New scintillator 6Li2CaSiO4:Eu2+for neutron sensitive screens

被引:7
|
作者
Komendo, I. [1 ,2 ,6 ]
Bondarev, A. [3 ]
Fedorov, A. [1 ,3 ]
Dosovitskiy, G. [1 ,2 ]
Gurinovich, V. [4 ]
Kazlou, D. [3 ]
Kozhemyakin, V. [4 ]
Mechinsky, V. [1 ,3 ]
Mikhlin, A. [1 ]
Retivov, V. [1 ]
Schukin, V. [1 ]
Timochenko, A. [5 ]
Murashev, M. [2 ]
Zharova, A. [1 ]
Korzhik, M. [2 ,3 ]
机构
[1] NRC Kurchatov Inst IREA, Moscow, Russia
[2] NRC Kurchatov Inst, Moscow, Russia
[3] Belarusian State Univ, Inst Nucl Problems, Minsk, BELARUS
[4] ATOMTEX SPE, Minsk, BELARUS
[5] Belarusian State Univ, Phys Dept, Minsk, BELARUS
[6] Bogorodskiy Val 3, Moscow 107076, Russia
关键词
Scintillator; Europium; Ionizing radiation; Screen detector; Neutron; Lithium calcium silicate; Scintillating screen; PHOSPHOR; LUMINESCENCE; CRYSTALS;
D O I
10.1016/j.nima.2022.167637
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
In the current study scintillation properties of a recently developed 6Li2CaSiO4:Eu2+ polycrystalline scintillation material have been evaluated. Samples of thin layers of scintillator with thicknesses of 54, 120, and 180 mu m were prepared and the scintillation light yield of the samples under alpha particle excitation was estimated to be 12000 ph/MeV. The material with a layer thickness of 180 mu m shows similar sensitivity to the commercial ZnS:Ag-6LiF based 470 mu m Scintacor ND screen to moderated neutrons and has less sensitivity to the gamma -quanta. Scintillation kinetics has been estimated to be five times faster than that provided by ZnS:Ag, which makes the reported material prospective for high count rate measurements in pulse mode.
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页数:7
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