Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics
Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>. The super-stoichiometric additive of gadolini...
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MDPI AG
2022-08-01
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| author | Mikhail Korzhik Vasilii Retivov Alexei Bondarau Georgiy Dosovitskiy Valery Dubov Irina Kamenskikh Petr Karpuk Daria Kuznetsova Valentina Smyslova Vitaly Mechinsky Vladimir Pustovarov Dmitry Tavrunov Evgeniy Tishchenko Andrei Vasil’ev |
| author_facet | Mikhail Korzhik Vasilii Retivov Alexei Bondarau Georgiy Dosovitskiy Valery Dubov Irina Kamenskikh Petr Karpuk Daria Kuznetsova Valentina Smyslova Vitaly Mechinsky Vladimir Pustovarov Dmitry Tavrunov Evgeniy Tishchenko Andrei Vasil’ev |
| author_sort | Mikhail Korzhik |
| collection | DOAJ |
| description | Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>. The super-stoichiometric additive of gadolinium in the material composition or its co-doping with a low concentration of Mg were found to be effective tools to suppress phosphorescence in the quaternary garnet, confirming that it is not an intrinsic property of the material. The Monte-Carlo simulation of electronic excitation transfer demonstrates that the hopping migration along the gadolinium sublattice plays an essential role in forming the scintillation kinetic parameters. Breaking the integrity of the gadolinium sublattice by substitution with heavier lutetium ions increases the role of self-trapped states in the excitation of Ce<sup>3+</sup> ions, which ensures both an increase in the fraction of short ~20 ns and very long ~600 ns components in the scintillation kinetics. |
| first_indexed | 2024-03-10T00:21:05Z |
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| id | doaj.art-a8cf00b52d114f048d4935763c3f0b07 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T00:21:05Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-a8cf00b52d114f048d4935763c3f0b072023-11-23T15:42:58ZengMDPI AGCrystals2073-43522022-08-01129119610.3390/cryst12091196Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce CeramicsMikhail Korzhik0Vasilii Retivov1Alexei Bondarau2Georgiy Dosovitskiy3Valery Dubov4Irina Kamenskikh5Petr Karpuk6Daria Kuznetsova7Valentina Smyslova8Vitaly Mechinsky9Vladimir Pustovarov10Dmitry Tavrunov11Evgeniy Tishchenko12Andrei Vasil’ev13Institute for Nuclear Problems, Belarus State University, 11 Bobruiskaya, 220030 Minsk, BelarusNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaInstitute for Nuclear Problems, Belarus State University, 11 Bobruiskaya, 220030 Minsk, BelarusNRC “Kurchatov Institute”—IREA, 107076 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaPhysical Department of Moscow State University, 119991 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaNational Research Center “Kurchatov Institute”, 123098 Moscow, RussiaInstitute for Nuclear Problems, Belarus State University, 11 Bobruiskaya, 220030 Minsk, BelarusPhysics Department, Ural Federal University, 620002 Yekaterinburg, RussiaPhysics Department, Ural Federal University, 620002 Yekaterinburg, RussiaPhysical Department of Moscow State University, 119991 Moscow, RussiaSkobelchin Institute for Nuclear Physics, Moscow State University, 119991 Moscow, RussiaTechnological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>. The super-stoichiometric additive of gadolinium in the material composition or its co-doping with a low concentration of Mg were found to be effective tools to suppress phosphorescence in the quaternary garnet, confirming that it is not an intrinsic property of the material. The Monte-Carlo simulation of electronic excitation transfer demonstrates that the hopping migration along the gadolinium sublattice plays an essential role in forming the scintillation kinetic parameters. Breaking the integrity of the gadolinium sublattice by substitution with heavier lutetium ions increases the role of self-trapped states in the excitation of Ce<sup>3+</sup> ions, which ensures both an increase in the fraction of short ~20 ns and very long ~600 ns components in the scintillation kinetics.https://www.mdpi.com/2073-4352/12/9/1196scintillationceriumlutetiumquaternary garnetlight yielddecay time |
| spellingShingle | Mikhail Korzhik Vasilii Retivov Alexei Bondarau Georgiy Dosovitskiy Valery Dubov Irina Kamenskikh Petr Karpuk Daria Kuznetsova Valentina Smyslova Vitaly Mechinsky Vladimir Pustovarov Dmitry Tavrunov Evgeniy Tishchenko Andrei Vasil’ev Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics Crystals scintillation cerium lutetium quaternary garnet light yield decay time |
| title | Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics |
| title_full | Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics |
| title_fullStr | Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics |
| title_full_unstemmed | Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics |
| title_short | Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)<sub>3</sub>Al<sub>2</sub>Ga<sub>3</sub>O<sub>12</sub>: Ce Ceramics |
| title_sort | role of the dilution of the gd sublattice in forming the scintillation properties of quaternary gd lu sub 3 sub al sub 2 sub ga sub 3 sub o sub 12 sub ce ceramics |
| topic | scintillation cerium lutetium quaternary garnet light yield decay time |
| url | https://www.mdpi.com/2073-4352/12/9/1196 |
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