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Conceptual design of a hybrid neutron-gamma detector for study of ß-delayed neutrons at the RIB facility of RIKEN
dc.contributor.author | Tarifeño Saldivia, Ariel Esteban |
dc.contributor.author | Taín Enríquez, José Luis |
dc.contributor.author | Domingo Pardo, César |
dc.contributor.author | Calviño Tavares, Francisco |
dc.contributor.author | Cortés Rossell, Guillem Pere |
dc.contributor.author | Phong, V.H. |
dc.contributor.author | Riego Pérez, Albert |
dc.contributor.author | Agramunt Ros, Jorge |
dc.contributor.author | Algora, A. |
dc.contributor.other | Universitat Politècnica de Catalunya. Institut de Tècniques Energètiques |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física |
dc.date.accessioned | 2017-06-26T10:20:17Z |
dc.date.available | 2018-04-07T00:30:18Z |
dc.date.issued | 2017-04-07 |
dc.identifier.citation | Tarifeño, A., Taín, J.L., Domingo-Pardo, C., Calviño, F., Cortes, G., Phong, V., Riego, A., Agramunt, J., Algora, A. Conceptual design of a hybrid neutron-gamma detector for study of ß-delayed neutrons at the RIB facility of RIKEN. "Journal of instrumentation", 7 Abril 2017, vol. 12, núm. 4, p. P04006-1-P04006-21. |
dc.identifier.issn | 1748-0221 |
dc.identifier.uri | http://hdl.handle.net/2117/105863 |
dc.description.abstract | The conceptual design of the BRIKEN neutron detector at the radioactive ion beam factory (RIBF) of the RIKEN Nishina Center is reported. The BRIKEN setup is a complex system aimed at detecting heavy-ion implants, ß particles, ¿ rays and ß-delayed neutrons. The whole setup includes the Advanced Implantation Detection Array (AIDA), two HPGe Clover detectors and up to 166 3He-filled counters embedded in a high-density polyethylene moderator. The design is quite complex due to the large number and different types of 3He-tubes involved and the additional constraints introduced by the ancillary detectors for charged particles and ¿ rays. This article reports on a novel methodology developed for the conceptual design and optimisation of the 3He-counter array, aiming for the best possible performance in terms of neutron detection. The algorithm is based on a geometric representation of two selected detector parameters of merit, namely, the average neutron detection efficiency and the efficiency flatness as a function of a reduced number of geometric variables. The response of the neutron detector is obtained from a systematic Monte Carlo simulation implemented in GEANT4. The robustness of the algorithm allowed us to design a versatile detection system, which operated in hybrid mode includes the full neutron counter and two clover detectors for high-precision gamma spectroscopy. In addition, the system can be reconfigured into a compact mode by removing the clover detectors and re-arranging the 3He tubes in order to maximize the neutron detection performance. Both operation modes shows a rather flat and high average efficiency. In summary, we have designed a system which shows an average efficiency for hybrid mode (3He tubes + clovers) of 68.6% and 64% for neutron energies up to 1 and 5 MeV, respectively. For compact mode (only 3He tubes), the average efficiency is 75.7% and 71% for neutron energies up to 1 and 5 MeV, respectively. The performance of the BRIKEN detection system has been also quantified by means of Monte Carlo simulations with different neutron energy distributions. |
dc.language.iso | eng |
dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Spain |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject | Àrees temàtiques de la UPC::Energies::Energia nuclear |
dc.subject.lcsh | Neutrons |
dc.subject.lcsh | Gamma rays |
dc.subject.lcsh | Monte Carlo method |
dc.title | Conceptual design of a hybrid neutron-gamma detector for study of ß-delayed neutrons at the RIB facility of RIKEN |
dc.type | Article |
dc.subject.lemac | Neutrons |
dc.subject.lemac | Raigs gamma |
dc.subject.lemac | Montecarlo, Mètode de |
dc.contributor.group | Universitat Politècnica de Catalunya. ANT - Advanced Nuclear Technologies Research Group |
dc.contributor.group | Universitat Politècnica de Catalunya. NERG - Grup de Recerca d'Enginyeria Nuclear |
dc.identifier.doi | 10.1088/1748-0221/12/04/P04006 |
dc.relation.publisherversion | http://iopscience.iop.org/article/10.1088/1748-0221/12/04/P04006/meta;jsessionid=7471A60EA193FFF01E300D20C3697D59.c1.iopscience.cld.iop.org |
dc.rights.access | Open Access |
local.identifier.drac | 21076140 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO//FPA2014-52823-C2-2-P/ES/ESTUDIOS DE DESINTEGRACIONES BETA Y DE REACCIONES PARA LA ESTRUCTURA NUCLEAR, ASTROFISICA Y APLICACIONES/ |
local.citation.author | Tarifeño, A.; Taín, J.L.; Domingo-Pardo, C.; Calviño, F.; Cortes, G.; Phong, V.; Riego, A.; Agramunt, J.; Algora, A. |
local.citation.publicationName | Journal of instrumentation |
local.citation.volume | 12 |
local.citation.number | 4 |
local.citation.startingPage | P04006-1 |
local.citation.endingPage | P04006-21 |
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