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Author  |
n_TOF Collaboration (Balibrea-Correa, J. et al); Lerendegui-Marco, J.; Domingo-Pardo, C.; Ladarescu, I.; Tarifeño-Saldivia, A.; de la Fuente-Rosales, G.; Gameiro, B. |
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Title |
Towards a new generation of solid total-energy detectors for neutron-capture time-of-flight experiments with intense neutron beams |
Type |
Journal Article |
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Year |
2025 |
Publication |
Nuclear Instruments & Methods in Physics Research A |
Abbreviated Journal |
Nucl. Instrum. Methods Phys. Res. A |
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Volume |
1072 |
Issue |
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Pages |
170110 - 14pp |
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Keywords |
Neutron capture; gamma-ray detectors; High sensitivity; Hybrid setup; Stilbene-d12 |
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Abstract |
Challenging neutron-capture cross-section measurements of small cross sections and samples with a very limited number of atoms require high-flux time-of-flight facilities. In turn, such facilities need innovative detection setups that are fast, have low sensitivity to neutrons, can quickly recover from the so-called. gamma-flash, and offer the highest possible detection sensitivity. In this paper, we present several steps towards such advanced systems. Specifically, we describe the performance of a high-sensitivity experimental setupat CERN n_TOF EAR2. It consists of nine sTED detector modules in a compact cylindrical configuration, two conventional used large-volume C6D6 detectors, and one LaCl3(Ce) detector. The performance of these detection systems is compared using Nb-93(n, gamma) data. We also developed a detailed GEANT4 Monte Carlo model of the experimental EAR2 setup, which allows for a better understanding of the detector features, including their efficiency determination. This Monte Carlo model has been used for further optimization, thus leading to a new conceptual design of a gamma detector array, STAR, based on a deuterated-stilbene crystal array. Finally, the suitability of deuterated-stilbene crystals for the future STAR array is investigated experimentally utilizing a small stilbene-d12 prototype. The results suggest a similar or superior performance of STAR with respect to other setups based on liquid-scintillators, and allow for additional features such as neutron-gamma discrimination and a higher level of customization capability. |
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Address |
[Balibrea-Correa, J.; Lerendegui-Marco, J.; Domingo-Pardo, C.; Ladarescu, I.; Tarifeno-Saldivia, A.; de la Fuente-Rosales, G.; Gameiro, B.] CSIC Univ Valencia, Inst Fis Corpuscular, Valencia, Spain, Email: javier.balibrea@ific.uv.es |
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Publisher |
Elsevier |
Place of Publication |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0168-9002 |
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Notes |
WOS:001381479700001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6412 |
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