oai:cds.cern.ch:7789971999 |
| spellingShingle | Nuclear Physics - Experiment Bergmann, U C Axelsson, L García-Borge, M J Fedosseev, V Forssén, C Fynbo, H O U Grévy, S Hornshøj, P Jading, Y Jonson, B Köster, U Markenroth, K G Marqués, F M Mishin, V I Nilsson, T Nyman, G H Oberstedt, A Ravn, H L Riisager, K Schrieder, G Sebastian, V Simon, H Tengblad, O Wenander, F Wilhelmsen-Rolander, K New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title | New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title_full | New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title_fullStr | New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title_full_unstemmed | New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title_short | New information on $\beta$-delayed neutron emission from $^{12, 14}$Be |
| title_sort | new information on $\beta$-delayed neutron emission from $^{12, 14}$be |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1016/S0375-9474(99)00348-6 http://cds.cern.ch/record/778997 |
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