Granted Patent B2

US 10,795,032 · App. 14/731,302 · Granted Oct 6, 2020

Inventors: Gregory A. Bizarri (Berkeley, CA); Edith D. Bourret-Courchesne (Berkeley, CA); Stephen E. Derenzo (Pinole, CA); Gautam Gundiah (Berkeley, CA); Stephen M. Hanrahan (Berkeley, CA)

Assignee: The Regents of the University of California

G01T1/2023C09K11/7733G21K4/00G21K2004/06

Abstract

Claims (18)

1. An inorganic scintillator having the formula: Ba 1-y X 1 x X 2 2-x :Ln 1 y (VIf); wherein X 1 is CI, Br, or I, X 2 is CI, Br, or I, X 1 and X 2 are not the same halogen element, Ln 1 is a lanthanide with a valence of 2+, x has a value having the range 0.1≤x<2, and y has a value having the range 0<y≤1 wherein the inorganic scintillator is a single crystal having at least one dimension of a length of at least 1 mm, or a length at least sufficient to stop or absorb gamma-radiation.

2. The inorganic scintillator of claim 1 , wherein y has a value having the range 0.001≤y≤1.

3. The inorganic scintillator of claim 2 , wherein y has a value having the range 0.01≤y≤1.

4. The inorganic scintillator of claim 3 , wherein y has a value having the range 0.1≤y≤1.

5. The inorganic scintillator of claim 2 , wherein y has a value having the range 0.001≤y≤0.5.

6. The inorganic scintillator of claim 5 , wherein y has a value having the range 0.01≤y≤0.5.

7. The inorganic scintillator of claim 6 , wherein y has a value having the range 0.1≤y≤0.5.

8. The inorganic scintillator of claim 1 , wherein the Ln 1 is Eu 2+ .

9. The inorganic scintillator of claim 1 , wherein the X 1 is Br, and X 2 is I or Cl.

10. The inorganic scintillator of claim 9 , wherein the X 1 is Br, and X 2 is Cl.

11. The inorganic scintillator of claim 9 , wherein the X 1 is Br, and X 2 is I.

12. The inorganic scintillator of claim 10 , wherein Ln 1 is Eu 2+ .

13. The inorganic scintillator of claim 12 , wherein x has a value having the range 0.3≤x≤1.7.

14. The inorganic scintillator of claim 13 , wherein x has a value having the range 0.5≤x≤1.5.

15. The inorganic scintillator of claim 14 , wherein x has a value having the range 0.7≤x≤1.3.

16. The inorganic scintillator of claim 15 , wherein x has a value having the range 0.9≤x≤1.1.

17. The inorganic scintillator of claim 16 , wherein x is 1.

18. A gamma ray detector comprising the inorganic scintillator of claim 1 .

Assignments (2)

Continuity (10)