University of Tennessee Research Foundation

Hua Wei

Charles L Melcher

Mariya Zhuravleva

Luis Stand

Mixed halide scintillation materials of the general formula ABMX'X&#x2033;, where 0&#x2264;y&#x2264;1, 0.05&#x2264;w&#x2264;1, A may be an alkali metal, B may be an alkali earth metal, and X&#x2032; and X&#x2033; may be two different halogen atoms, and of the general formula ABMX&#x2032;X&#x2033;, where 0&#x2264;y&#x2264;1, 0.05&#x2264;w&#x2264;1, A maybe an alkali metal, B may be an alkali earth metal, and X&#x2032; and X&#x2033; are two different halogen atoms. The scintillation materials of formula (1) include a divalent external activator, M, such as Euor Yb. The scintillation materials of formula (2) include a monovalent external activator, M, such as Tl, Naand In.

Mixed halide scintillators radiation detection

Mixed halide scintillators for radiation detection

The present disclosure is directed to a group of newly discovered intrinsic scintillation compounds. As intrinsic scintillators, these compounds do not require an external activator as a dopant. The new scintillators may include members of two elpasolite families with the general exemplary formulas of ABMXX'and AMXX&#x2032;, (0&#x3c;y&#x3c;6). Component A may include at least one element selected from the group consisting alkali elements and thallium (Li, Na, K, Rb, Cs and Tl); Component B may include at least one element, different from the at least one element of component A, selected from the group consisting alkali elements (Li, Na, K, Rb, and Cs); Component M may include at least one element selected from the group consisting tri-valence elements (La, Gd, Lu, Bi, Y); Component X may include at least one element selected from the group consisting halide elements (F, Cl, Br and I); Component X&#x2032; may include at least one element, different from the at least one element of component X, selected from the group consisting halide elements (F, Cl, Br and I). The value of y may be in a range between 0 and 6 non-inclusively (i.e. 0&#x3c;y&#x3c;6, or y={1, 2, 3, 4, 5}).

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Knoxville, TN, United States of America

Hua Wei