Paper Title:
Luminescence and Scintillation Properties of Ce-Doped LYSO and YSO Crystals
  Abstract

The luminescence and gamma-ray detection properties of the new cerium-doped rare-earth scintillator lutetium-yttrium oxyorthosilicate ( Lu1.95Y0.05SiO5:Ce, LYSO:Ce) were investigated and compared to those of cerium-doped yttrium oxyorthosilicate ( Y2SiO5:Ce, YSO:Ce) crystal. The light yield and energy resolution were measured using photomultiplier tube (PMT) readout. The non-proportionality of the light yield and energy resolution versus γ-ray energy were measured and the intrinsic resolution of the crystals was calculated. In spite of significant progress in light yield and luminescence properties, the energy resolution of LYSO:Ce appears to still suffer from an excess variance in the number of scintillation photons. The mass attenuation coefficient of LYSO:Ce and YSO:Ce for 662 keV gamma rays was also measured by transmission method and compared with the theoretical values calculated by WinXCom program.

  Info
Periodical
Advanced Materials Research (Volumes 199-200)
Edited by
Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim
Pages
1796-1803
DOI
10.4028/www.scientific.net/AMR.199-200.1796
Citation
C. Wanarak, W. Chewpraditkul, A. Phunpueok, J. Kaewkhao, "Luminescence and Scintillation Properties of Ce-Doped LYSO and YSO Crystals", Advanced Materials Research, Vols. 199-200, pp. 1796-1803, 2011
Online since
February 2011
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$32.00
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