The Effect of Impurities on the Thermoluminescence of LiF

Abstract

Effects of impurities such as Mg⁺⁺, Mn⁺⁺, Ag⁺, Cl^-, and NaCI on the thermoluminescence of LiF were studied. It was found that some combinations of impurities, Mn⁺⁺ and Ag⁺, Mg⁺⁺ and Ag⁺, and Ag⁺ and Cl^- enhanced the yield of thermoluminescence of LiF remarkably, that the thermoluminescence of LiF-Ag-Mg was enhanced by addition of NaCl, and that LiF doped with Mn⁺⁺ and Ag⁺ was given the thermoluminescence yield almost as high as that of Harshaw TLD-700. Suggestions were made on the mechanism of sensitization of thermoluminescence.