Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce
New emerging high-energy radiation detection techniques are based on the use of rare-earth ion doped materials. There is a great demand for new inorganic scintillators for medical applications, including X-ray and g radiation detection. In these applications, the new scintillating...
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2018-05-01
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doaj-454f8b2962d049acba22125f4bed0f602021-04-02T07:53:41ZengPensoft PublishersModern Electronic Materials2452-17792018-05-014171210.3897/j.moem.4.1.3324033240Optical characteristics of single crystal Gd3Al2Ga3O12 : CeNina S. Kozlova0Oleg A. Buzanov1Valentina M. Kasimova2Anna P. Kozlova3Evgeniya V. Zabelina4National University of Science and Technology MISiSJSC Fomos-MaterialsNational University of Science and Technology MISiSNational University of Science and Technology MISiSNational University of Science and Technology MISiS New emerging high-energy radiation detection techniques are based on the use of rare-earth ion doped materials. There is a great demand for new inorganic scintillators for medical applications, including X-ray and g radiation detection. In these applications, the new scintillating materials must comply with the main requirements such as high optical quality, high light yield, short response time etc. Materials satisfying these requirements include Gd3Al2Ga3O12 : Ce (GAGG : Ce) scintillating single crystals. By now the optical characteristics of GAGG : Ce have been studied insufficiently. We have therefore measured the spectral reflectance and transmittance characteristics of these crystals using optical spectroscopy in the 200–750 nm range. We have also measured the absorbance and refractive indices and the extinction coefficients, and assessed the optical band gap for GAGG : Ce crystals. For measuring the refractive indices, we have used two spectrophotometric methods, i.e. by the measured Brewster angle and by the reflectance for low incidence angles, i.e., close to the normal. Based on the results we have drawn up the dispersion functions of the refractive indices. https://moem.pensoft.net/article/33240/download/pdf/ |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nina S. Kozlova Oleg A. Buzanov Valentina M. Kasimova Anna P. Kozlova Evgeniya V. Zabelina |
spellingShingle |
Nina S. Kozlova Oleg A. Buzanov Valentina M. Kasimova Anna P. Kozlova Evgeniya V. Zabelina Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce Modern Electronic Materials |
author_facet |
Nina S. Kozlova Oleg A. Buzanov Valentina M. Kasimova Anna P. Kozlova Evgeniya V. Zabelina |
author_sort |
Nina S. Kozlova |
title |
Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce |
title_short |
Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce |
title_full |
Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce |
title_fullStr |
Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce |
title_full_unstemmed |
Optical characteristics of single crystal Gd3Al2Ga3O12 : Ce |
title_sort |
optical characteristics of single crystal gd3al2ga3o12 : ce |
publisher |
Pensoft Publishers |
series |
Modern Electronic Materials |
issn |
2452-1779 |
publishDate |
2018-05-01 |
description |
New emerging high-energy radiation detection techniques are based on the use of rare-earth ion doped materials. There is a great demand for new inorganic scintillators for medical applications, including X-ray and g radiation detection. In these applications, the new scintillating materials must comply with the main requirements such as high optical quality, high light yield, short response time etc. Materials satisfying these requirements include Gd3Al2Ga3O12 : Ce (GAGG : Ce) scintillating single crystals. By now the optical characteristics of GAGG : Ce have been studied insufficiently. We have therefore measured the spectral reflectance and transmittance characteristics of these crystals using optical spectroscopy in the 200–750 nm range. We have also measured the absorbance and refractive indices and the extinction coefficients, and assessed the optical band gap for GAGG : Ce crystals. For measuring the refractive indices, we have used two spectrophotometric methods, i.e. by the measured Brewster angle and by the reflectance for low incidence angles, i.e., close to the normal. Based on the results we have drawn up the dispersion functions of the refractive indices.
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url |
https://moem.pensoft.net/article/33240/download/pdf/ |
work_keys_str_mv |
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