Commissioning of the BRIKEN detector for the measurement of very exotic β-delayed neutron emitters

A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray de...

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Detalles Bibliográficos
Autores: BRIKEN Collaboration, Tolosa-Delgado, A., Agramunt, Jorge, Taín, José Luis, Algora, Alejandro, Domingo Pardo, César, Morales, Ana Isabel, Rubio, Berta, Tarifeño-Saldivia, A., Calviño, F., Cortés, Guillem, Brewer, N. T., Rasco, B. C., Rykaczewski, K. P., Stracener, D. W., Allmond, J. M., Grzywacz, R., Yokoyama, R., Singh, M., King, T., Madurga, Miguel, Nishimura, S., Phong, V.H., Go, S., Liu, J., Matsui, K., Sakurai, H., Kiss, G.G., Isobe, T., Baba, H., Kubono, S., Fukuda, N., Ahn, D.S., Shimizu, Y., Sumikama, T., Suzuki, H., Takeda, H., Söderström, P. A., Takechi, M., Bruno, C. G., Davinson, T., Griffin, C.J., Hall, O., Kahl, D., Woods, P. J., Coleman-Smith, P. J., Labiche, M., Lazarus, I., Morrall, P., Pucknell, V.F.E.
Tipo de recurso: artículo
Estado:Versión enviada para evaluación y publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/208367
Acceso en línea:http://hdl.handle.net/10261/208367
Access Level:acceso abierto
Palabra clave:Beta-delayed neutrons
Neutron and beta counters
Analysis methodology
Background correction
Descripción
Sumario:A new detection system has been installed at the RIKEN Nishina Center (Japan) to investigate decay properties of very neutron-rich nuclei. The setup consists of three main parts: a moderated neutron counter, a detection system sensitive to the implantation and decay of radioactive ions, and γ-ray detectors. We describe here the setup, the commissioning experiment and some selected results demonstrating its performance for the measurement of half-lives and β-delayed neutron emission probabilities. The methodology followed in the analysis of the data is described in detail. Particular emphasis is placed on the correction of the accidental neutron background.

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