Fabrication and 2D-mapping of Pr: Lu3Al5O12 Scintillator Ceramics with High Light Yield and Fast Decay Time

doi:10.3724/SP.J.1077.2014.13389

Journal of Inorganic Materials ›› 2014, Vol. 29 ›› Issue (5): 534-538.DOI: 10.3724/SP.J.1077.2014.13389

• Research Paper • Previous Articles Next Articles

Fabrication and 2D-mapping of Pr: Lu₃Al₅O₁₂ Scintillator Ceramics with High Light Yield and Fast Decay Time

SHEN Yi-Qiang^{1, 2}, SHI Yun¹, PAN Yu-Bai¹, FENG Xi-Qi¹, WU Le-Xiang¹, KOU Hua-Min¹, ZHANG Zhi-Ming³, WEI Long³

(1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050,China; 2. University of Chinese Academy of Sciences, Beijing 100049,China; 3. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049,China)

Received:2013-08-07 Revised:2013-12-03 Published:2014-05-20 Online:2014-04-24
About author:SHEN Yi-Qiang. E-mail: shenyiqiang@student.sic.ac.cn
Supported by:
National Natural Science Foundation of China (11005139, 51172262); Innovationed Foundation of Shanghai Insititute of Ceramics, Chinese Academy of Sciences (Y32ZC3130G); Science and Technology Foundation of Shanghai (11DZ1140302)

Abstract

Abstract: Pr:LuAG ceramics were fabricated by a solid state reaction method using vacuum sintering with or without sintering aids (TEOS and MgO). The inline transmittance of the Pr:LuAG ceramics sintered with sintering aids reached ~80% in visible light range, while the ceramics without sintering aids were 5 times higher light output (1196 pe/MeV) and faster decay (73% fast decay component) although lower transmittance in visible light region (~70%, 2.0 mm thick) comparatively with the energy resolution of 8.4%. The Pr:LuAG cermics were cut and polished to 1.9 mm×1.9 mm× 1.0 mm pixels to form ceramics arrays, by using the 4×4 ceramics arrays, 2D mapping was accomplished. The position signals were clearly identified, which were better than that of commercial BGO (Bi₄Ge₃O₁₂) crystals. It is proved that Pr:LuAG ceramics is promising in PET (Positron Emission Tomography) imaging.

Key words: Pr:LuAG ceramics, annealing, scitillation performance, mapping

CLC Number:

TQ174

SHEN Yi-Qiang, SHI Yun, PAN Yu-Bai, FENG Xi-Qi, WU Le-Xiang, KOU Hua-Min, ZHANG Zhi-Ming, WEI Long. Fabrication and 2D-mapping of Pr: Lu₃Al₅O₁₂ Scintillator Ceramics with High Light Yield and Fast Decay Time[J]. Journal of Inorganic Materials, 2014, 29(5): 534-538.

References

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Fabrication and 2D-mapping of Pr: Lu₃Al₅O₁₂ Scintillator Ceramics with High Light Yield and Fast Decay Time

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