“…The Tl:CsI crystal is a well-known technical inorganic scintillator [21]. Light yield of stilbene crystals was determined by the compton edge at half-amplitude c-spectrum [20]. The standard samples for measuring ALY were (a) technical detector (hermetic and packed with MgO reflector) stilbene-based 10 Â 10 mm; (b) stilbene crystal 9 Â 3 mm, packed with fluoroplastic Âreflector; (c) single crystal Tl:CsI 10 Â 1.5 mm with fluoroplastic reflector.…”