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Processing of Porous NITI Preforms for NITI/MG Composites

100%
Kucharczyk A., Naplocha K., Tomanik M.
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issue 2
2
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The Influence of Sub-Wavelength Effective Refractive Index Layer on the Transmittance of LYSO Scintillator

76%
Modrzyński P., Olejniczak A., Zięba A., Kunicki P., Tomanik M., Wielebski M.
Acta Physica Polonica A
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2017
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vol. 131
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issue 6
1565-1569
EN
From various types of scintillating materials lutetium-yttrium oxyorthosilicate (LYSO) has the highest luminosity and the greatest potential of application in high-energy radiation detectors. Due to the small critical angle of total internal reflection the enhancement of the extraction of light outside a scintillator is a challenge. We study numerically the influence of the effective refractive index layer on the transmittance of LYSO crystal. It is possible to realize such layer by sub-wavelength patterning of crystal surface using for example focused ion beam. The enhancement of transmittance of LYSO crystal up to 100% as well as the possibility to tune the positions of transmittance maxima have been shown.
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