Scintillation separator

1. A scintillation detector, comprising:

a first scintillator having a first surface; and

a composite reflector adjacent to at least a portion of the first surface, wherein:

the composite reflector includes a specular material layer having a first and second surface, an adhesive layer disposed on the first surface of the specular material layer, and a diffuse material layer disposed on the adhesive layer, wherein the diffuse material layer is adjacent to the first scintillator and is capable of transmitting 5% to 50% of incident light in a wavelength range of 200 nm to 800 nm.

2. The scintillation detector of claim 1 , wherein the composite reflector further includes a second adhesive layer disposed on the second surface of the specular material layer and a second diffuse material layer disposed on the second adhesive layer.

3. The scintillation detector of claim 1 , further comprising a second scintillator, wherein the first and second scintillators are disposed along a same side of the composite reflector.

4. The scintillator detector of claim 3 , wherein further comprising an adhesive layer capable of transmitting 80% or more of incident light having a wavelength in the range of 380 nm to 800 nm.

5. The scintillation detector of claim 1 , wherein the scintillator is in optical communication with a photodetector.

6. The scintillator detector of claim 1 , wherein the diffuse material layer includes a polyolefin or a fluorocarbon.

7. The scintillation detector of claim 1 , wherein the composite reflector exhibits a diffuse transmission of less than 15% of incident light having a wavelength in the range of 350 nm to 750 nm.

8. The scintillation detector of claim 1 , wherein the diffuse material layer directly contacts the scintillator.

9. A method of forming a scintillation detector, comprising:

arranging a first surface of a diffuse material layer proximal to at least a portion of a scintillator surface such that the first surface of the diffuse material layer is adjacent to the scintillator, wherein the diffuse material layer is capable of transmitting 5% to 50% of incident light in a wavelength range of 200 nm to 800 nm, and wherein the diffuse material layer further includes a second surface; and

arranging a specular material layer adjacent to the second surface of the diffuse material layer.

10. The method of claim 9 , further comprising applying adhesive to one of the second surface of the first diffuse material layer and the specular material layer.

11. The method of claim 9 , wherein the first diffuse material layer and specular material layer comprises a first sheet and the scintillator comprises a second sheet.

12. The method of claim 11 , further comprising cutting the sheets into slices and stacking the slices.

13. The method of claim 9 , further comprising arranging a second diffuse material layer adjacent to the specular material layer opposite the first diffuse material layer.

14. A scintillation detection system, comprising:

a scintillator having a surface;

a composite reflector surrounding at least a portion of the scintillator surface, wherein the composite reflector includes a specular material layer having a first and second surface, an adhesive layer disposed on the first surface of the specular material layer, and a diffuse material layer disposed on the adhesive layer, wherein the diffuse material is adjacent to the surface of the scintillator, and wherein the composite reflector exhibits a diffuse transmission of less than 15% of incident light having a wavelength in the range of 350 nm to 750 nm;

a photodetector in optical communication with the scintillator; and

an analyzer in electrical communication with the photodetector.

15. The scintillation detection system of claim 14 , wherein the diffuse material layer directly contacts the scintillator.

16. The scintillation detection system of claim 14 , wherein the diffuse material layer is capable of transmitting 5% to 50% of incident light in a wavelength range of 200 nm to 800 nm.

17. A medical device comprising:

a first scintillator having a first surface;

a second scintillator having a second surface;

a composite reflector adjacent to the first surface of the first scintillator and the second surface of the second scintillator, wherein:

the first and second scintillators are disposed along a same side of the composite reflector; and

the composite reflector includes a specular material layer and a diffuse material layer disposed between the specular material layer and first and second scintillators; and

the first diffuse material is adjacent to the surface of the scintillator; and

an adhesive layer disposed between the first diffuse material layer and each of the first and second scintillators, wherein the adhesive layer is capable of transmitting 80% or more of incident light having a wavelength in the range of 380 nm to 800 nm.

18. The medical device of claim 17 , wherein the medical device is selected from the group consisting of a positron emission tomography scanner, a gamma camera, and a computed tomography scanner.

19. The medical device of claim 17 , wherein the diffuse material layer is capable of transmitting 5% to 50% of incident light in a wavelength range of 200 nm to 800 nm.