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Start Over Author "Mont-Geli N." Publisher edp sciences
5 results on '"Mont-Geli N."'

1. Commissioning of miniBELEN-10A, a moderated neutron counter with a flat efficiency for thick-target neutron yields measurements

Author

Mont-Geli N., Tarifeño-Saldivia A., Fraile L.M., Viñals S., Perea A., Pallàs M., Cortés G., Garcia G., Nácher E., Tain J.L., Alcayne V., Alonso-Sañudo O., Algora A., Balibrea-Correa J., Benito J., Borge M.J.G., Briz J.A., Calviño F., Cano-Ott D., De Blas A., Domingo-Pardo C., Fernández B., Garcia R., Gómez-Camacho J., González-Romero E.M., Guerrero C., Lerendegui-Marco J., Llanos M., Martínez T., Martínez-Nouvilas V., Mendoza E., Murias J.R., Orrigo S.E.A., Pérez de Rada A., Pesudo V., Plaza J., Quesada J.M., Sánchez A., Sánchez-Tembleque V., Santorelli R., Tengblad O., Udías J.M., and Villamarín D.

Subjects
Physics, QC1-999
Abstract

miniBELEN-10A is a modular and transportable moderated neutron counter with a nearly flat detection efficiency up to 8 MeV. The detector was designed to carry out measurements of (α, n) reactions in the context of the Measurement of Alpha Neutron Yields (MANY) project. In this work we present the results of the commissioning of miniBELEN-10A using the relatively well-known thick-target neutron yields from 27Al(α, n)30P.

Published
2023
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2. Study of decay properties of Ba to Nd nuclei (A~160) relevant to the formation of the r-process rare-earth peak

Author

Pallàs M., Tarifeño-Saldivia A., Kiss G. G., Tain J. L., Tolosa-Delgado A., Vitéz-Sveiczer A., Calviño F., Agramunt J., Aguilera P., Algora A., Allmond J. M., Baba H., Brewer N. T., Caballero-Folch R., Coleman-Smith P. J., Cortes G., Davinson T., Dillmann I., Domingo-Pardo C., Estrade A., Fukuda N., Go S., Griffin C. J., Grzywacz R. K., Hall O., Harkness-Brennan L. J., Isobe T., Kahl D., King T. T., Korgul A., Kovács S., Kubono S., Labiche M., Liu J., Madurga M., Miernik K., Molina F., Mont-Geli N., Morales A. I., Nácher E., Navarro A., Nepal N., Nishimura S., Piersa-Silkowska M., Phong V., Rasco B. C., Romero-Barrientos J., Rubio B., Rykaczewski K. P., Saito Y., Sakurai H., Shimizu Y., Singh M., Sumikama T., Suzuki H., Szegedi T. N., Takeda H., Wang K., Wolińska-Cichocka M., Woods P. J., and Yokoyama R.

Subjects
Physics, QC1-999
Abstract

Half-lifes (T1/2) of exotic neutron-rich isotopes of Ba, La, Ce, Pr, and Nd were measured at the RIKEN Nishina Center. The experimental setup consisted of the BigRIPS in-flight separator for ion selection identification, the Advance Implantation Detector Array (AIDA) for ions and β detection, and the BRIKEN detector for neutron counting. Using this setup, 4 new T1/2 have been measured for the first time, and 38 T1/2 have been remeasured with improved precision in several cases. These new experimental data should help to constrain theoretical models for calculations of T1/2. The status of the experimental analysis and preliminary results are provided in this contribution.

Published
2023
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3. miniBELEN: A modular neutron counter for (𝜶, 𝒏) reactions

Author

Mont-Geli N., Tarifeño-Saldivia A., Fraile L.M., Viñals S., Perea A., Pallàs M., Cortés G., Nácher E., Tain J.L., Alcayne V., Algora A., Balibrea-Correa J., Benito J., Borge M.J.G., Briz J.A., Calviño F., Cano-Ott D., De Blas A., Domingo-Pardo C., Fernández B., Garcia R., García G., Gómez-Camacho J., González-Romero E.M., Guerrero C., Lerendegui-Marco J., Llanos M., Martínez T., Mendoza E., Murias J.R., Orrigo S.E.A., Pérez de Rada A., Pesudo V., Plaza J., Quesada J.M., Sánchez A., Sánchez-Tembleque V., Santorelli R., Tengblad O., Udías J.M., and Villamarín D.

