Fluoride single crystal for detecting radiation, scintillator and radiation detector using the single crystal, and method for detecting radiation
View Patent ↗The invention provides a fluoride single crystal for detecting radiation having high luminescence intensity, a scintillator, a radiation detector employing the single crystal and a method for detecting radiation. The fluoride single crystal for detecting radiation contains Ce and at least one element (R 1 ) of Lu and Gd, wherein the single crystal is represented by Ce 1-x R 1 x F 3 (0.001≦x≦0.5).
1. A fluoride single crystal for detecting radiation comprising Ce and, wherein the single crystal is represented by Ce 1-x Lu x F 3 (0.001≦x ≦0.5).
2. The fluoride single crystal for detecting radiation according to claim 1 , which further contains at least one element (R 2 ) selected from among Sc, Y, and La and is represented by (Ce 1-x Lu x ) 1-y R 2 y F 3 (0.001≦x≦0.5; y≦0.95).
3. A radiation detector comprising a scintillator composed of a fluoride single crystal for detecting radiation as recited in claim 2 , and a light detector detecting light emitted from the scintillator.
4. A method for detecting radiation comprising applying radiation to a fluoride single crystal as recited in claim 2 , thereby emitting luminescence, and detecting the emitted luminescence.
5. A radiation detector comprising a scintillator composed of a fluoride single crystal for detecting radiation as recited in claim 1 , and a light detector detecting light emitted from the scintillator.
6. A method for detecting radiation comprising applying radiation to a fluoride single crystal as recited in claim 1 , thereby emitting luminescence, and detecting the emitted luminescence.
7. The fluoride single crystal for detecting radiation according to claim 1 , which further contains Gd, wherein the single crystal is represented by Ce 1-x R 1 x F 3 (0.001≦x ≦0.5, and R 1 represents Lu and Gd).
8. The fluoride single crystal for detecting radiation according to claim 7 , which further contains at least one element (R 2 ) selected from among Sc, Y, and La and is represented by (Ce 1-x R 1 x ) 1-y R 2 y F 3 (0.001≦x ≦0.5;y≦0.95).
9. A radiation detector comprising a scintillator composed of a fluoride single crystal for detecting radiation as recited in claim 8 , and a light detector detecting light emitted from the scintillator.
10. A method for detecting radiation comprising applying radiation to a fluoride single crystal as recited in claim 8 , thereby emitting luminescence, and detecting the emitted luminescence.
11. A radiation detector comprising a scintillator composed of a fluoride single crystal for detecting radiation as recited in claim 7 , and a light detector for detecting light emitted from the scintillator.
12. A method for detecting radiation comprising applying radiation to a fluoride single crystal as recited in claim 7 , thereby emitting luminescence and detecting the emitted luminescence.
13. The scintillator composed of a fluoride single crystal comprising Ce and, wherein the single crystal is represented by Ce 1-x Lu x F 3 (0.001≦X ≦0.5).
14. The scintillator according to claim 3 , wherein the fluoride single crystal further contains at least one element (R 2 ) selected from among Sc, Y, and La and is represented by (Ce 1-x Lu x ) 1-y R 2 y F 3 (0.001≦x≦0.5; y≦0.95).
15. The scintillator composed of a fluoride single crystal according to claim 13 , which further contains Gd, wherein the single crystal is represented by Ce 1-x R 1 x F 3 (0.001≦x ≦0.5, and R 1 represents Lu and Gd).
16. The scintillator according to claim 15 , wherein the fluoride single crystal further contains at least one element (R 2 ) selected from among Sc, Y, and La and is represented by (Ce 1-x R 1 x ) 1-y R 2 y F 3 (0.001≦x ≦0.5;y≦0.95).