Scintillation Detector Assembly

• US 20140158891A1
• Filed: 02/13/2014
• Published: 06/12/2014
• Est. Priority Date: 08/24/2009
• Status: Active Grant

• Current Assignee: Luxium Solutions LLC
• Original Assignee: Saint-Gobain Ceramics & Plastics Incorporated (Compagnie De Saint-Gobain)
• Inventors: Perna, Louis
• Granted Patent: US 9,360,563 B2
• Time in Patent Office: Days
• US Class Current: 250/366
• CPC Class Codes: A61B 6/037 Emission tomography
• CPC Class Codes: A61B 6/4258 for detecting non x-ray radiation, e.g. gamma radiation A61B6/037 takes precedence
• CPC Class Codes: G01T 1/20 with scintillation detectors
• CPC Class Codes: G01T 1/2002 Optical details, e.g. reflecting or diffusing layers
• CPC Class Codes: G01T 1/2006 using a combination of a scintillator and photodetector which measures the means radiation intensity
• CPC Class Codes: Y10T 156/10 Methods of surface bonding and/or assembly therefor

Abstract

The present disclosure relates to a scintillation assembly. The assembly may include a scintillator having a surface, a pressure sensitive adhesive layer contacting at least a portion of said surface, and a reflector proximal to the scintillator surface and adhered to the scintillator surface by the pressure sensitive adhesive layer, wherein the adhesive layer exhibits a TTV of 0.01 mm or less.

Claims

1. A scintillation assembly, comprising:

a scintillator having a surface;

a pressure sensitive adhesive layer contacting at least a portion of said surface; and

a reflector proximal to said scintillator surface and adhered to said scintillator surface by said pressure sensitive adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less.

2. The scintillation assembly of claim 1, wherein said adhesive comprises a sheet of adhesive including a first side and a second side, wherein said first side is adhered on at least a portion of said scintillator surface and said second side is adhered to said reflector.

3. The scintillation assembly of claim 1, wherein said adhesive comprises acrylic.

4. The scintillation assembly of claim 1, wherein said adhesive transmits 90% of incident light having a wavelength in the range of 340 nm to 800 nm

5. The scintillation assembly of claim 1, wherein said adhesive exhibits a refractive index of 1.00 to 1.60 at a wavelength of 630 nm.

6. The scintillation assembly of claim 1, wherein said adhesive exhibit a haze of 10% or less at a wavelength in the range of 340 nm to 800 nm.

7. The scintillation assembly of claim 1, wherein said adhesive has a thickness of 0.1 mm or less.

8. The scintillation assembly of claim 1, wherein said reflector comprises polytetrafluoroethylene.

9. The scintillation assembly of claim 1, wherein said scintillator assembly is present in a medical device.

10. The scintillation assembly of claim 9, wherein said medical device is selected from the group consisting of a positron emission tomography scanner, a gamma camera and a computed tomography scanner.

11. The scintillation assembly of claim 1, wherein said scintillator assembly is present in a well logging detector.

12. The scintillation assembly of claim 1, wherein said scintillator assembly is present in an inspection apparatus.

13. The scintillation assembly of claim 12, wherein said inspection apparatus is selected from the group consisting of a thermal neutron activation analysis detector, luggage scanner, thickness gauge, liquid level gauge, active security device, active manifest verification device, passive security device, passive manifest verification device, active spectrometer, passive spectrometer, active gross counter and passive gross counter.

14. The scintillation assembly of claim 1, wherein said scintillator assembly is present in a research device.

15. The scintillation assembly of claim 14, wherein said research device is selected from the group consisting of a spectrometer and calorimeter.

16. A method of forming a scintillation device, the method comprising:

adhering a reflector to at least a portion of a surface of a scintillator, wherein said reflector is adhered to said scintillator surface by an adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less.

17. The method of claim 16, wherein said adhesive layer is an adhesive sheet.

18. The method of claim 16, further comprising arranging a series of scintillators, each having a surface, wherein said adhesive is positioned on said surfaces of said scintillators.

19. The method of claim 18, wherein said reflector is adhered to said surfaces and further comprising cutting said adhesive and said reflector to form an individual scintillator assembly.

20. The method of claim 16, wherein said adhesive comprises acrylic.

21. The method of claim 16, wherein said adhesive transmits 90% of incident light having a wavelength in the range of 340 nm to 800 nm

22. The method of claim 16, wherein said adhesive exhibits a refractive index of 1.47 at a wavelength of 630 nm.

23. The method of claim 16, wherein said adhesive exhibit a haze of 10% or less at a wavelength in the range of 340 nm to 800 nm.

24. The method of claim 16, wherein said adhesive has a thickness of 0.1 mm or less.

25. A scintillation detection system, comprising:

a scintillator assembly including a scintillator having a surface, a pressure sensitive adhesive layer contacting at least a portion of said surface, and a reflector proximal to said scintillator surface and adhered to said scintillator surface by said pressure sensitive adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less;

a photodetector in optical communication with said scintillator; and

an analyzer in electrical communication with said photodetector.

26. A medical device comprising:

a scintillator having a surface;

a pressure sensitive adhesive layer contacting at least a portion of said surface; and

a reflector proximal to said scintillator surface and adhered to said scintillator surface by said pressure sensitive adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less.

27. The medical device of claim 26, wherein said medical device is selected from the group consisting of a positron emission tomography scanner, a gamma camera and a computed tomography scanner.

28. An inspection apparatus, comprising:

a scintillator having a surface;

a pressure sensitive adhesive layer contacting at least a portion of said surface; and

a reflector proximal to said scintillator surface and adhered to said scintillator surface by said pressure sensitive adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less.

29. The inspection apparatus of claim 28, wherein said inspection apparatus is selected from the group consisting of a thermal neutron activation analysis detector, luggage scanner, thickness gauge, liquid level gauge, active security device, active manifest verification device, passive security device, passive manifest verification device, active spectrometer, passive spectrometer, active gross counter and passive gross counter.

30. A research device, comprising:

a scintillator having a surface;

a pressure sensitive adhesive layer contacting at least a portion of said surface; and

a reflector proximal to said scintillator surface and adhered to said scintillator surface by said pressure sensitive adhesive layer, wherein said adhesive layer exhibits a TTV of 0.01 mm or less.

31. The research device of claim 30, wherein said research device is selected from the group consisting of a spectrometer and calorimeter.