Novel Scintillation Material—ZnO Transparent Ceramics
| Autor: | E. I. Gorokhova, S. S. Kozlovskii, Piotr A. Rodnyi, K. A. Chernenko, V. M. Khanin, I. V. Khodyuk |
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| Rok vydání: | 2012 |
| Předmět: |
Condensed Matter - Materials Science
Nuclear and High Energy Physics Scintillation Physics - Instrumentation and Detectors Photoluminescence Materials science Transparent ceramics Doping Analytical chemistry Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences chemistry.chemical_element Instrumentation and Detectors (physics.ins-det) Nuclear Energy and Engineering chemistry visual_art visual_art.visual_art_medium Lithium Ceramic Nuclear Experiment (nucl-ex) Electrical and Electronic Engineering Gallium Luminescence Nuclear Experiment |
| Zdroj: | IEEE Transactions on Nuclear Science. 59:2152-2155 |
| ISSN: | 1558-1578 0018-9499 |
| DOI: | 10.1109/tns.2012.2189896 |
| Popis: | ZnO-based scintillation ceramics for application in HENPA LENPA analyzers have been investigated. The following ceramic samples have been prepared: undoped ones (ZnO), an excess of zinc in stoichiometry (ZnO:Zn), doped with gallium (ZnO:Ga) and lithium (ZnO:Li). Optical transmission, x-ray excited emission, scintillation decay and pulse height spectra were measured and analyzed. Ceramics have reasonable transparency in visible range (up to 60% for 0.4 mm thickness) and energy resolution (14.9% at 662 keV Cs137 gamma excitation). Undoped ZnO shows slow (1.6 {\mu}s) luminescence with maximum at 2.37 eV and light yield about 57% of CsI:Tl. ZnO:Ga ceramics show relatively low light yield with ultra fast decay time (1 ns). Lithium doped ceramics ZnO:Li have better decay time than undoped ZnO with fair light yield. ZnO:Li ceramics show good characteristics under alpha-particle excitation and can be applied for the neutral particle analyzers. Comment: 4 pages, 8 figures, research covered in this paper was presented at SCINT2011 conference as a poster, submitted for publication at IEEE Trans. Nucl. Sci |
| Databáze: | OpenAIRE |
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