Micro-ion beam-induced luminescence spectroscopy for evaluating SiAlON scintillators

被引：2
|
作者：
Kada, W. [1 ]
Satoh, T. [2 ]
Yamada, S. [3 ]
Koka, M. [4 ]
Yamada, N. [2 ]
Miura, K. [1 ]
Hanaizumi, O. [1 ]
机构：
[1] Gunma Univ, Fac Sci & Technol, 1-5-1 Tenjin Cho, Kiryu, Gunma 3768515, Japan
[2] Natl Inst Quantum & Radiol Sci & Technol QST, Takasaki Adv Radiat Res Inst TARRI, Quantum Beam Sci Res Directorate, 1233 Watanuki Machi, Takasaki, Gunma 3701292, Japan
[3] Denka Co Ltd, Res & Dev Dept, Chuo Ku, 2-1-1 Nihonbashi Muromachi, Tokyo 1038338, Japan
[4] Beam Operat Co Ltd, 1233 Watanukicho, Takasaki, Gunma 3701292, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2020年 / 477卷 / 477期
关键词：
IBIL; SiAlON; Single grain; Spectroscopy; Imaging; PHOTOLUMINESCENCE PROPERTIES; IONOLUMINESCENCE; PROTON; SYSTEM; DAMAGE; PIXE;
D O I：
10.1016/j.nimb.2019.10.001
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Ion beam-induced luminescence (IBIL) spectroscopy was used for luminescent material characterization and analysis for the investigation of new scintillator families. Under continuous 3 MeV proton microbeam irradiation, the crystal structures of alpha-SiAlON:Eu, beta-SiAlON:Eu, and CaAlSiN3 (CASN) emitted bright luminescence at peak wavelengths of 605, 540, and 670 nm, respectively. As the irradiation progressed, the IBIL intensity of the conventional ZnS:Ag scintillator decreased sharply, whereas that of the SiAlONs and CASN remained within the detection limit. IBIL spectroscopy was performed on individual grains of the SiAlON scintillators. IBIL imaging and spectroscopy of two grains of beta-SiAlON:Eu showed that the main peak in the IBIL spectrum of beta-SiAlON:Eu obtained from a large-area beam scan consisted of several small peaks, which were observed in spectra from individual grains. Our experimental results suggest that microscopic spectroscopy of IBIL is an effective tool for microscopic material characterization of luminescent targets.
引用
收藏
页码：66 / 72
页数：7
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