Abstract
Metal-loaded liquid organic scintillators (MeLS) are discussed from the point of view of light yield at high metal loading (Gd, Nd, Zr, In). It is shown that, when metal \(\beta\)-diketonates are introduced into the scintillator, its light yield is always lower than when carboxylates are used, which is explained by the structural difference between these complexes. The nature of the metal in some cases (Nd) also affects the light attenuation length and, consequently, the MeLS light yield. The composition of the solvent (the fraction of aromatics in the main solvent) and the degree of purification of the introduced metal complex also have a significant effect on the light yield.
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Funding
The work is supported by the state assignment of the Ministry of Science and Higher Education of the Russian Federation, project no. FZZR-2022-0004. In this work we used the research equipment of the Center for Studying Molecular Structure of the Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences.
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Barabanov, I.R., Veresnikova, A.V., Isupova, Z.Y. et al. Metal-Loaded Liquid Organic Scintillators for Recording Rare Events: Light Yield at High Metal Concentration. Phys. Atom. Nuclei 86, 1286–1295 (2023). https://doi.org/10.1134/S1063778823060108
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DOI: https://doi.org/10.1134/S1063778823060108