О возможности использования нафталиновых кристаллов при получении жидких органических сцинтилляторов для использования в нейтринной физике
A.M. Pshukov, A.A. Kokoevа, D.N. Ermolenko, A.Z. Kashezhev
Kabardino-Balkarian State University named after H.M. Berbekov
DOI: 10.26456/pcascnn/2025.17.148
Original article
Abstract: This study reports a comprehensive investigation of novel scintillation systems based on syntin and dodecane, incorporating naphthalene and 2,5-diphenyloxazole as primary additives. For the first time, it was demonstrated that optimizing the naphthalene concentration and achieving direct spectral matching with the sensitivity range of photodetectors can result in a light yield surpassing that of standard pseudocumene-based solutions. At a naphthalene concentration of 100 g/L, excimer formation was observed, contributing additional emission components and broadening the fluorescence spectrum. This approach eliminates the need for secondary wavelength shifters, thereby reducing energy losses and improving energy resolution. The measured relative light yield reached up to 120 % of the reference pseudocumene solution, corresponding to approximately 15,600 photons/MeV for dodecane–naphthalene mixtures. The novelty of this work lies in the experimental validation of the feasibility of developing highly efficient liquid scintillators with a simplified composition and record-high light output without secondary shifting additives. The results highlight the potential of these materials for applications in ionizing radiation detection, including neutrinoless double-beta decay experiments.
Keywords: neutrinoless double beta decay, neodymium-150, liquid scintillator, synthine, dodecane, naphthalene, light output, fluorescent properties, energy transfer mechanism, quartz photomultipliers
- Аdam M. Pshukov – Ph. D., Senior Researcher, Director of the Center for New Detector Technologies and Neutrino Regulation, Kabardino-Balkarian State University named after H.M. Berbekov
- Aneta A. Kokoevа – Ph. D., Associate Professor, Department of Organic Chemistry and High Molecular Compounds, Kabardino-Balkarian State University named after H.M. Berbekov
- Danil N. Ermolenko – Research Intern, Center for Neutrino Detection Technologies, Kabardino-Balkarian State University named after H.M. Berbekov
- Alim Z. Kashezhev – Research Intern, Center for Neutrino Detection Technologies, Kabardino-Balkarian State University named after H.M. Berbekov
For citation:
Pshukov A.M., Kokoevа A.A., Ermolenko D.N., Kashezhev A.Z. O vozmozhnosti ispolzovaniya naftalinovykh kristallov pri poluchenii zhidkikh organicheskikh stsintillyatorov dlya ispolzovaniya v nejtrinnoj fizike [О возможности использования нафталиновых кристаллов при получении жидких органических сцинтилляторов для использования в нейтринной физике], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2025, issue 17, pp. 148-160. DOI: 10.26456/pcascnn/2025.17.148. ⎘
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