TL response evaluation for UVA and UVC of LaAlO₃:Pr³⁺ powder

Abstract Thermoluminescence properties of lanthanum aluminum oxide (LaAlO3) doped with optically active rare earth ions have been investigated for ultraviolet dosimetry purposes. LaAlO 3 :Pr 3+ powder samples were 2% Pr , the first research they show two thermoluminescent (TL) peaks at 215±5 °C and 340±4 which can be sensitized after 1 min to 12 UVA exposure. The material shows TL output linear response lamp in 365 nm wavelength light. On other hand, that irradiated a UVC 254 nm, it also one peak shoulder, maximum range goes from 195 220 °C, exposure time was varied 5 30 seconds shoulder remains stable 345± 8 ° C. experiments demonstrates : powders are very attractive as dosimeters.