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
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.