IP Library › Granted Patent US 9,053,832
Granted Patent B2
US 9,053,832 · App. 13/272,152 · Granted Jun 9, 2015

Lanthanide doped strontium-barium cesium halide scintillators

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Quick Facts
Patent No.
US 9,053,832
App. No.
13/272,152
Granted
Jun 9, 2015
Kind
B2
Abstract

The present invention provides for a composition comprising an inorganic scintillator comprising an optionally lanthanide-doped strontium-barium, optionally cesium, halide, useful for detecting nuclear material.

Claims (21)

1. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 1 z (I); wherein X is a halogen, or a mixture thereof; Ln 1 is a lanthanide with a valence of 2+; v has a value having the range 0<v≦4; w has a value having the range 2≦w≦6; x has a value having the range 0<x≦2; y has a value having the range 0<y≦2; z has a value having the range 0≦z≦2; and, x+y+z=1 or 2; wherein the inorganic scintillator is a single crystal having at least one dimension of a length of at least 1 mm, wherein the halogen is Cl or Br.

2. The inorganic scintillator of claim 1 , wherein the inorganic scintillator has the formula: Sr x Ba y Cs v X w :Ln 1 z (III); wherein X is a halogen, or a mixture thereof; Ln 1 is a lanthanide with a valence of 2+; v=1; w=3; x has a value having the range 0<x≦1; y has a value having the range 0<y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1.

3. The inorganic scintillator of claim 1 , wherein the inorganic scintillator is a single crystal having at least one dimension of a length of at least 5 mm.

4. An inorganic scintillator haying the formula: Sr x Ba y Cs v X w :Ln 1 z (II); wherein X is a halogen, or a mixture thereof; Ln 1 is a lanthanide with a valence of 2+; v=1; w=5; x has a value having the range 0<x≦2; y has a value having the range 0<y≦2; z has a value having the range 0z≦2; and, x+y+z=2; wherein the inorganic scintillator is a single crystal having at least one dimension of a length of at least 1 mm.

5. An inorganic scintillator haying the formula: Sr x Ba y Cs v X w :Ln 1 z (IV); wherein X is a halogen, or a mixture thereof; Ln 1 is a lanthanide with a valence of 2+; v=2; w=4; x has a value having the range 0<x≦1; y has a value having the range 0<y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1; wherein the inorganic scintillator is a single crystal having at least one dimension of a length of at least 1 mm.

6. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 1 z (V); wherein X is a halogen, or a mixture thereof; Ln 1 is a lanthanide with a valence of 2+; v=4; w=6; x has a value having the range 0≦x≦1; y has a value having the range 0≦y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1.

7. The inorganic scintillator of claim 6 , wherein the halogen is Cl, Br, or I, or a mixture thereof.

8. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 2 z (VIII); wherein X is a halogen, or a mixture thereof; Ln 2 is a lanthanide with a valence of 3+; v=1−z; w=5; x has a value having the range 0≦x≦2; y has a value having the range 0≦y≦2; z has a value having the range 0≦z≦1; and, x+y+z=2.

9. The inorganic scintillator of claim 8 , wherein the halogen is Cl, Br, or I, or a mixture thereof.

10. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 2 z (IX); wherein X is a halogen, or a mixture thereof; Ln 2 is a lanthanide with a valence of 3+; v=1−z; w=3; x has a value having the range 0≦x≦1; y has a value having the range 0≦y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1.

11. The inorganic scintillator of claim 10 , wherein the halogen is Cl, Br, or I, or a mixture thereof.

12. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 2 z (X); wherein X is a halogen, or a mixture thereof; Ln 2 is a lanthanide with a valence of 3+; v=2−z; w=4; x has a value having the range 0≦x≦1; y has a value having the range 0≦y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1.

13. The inorganic scintillator of claim 12 , wherein the halogen is Cl, Br, or I, or a mixture thereof.

14. An inorganic scintillator having the formula: Sr x Ba y Cs v X w :Ln 2 z (XI); wherein X is a halogen, or a mixture thereof; Ln 2 is a lanthanide with a valence of 3+; v=4−z; w=6; x has a value having the range 0≦x≦1; y has a value having the range 0≦y≦1; z has a value having the range 0≦z≦1; and, x+y+z=1.

15. The inorganic scintillator of claim 14 , wherein the halogen is Cl, Br, or I, or a mixture thereof.

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

17. A gamma ray detector comprising the inorganic scintillator of claim 6 .

18. A gamma ray detector comprising the inorganic scintillator of claim 8 .

19. A gamma ray detector comprising the inorganic scintillator of claim 10 .

20. A gamma ray detector comprising the inorganic scintillator of claim 12 .

21. A gamma ray detector comprising the inorganic scintillator of claim 14 .

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 16, 2012
From: GUNDIAH, GAUTAM
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 028054/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 13, 2012
From: BIZARRI, GREGORY; BOURRET-COURCHESNE, EDITH; DERENZO, STEPHEN E.; BORADE, RAMESH B.; YAN, ZEWU; HANRAHAN, STEPHEN M.; CHAUDHRY, ANURAG; CANNING, ANDREW
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 028046/0316 →
CONFIRMATORY LICENSE Recorded Mar 15, 2012
From: REGENTS OF THE UNIVERSITY OF CALIFORNIA, THE
To: ENERGY, UNITED STATE DEPARTMENT OF
Reel/Frame 027882/0852 →