Abstracts 1997

Abstract of Publication No. 298

P. Dorenbos, J. C. van't Spijker, O. W. V. Frijns, C. W. E. van Eijk, K. Krämer, H. U. Güdel and A. Ellens
Scintillation properties of RbGd2Br7: Ce3+ crystals; fast, efficient, and high density scintillators
Nucl. Instr. Methods Phys. Res. B 132, 728-731 (1997)      Full Text (PDF)      DOI-Link     

Abstract: The scintillation properties of RbGd2Br7 crystal (r 4.7 g/cm3) doped with Ce3+ concentrations of 1 and 5 mol% studied under X-ray and g-quanta excitation are presented and compared with the properties of NaI(Tl) and other scintillators. For a sample doped with 5 mol% Ce, a light yield of about 55000 photons/MeV with a main decay time of 60 ns was measured. With a photomultiplier tube, an energy resolution of 3.8% (FWHM) for the 662 keV full absorption peak has been observed.

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