Evidence of fast neutron detection capability of the CLLB scintillation detector

Pino, F.; Polo, Matteo; Delgado, Jessica; Mantovani, G.; Carturan, S.; Fabris, D.; Brunelli, Davide; Pancheri, Lucio; Quaranta, A.; Moretto, S.

doi:10.1016/j.radphyschem.2022.110494

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…This may be due to Li + substitution into the Rb + site of the Rb 2 CeCl 5 phase, as in the K 2 CeCl 5 /LiCl, resulting in a different reaction to neutrons and X-rays, but the detailed mechanism is not known. And these results show that the grown crystals had difficulty in discriminating neutrons from γ-rays according to the difference in decay times, like the previous study [23][24][25].…”

Section: Resultssupporting

confidence: 66%

Fabrication and Properties for Thermal Neutron Detection of 6LiCl/Rb2CeCl5 Eutectic Scintillator

Sasaki,

Kamada,

Yoshino

et al. 2024

Crystals

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The 3He gas is commonly used for the detection of thermal neutrons. However, with the depletion of 3He gas, there is a need to develop new solid scintillators for thermal neutron detection. Solid scintillators containing 6Li, which have large neutron capture cross-sections and a large amount of energy released by transmutation reactions, are commonly used as alternative candidates. However, only single-crystal scintillators are currently used, and their 6Li concentration is limited by their chemical composition. In this study, we designed, grew, and evaluated a new eutectic scintillator, Rb2CeCl5/LiCl, which can improve the 6Li concentration compared with single-crystal scintillators. Rb2CeCl5, which was selected as the scintillator phase, has excellent scintillator properties (light yield: 36,000 photons/MeV, decay time: mostly 24 ns, slightly 153 ns), and is less deliquescent than other halide scintillators. The crystal grown using the vertical Bridgman method exhibited a eutectic phase composed of Rb2CeCl5 and LiCl. The eutectic crystals exhibited Ce3+ 5d-4f emissions, with a peak between 360 and 370 nm. The Rb2CeCl5 phase was identified as the luminescent phase via cathodoluminescence mapping, and 16,000 photons/neutron of the light yield and 56.1 ns of the decay time were observed. This study indicates that the Rb2CeCl5/LiCl eutectic scintillator is a promising candidate for use in thermal neutron detectors.

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Section: Resultssupporting

confidence: 66%

Fabrication and Properties for Thermal Neutron Detection of 6LiCl/Rb2CeCl5 Eutectic Scintillator

Sasaki,

Kamada,

Yoshino

et al. 2024

Crystals

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“…LiI(Eu) scintillators, on the other hand, can measure neutron energy spectrum in the MeV range, but with poor resolution and low light yield. Recent studies have shown that appropriate doping levels and thermal treatment of pure LiI crystals doped with Eu 2+ can address the light yield issue in LiI(Eu) for neutron detection, and improve its energy resolution and n/ -discrimination capability to some extent [359]. LiF/ZnS:Ag, which exhibits [354] excellent n/ -discrimination characteristics, necessitates thin detectors due to the low transparency of ZnS(Ag), resulting in lower detection efficiency [360]].…”

Section: Inorganic Scintillatorsmentioning

confidence: 99%

Advances in nuclear detection and readout techniques

He,

Niu,

Wang

et al. 2023

NUCL SCI TECH

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Abstract“A Craftsman Must Sharpen His Tools to Do His Job,” said Confucius. Nuclear detection and readout techniques are the foundation of particle physics, nuclear physics, and particle astrophysics to reveal the nature of the universe. Also, they are being increasingly used in other disciplines like nuclear power generation, life sciences, environmental sciences, medical sciences, etc. The article reviews the short history, recent development, and trend of nuclear detection and readout techniques, covering Semiconductor Detector, Gaseous Detector, Scintillation Detector, Cherenkov Detector, Transition Radiation Detector, and Readout Techniques. By explaining the principle and using examples, we hope to help the interested reader underst and this research field and bring exciting information to the community.

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“…In fact, X-rays interact primarily with high Z material, while neutrons have the opposite behavior, so they can use for studying low Z elements, which are the main components of organic materials [2]. In the past, the most common solution for detecting neutrons was the 3 He tube, but due to the lack of this gas other detectors had to be developed [3], as an example based on inorganic scintillators, where an active conversion material is used [4,5]. Semiconductor detectors can also be used for thermal neutron detection: the first solution is based on neutron-sensitive semiconductor materials (LiInSe, LiSe, BN), where most of the charge from the neutron reaction is available for transduction within the sensor itself [6].…”

Section: Introductionmentioning

confidence: 99%

Characterization of 3D micro-structured TIMEPIX detectors for neutron imaging

Polo,

Mendicino,

Quaranta

et al. 2023

EPJ Web Conf.

Self Cite

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Neutron imaging provides additional information to X-ray imaging and can be used in many applications, for example, nuclear engineering, non-industrial diagnostics and homeland security. This paper presents the latest development results of a new 3D structured pixel detector for thermal neutron detection and imaging. The device is based on Medipix/Timepix read-out chip family. The detector, without converter materials, was initially tested in the laboratory with a 241Am source, to simulate events that are induced by reaction products of active material in the silicon bulk. Thanks to the analysis of the size of event clusters and deposited energy, α particles and noise signals were discriminated. The detector was also tested with β and γ sources, to study the effect of other radiation on the device. These results can be useful as a starting point for future experiments, where a neutron source will be used, after filling the cavities with active materials, such as 6Li or 10B. In this paper, the results of the characterization and a comparison between experimental data and Monte Carlo simulations are shown.

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Evidence of fast neutron detection capability of the CLLB scintillation detector

Cited by 10 publications

References 27 publications

Fabrication and Properties for Thermal Neutron Detection of 6LiCl/Rb2CeCl5 Eutectic Scintillator

Fabrication and Properties for Thermal Neutron Detection of 6LiCl/Rb2CeCl5 Eutectic Scintillator

Advances in nuclear detection and readout techniques

Characterization of 3D micro-structured TIMEPIX detectors for neutron imaging

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