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基于掺杂Ce和Sc杂质的YAG和LuAG石榴石外延结构的三层复合闪烁体。

Three-Layered Composite Scintillator Based on the Epitaxial Structures of YAG and LuAG Garnets Doped with Ce and Sc Impurities.

作者信息

Witkiewicz-Łukaszek Sandra, Gorbenko Vitalii, Zorenko Tetiana, Pejchal Jan, Mares Jiri A, Kucerkova Romana, Beitlerova Alena, Nikl Martin, Sidletskiy Oleg, Winiecki Janusz, D'Ambrosio Carmelo, Zorenko Yuriy

机构信息

Faculty of Physics, Kazimierz Wielki University in Bydgoszcz, Powstańców Wielkopolskich Street 2, 85-090 Bydgoszcz, Poland.

Institute of Physics, Academy of Sciences of the Czech Republic, 6253 Prague, Czech Republic.

出版信息

Materials (Basel). 2024 Aug 13;17(16):4025. doi: 10.3390/ma17164025.

DOI:10.3390/ma17164025
PMID:39203203
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11356001/
Abstract

In this study, we propose novel three-layer composite scintillators designed for the simultaneous detection of different ionizing radiation components. These scintillators are based on epitaxial structures of LuAG and YAG garnets, doped with Ce and Sc ions. Samples of these composite scintillators, containing YAG:Ce and LuAG:Ce single crystalline films with different thicknesses and LuAG:Sc single crystal substrates, were grown using the liquid phase epitaxy method from melt solutions based on PbO-BO fluxes. The scintillation properties of the proposed composites, YAG:Ce film/LuAG:Sc film/LuAG:Ce crystal and YAG:Ce film/LuAG:Ce film/LuAG:Sc crystal, were investigated under excitation by radiation with α-particles from a Pu source, β-particles from Sr sources and γ-rays from a Cs source. Considering the properties of the mentioned composite scintillators, special attention was paid to the ability of simultaneous separation of the different components of mixed ionizing radiation containing the mentioned particles and quanta using scintillation decay kinetics. The differences in scintillation decay curves under α- and β-particle and γ-ray excitations were characterized using figure of merit (FOM) values at various scintillation decay intensity levels (1/e, 0.1, 0.05, 0.01).

摘要

在本研究中，我们提出了新型三层复合闪烁体，旨在同时检测不同的电离辐射成分。这些闪烁体基于掺Ce和Sc离子的LuAG和YAG石榴石外延结构。使用基于PbO-BO助熔剂的熔体溶液通过液相外延法生长了这些复合闪烁体的样品，其中包含不同厚度的YAG:Ce和LuAG:Ce单晶薄膜以及LuAG:Sc单晶衬底。在来自钚源的α粒子、来自锶源的β粒子和来自铯源的γ射线的辐射激发下，研究了所提出的复合材料YAG:Ce薄膜/LuAG:Sc薄膜/LuAG:Ce晶体和YAG:Ce薄膜/LuAG:Ce薄膜/LuAG:Sc晶体的闪烁特性。考虑到上述复合闪烁体的特性，特别关注了利用闪烁衰减动力学同时分离包含上述粒子和量子的混合电离辐射不同成分的能力。在α粒子、β粒子和γ射线激发下的闪烁衰减曲线差异，使用不同闪烁衰减强度水平（1/e、0.1、0.05、0.01）下的品质因数（FOM）值进行了表征。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/fdee51832daf/materials-17-04025-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/fa9a13bb48e0/materials-17-04025-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/41dc4eecec80/materials-17-04025-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/da7f37c9a057/materials-17-04025-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/8d39a698895c/materials-17-04025-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/b8b13ced1f89/materials-17-04025-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/f5770833cfee/materials-17-04025-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/143512a9f1e2/materials-17-04025-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/f771af9f807e/materials-17-04025-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/ccf74b205939/materials-17-04025-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/fdee51832daf/materials-17-04025-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/fa9a13bb48e0/materials-17-04025-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/41dc4eecec80/materials-17-04025-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/da7f37c9a057/materials-17-04025-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/8d39a698895c/materials-17-04025-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/b8b13ced1f89/materials-17-04025-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/f5770833cfee/materials-17-04025-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/143512a9f1e2/materials-17-04025-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/f771af9f807e/materials-17-04025-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/ccf74b205939/materials-17-04025-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/ca4d/11356001/fdee51832daf/materials-17-04025-g010.jpg

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本文引用的文献

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