Subjects
Physics, QC1-999
Abstract

miniBELEN is a modular and transportable neutron moderated counter with a nearly flat neutron detection efficiency up to 10 MeV. Modularity implies that the moderator can be reassembled in different ways in order to obtain different types of response. The detector has been developed in the context of the Measurement of Alpha Neutron Yields (MANY) collaboration, which is a scientific effort aiming to carry out measurements of (𝛼, 𝑛) production yields, reaction cross-sections and neutron energy spectra. In this work we present and discuss several configurations of the miniBELEN detector. The experimental validation of the efficiency calculations using 252Cf sources and the measurement of the 27Al(𝛼, 𝑛) 30P reaction is also presented.

Published
2023
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4. Study of decay properties for Ba to Nd nuclei relevant for the formation of the r-process rare-earth peak (A∼160)

Author

Pallàs M., Tarifeño-Saldivia A., Kiss G. G., Tain J. L., Tolosa-Delgado A., Vitéz-Sveiczer A., Calviño F., Agramunt J., Aguilera P., Algora A., Allmond J. M., Baba H., Brewer N. T., Caballero-Folch R., Coleman-Smith P. J., Cortes G., Davinson T., Dillmann I., Domingo-Pardo C., Estrade A., Fukuda N., Go S., Griffin C. J., Grzywacz R. K., Hall O., Harkness-Brennan L. J., Isobe T., Kahl D., King T. T., Korgul A., Kovács S., Kubono S., Labiche M., Liu J., Madurga M., Miernik K., Molina F., Mont-Geli N., Morales A. I., Nácher E., Navarro A., Nepal N., Nishimura S., Piersa-Silkowska M., Phong V., Rasco B. C., Romero-Barrientos J., Rubio B., Rykaczewski K. P., Saito Y., Sakurai H., Shimizu Y., Singh M., Sumikama T., Suzuki H., Szegedi T. N., Takeda H., Wang K., Wolińska-Cichocka M., Woods P. J., and Yokoyama R.

Subjects
Physics, QC1-999
Abstract

At the RIKEN Nishina Center, exotic neutron-rich isotopes of Ba, La, Ce, Pr, and Nd were measured. This work reports their half-lives (T1/2) and β-delayed neutron-emission probabilities (Pxn). The setup consisted of the BigRIPS in-flight separator for particle identification, the Advanced Implantation Detector Array (AIDA) for ions and β detection, and the BRIKEN neutron counter for neutron detection. Using this arrangement, 4 new T1/2 and 14 new P1n were measured. Furthermore, 38 T1/2 and 2 P1n values were remeasured, decreasing the uncertainties for some of them. In addition to improving predictions of nucleosynthesis models that describe the production of the rare-earth peak at A ∼ 160 via the r-process, these additional experimental data should help to constrain theoretical models for calculations of T1/2 and Pxn in this region.

Published
2023
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5. miniBELEN: A modular neutron counter for (휶, 풏) reactions.

Author

Mont-Geli, N., Tarifeño-Saldivia, A., Fraile, L.M., Viñals, S., Perea, A., Pallàs, M., Cortés, G., Nácher, E., Tain, J.L., Alcayne, V., Algora, A., Balibrea-Correa, J., Benito, J., Borge, M.J.G., Briz, J.A., Calviño, F., Cano-Ott, D., De Blas, A., Domingo-Pardo, C., and Fernández, B.

Subjects
NEUTRON counters, NUCLEAR reactions, NUCLEAR cross sections, NEUTRON temperature, NUCLEAR counters
Abstract

miniBELEN is a modular and transportable neutron moderated counter with a nearly flat neutron detection efficiency up to 10 MeV. Modularity implies that the moderator can be reassembled in different ways in order to obtain different types of response. The detector has been developed in the context of the Measurement of Alpha Neutron Yields (MANY) collaboration, which is a scientific effort aiming to carry out measurements of (훼, 푛) production yields, reaction cross-sections and neutron energy spectra. In this work we present and discuss several configurations of the miniBELEN detector. The experimental validation of the efficiency calculations using 252Cf sources and the measurement of the 27Al(훼, 푛) 30P reaction is also presented. [ABSTRACT FROM AUTHOR]

Published
2023
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