Synthesis and Investigation of Thermoluminescence Properties of Barium Sulphate Doped with Dyspersium (BaSO4:Dy)

BaSO4: Dy nanocrystalline is prepared by the co-precipitation method. The shape and morphology of the prepared nanocrystalline is observed using a Energy- dispersive X-ray spectroscopy (EDX) and XRD pattern. The prepared pellets are exposed to the gamma radiation emitted by a 60Co source at room temperature. Then the themoluminescence (TL) properties of BaSO4: Dy nanocrystalline pellets are studied. Results show that thermoluminescence response is increased by increasing the 60Co dose rate so that the BaSO4:Dy has a linear response in a range of 0.1-1 kGy.