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Enhancement of the luminescent and optical properties of ceramic Ce:GAGG after surface treatment with phosphoric acid
- Issue Date
- 18-1월-2021
- Publisher
- OPTICAL SOC AMER
- Citation
- OPTICS EXPRESS, v.29, no.2, pp.751 - 760
- Indexed
- SCIE
SCOPUS
- Journal Title
- OPTICS EXPRESS
- Volume
- 29
- Number
- 2
- Start Page
- 751
- End Page
- 760
- ISSN
- 1094-4087
- Abstract
- Surface modification of ceramic Ce-doped Gd3Al2Ga3O12 (Ce:GAGG) was performed by exposing small samples to anhydrous phosphoric acid (H3PO4) under different conditions (temperature and duration) to investigate the effects of chemical polishing treatment. When coupled to a photomultiplier tube (PMT) and used as a radiation detector, chemical treatment for 3 min at 190 degrees C improved the light (signal) output by 24.8 degrees 70 and energy resolution by 2.5% (percentage point), respectively. This can be attributed to a reduction in surface roughness that enhanced optical properties. Thus, chemical polishing could be a low-cost alternative to mechanical polishing especially for small or complex shaped ceramic scintillators. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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Collections - Graduate School > Department of Bioengineering > 1. Journal Articles
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