Characterization of Tl2NaYCl6:Ce Scintillation Crystals as Gamma-Ray Detectors
Abstract
In this paper the growth of a 16mm diameter Ce-doped Tl2NaYCl6 and its characterization as a gamma-ray detector are reported. With a 16 mm dia. x 8 mm cylindrical sample, energy resolution of 4.1% (FWHM) at 662 keV and light yield of 27,800ph/MeV are measured. Decay times of 91 ns (34%), 462 ns (52%), and 2.1 microseconds (15%) are calculated. The x-ray excited emission spectrum exhibits bands that are similar to other Tl-based elpasolite scintillators like Tl2NaYCl6:Ce.
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