Tl-doped sodium iodide NaI(Tl)ï¼?It is most widely used in all the scintillation materials especially used in Environmental monitoringï¼?radiation monitoringï¼?oil exploration and nuclear medicine. It has the maximum light output in all the scintillation crystals. Typesï¼?Blank and Aluminum encapsulation stock size: Dia:1.0â??xL1.0â??, Dia: 2.0â??xL2.0â?? Max size for cylinder: Dia:150mmxL400mm Max size for rectangular solid: 100x100x400mm Property of our NaI(Tl) crystal: Density (g/cm3) 3.67 Light output(%NaI:Tl) 100 Hygroscopicity Deliquescent Energy Resolution (%) 7.3 Emission wavelength(nm) 415 Hardness (Mohs) 2