Ternary metal halide scintillators

摘要

Metal halide scintillators are described. More particularly, the scintillators include doped (e.g., europium-doped) ternary metal halides, such as those of the formulas A2BX4 and AB2X5, wherein A is an alkali metal, such as Li, Na, K, Rb, Cs or any combination thereof; B is an alkali earth metal, such as Be, Mg, Ca, Sr, Ba or any combination thereof; and X is a halide, such as Cl, Br, I, F or any combination thereof. Radiation detectors comprising the novel metal halide scintillators and other ternary metal halides, such as those of the formulas A2EuX4 and AEu2X5, wherein A is an alkali metal and X is a halide, are also described.

主权项

1. A scintillator material comprising one of Formulas (I), (III), (IV), (V), or (VI):
A2B(1-y)LyX4  (I); A′2(1-y)L′2yBX4  (III); A′(1-y)L′yB2X5  (IV); A″2(1-y)L″2yBX4  (V); or A″(1-y)L″yB2X5  (VI); wherein:
0.0001≦y≦0.5;A is one or more alkali metal;A′ is one or more of the group consisting of Li, K, Rb, and Cs;A″ is Na or a combination of Na and one or more additional alkali metal;B is one or more alkali earth metal;L is selected from the group consisting of Eu, Ce, Tb, Yb, and Pr;L′ is selected from the group consisting of Tl, In, and Na;L″ is selected from the group consisting of Tl and In; andX is one or more halide.