Abstracts 2008

Abstract of Publication No. 589

M. Danang Birowosuto, Pieter Dorenbos, G. Bizarri, Carel W. E. van Eijk, Karl W. Krämer and H. U. Güdel
Temperature Dependent Scintillation and Luminescence Characteristics of GdI3: Ce3+
IEEE Trans. Nucl. Sci. 55, 1164-1169 (2008)      Full Text (PDF)      DOI-Link     

Abstract: We investigated scintillation and luminescence properties of GdI3:1% Ce3+. It shows a light yield of 47000 photons/MeV recorded with a Hamamatsu R1791 photomultiplier tube (PMT). Using an Advanced Photonix 630-70-73-510 avalanche photodiode (APD), the light output of this sample is 44000 electron-hole pairs/MeV. The best energy resolution at 662 keV of 4.7% was recorded at 10C with the APD with a shaping time of 0.5 ms. At room temperature (RT), the g-scintillation decay curve of GdI3:1% Ce3+ shows a fast component of 45 ns, which is the same as the intrinsic Ce decay time, and that contributes 70% to the total light yield. GdI3:1% Ce3+ shows no afterglow at RT. Temperature dependence ranging from 80 to 600 K of X-ray excited emission spectra, pulse height spectra, scintillation decay curves and optically excited decay curves of Ce3+ emission are also presented.

Last modified: 13.12.11 by Gabriela Frei