Academic Journal
Fabrication and Properties for Thermal Neutron Detection of 6 LiCl/Rb 2 CeCl 5 Eutectic Scintillator
| العنوان: | Fabrication and Properties for Thermal Neutron Detection of 6 LiCl/Rb 2 CeCl 5 Eutectic Scintillator |
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| المؤلفون: | Rei Sasaki, Kei Kamada, Masao Yoshino, Kyoung Jin Kim, Rikito Murakami, Takahiko Horiai, Akihiro Yamaji, Shunsuke Kurosawa, Yuui Yokota, Hiroki Sato, Yuji Ohashi, Takashi Hanada, Akira Yoshikawa |
| المصدر: | Crystals, Vol 14, Iss 2, p 154 (2024) |
| بيانات النشر: | MDPI AG |
| سنة النشر: | 2024 |
| المجموعة: | Directory of Open Access Journals: DOAJ Articles |
| مصطلحات موضوعية: | halide, scintillator, eutectic, vertical Bridgman (VB) method, thermal neutron, 6 Li, Crystallography, QD901-999 |
| الوصف: | The 3 He gas is commonly used for the detection of thermal neutrons. However, with the depletion of 3 He gas, there is a need to develop new solid scintillators for thermal neutron detection. Solid scintillators containing 6 Li, 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 6 Li concentration is limited by their chemical composition. In this study, we designed, grew, and evaluated a new eutectic scintillator, Rb 2 CeCl 5 /LiCl, which can improve the 6 Li concentration compared with single-crystal scintillators. Rb 2 CeCl 5 , 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 Rb 2 CeCl 5 and LiCl. The eutectic crystals exhibited Ce 3+ 5d-4f emissions, with a peak between 360 and 370 nm. The Rb 2 CeCl 5 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 Rb 2 CeCl 5 /LiCl eutectic scintillator is a promising candidate for use in thermal neutron detectors. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 2073-4352 |
| Relation: | https://www.mdpi.com/2073-4352/14/2/154; https://doaj.org/toc/2073-4352; https://doaj.org/article/aaf5679b80b045d69f609cf1eabcc8c0 |
| DOI: | 10.3390/cryst14020154 |
| الاتاحة: | https://doi.org/10.3390/cryst14020154 https://doaj.org/article/aaf5679b80b045d69f609cf1eabcc8c0 |
| رقم الانضمام: | edsbas.F2920165 |
| قاعدة البيانات: | BASE |
Full Text Finder | تدمد: | 20734352 |
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| DOI: | 10.3390/cryst14020154 |