Detector packages

Patent metadata

Field	Value
Publication number	US-9835731-B2
Application number	US-201314649004-A
Country	US
Kind code	B2
Filing date	Dec 11, 2013
Priority date	Dec 11, 2013
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

Various embodiments can include apparatus or methods to operate and provide detection packages. In various embodiments, detection packages may include an illuminating device, a photodetector, and an optical coupling component disposed between the illuminating device and the photodetector, where the optical coupling component can be structured to enhance the coupling of light from the illuminating device to the photodetector. Additional apparatus, systems, and methods are disclosed.

First claim

What is claimed is:

1. An apparatus comprising:
an illuminating device that produces a light signal with an emission wavelength in response to radiation incident to the illuminating device;
a photodetector with a region of highest quantum efficiency in a spectral response of the photodetector; and
an optical coupling component, disposed between the illuminating device and the photodetector, to absorb the light signal from the illuminating device and emit a modified light signal with a wavelength in the region of highest quantum efficiency in the spectral response of the photodetector, wherein the optical coupling component is arranged and structured to absorb vibrational shock to protect both the illuminating device and the photodetector.

2. The apparatus of claim 1 , wherein the optical coupling component is an optical upconverter.

3. The apparatus of claim 2 , wherein the optical coupling component is an optical coupling medium that is doped, coated, or doped and coated to match the emission wavelength of the illuminating device to the spectral response of the photodetector.

4. The apparatus of claim 3 , wherein the illuminating device is a scintillator.

5. The apparatus of claim 4 , wherein the scintillator is a gamma-ray scintillator.

6. The apparatus of claim 1 , wherein the optical coupling component is doped, coated, or doped and coated with a molecular complex.

7. The apparatus of claim 6 , wherein the molecular complex is structured to perform photon triplet-triplet annihilation upconversion.

8. The apparatus of claim 6 , wherein the molecular complex includes 9,10-diphenylanthracene combined with a platinum bisacetylide complex.

9. The apparatus of claim 1 , wherein the illuminating device, the photodetector, and the optical coupling component are arranged in a housing operable in a wellbore.

10. The apparatus of claim 1 , wherein the optical coupling component upconverts light with a peak wavelength of 470-490nm to light with a peak wavelength of 370-380 nm.

11. A method comprising:
receiving radiation at a scintillator;
receiving light with an emission wavelength from the scintillator at an optical coupling medium in response to receiving the radiation at the scintillator, wherein the optical coupling medium is arranged and structured to absorb vibrational shock to protect both the illuminating device and a photodetector;
upconverting, using the optical coupling medium, the light received from the scintillator to an upconverted light at a lower wavelength, wherein the lower wavelength is within a region of highest quantum efficiency in a spectral response curve of the photodetector;
receiving the upconverted light at the photodetector; and
generating a detection signal with the photodetector.

12. The method of claim 11 , wherein the optical coupling medium is doped, coated, or doped and coated to match the emission wavelength of the scintillator to the spectral response curve of the photodetector.

13. The method of claim 12 , wherein the scintillator is a gamma-ray scintillator.

14. The method of claim 12 , wherein the optical coupling medium is doped, coated, or doped and coated with a molecular complex.

15. The method of claim 14 , wherein the molecular complex is structured to perform photon triplet-triplet annihilation upconversion.

16. The method of claim 11 , wherein receiving the radiation at the scintillator, receiving the light at the optical coupling medium, and upconverting the light is conducted in a housing operable in a wellbore.

17. The method of claim 11 , wherein upconverting the light comprises upconverting light with a peak wavelength of 470-490 nm to light with a peak wavelength of 370-380 nm.

18. A system comprising:
an illuminating device that produces a light signal with an emission wavelength in response to radiation incident to the illuminating device;
a photodetector with a region of highest quantum efficiency in a spectral response of the photodetector;
an optical coupling component, disposed between the illuminating device and the photodetector, to absorb the light signal from the illuminating device and emit a modified light signal with a wavelength in the region of highest quantum efficiency in the spectral response of the photodetector, wherein the optical coupling component comprises an optical coupling medium that is arranged and structured to absorb vibrational shock to protect both the illuminating device and the photodetector; and
a machine-readable storage device operable to receive electrical signals from the photodetector.

19. The system of claim 18 , wherein the optical coupling component comprises an optical upconverter.

20. The system of claim 19 , wherein the optical coupling component is doped, coated, or doped and coated with a molecular complex.

21. The system of claim 20 , wherein the molecular complex is structured to perform photon triplet-triplet annihilation upconversion.

22. The system of claim 18 , wherein the optical coupling medium is doped, coated, or doped and coated to absorb the emission wavelength of the illuminating device and to emit the modified light signal with a wavelength in the region of highest quantum efficiency in the spectral response of the photodetector.

23. The system of claim 18 , wherein the illuminating device comprises a scintillator.

24. The system of claim 18 , further comprising electronics to provide signals output by the photodetector.

25. The system of claim 18 , wherein the optical coupling component upconverts light with a peak wavelength of 470-490 nm to light with a peak wavelength of 370-380 nm.

Assignees

• Halliburton Energy Services Inc

Inventors

• Lee Dongwon
• Guo Weijun

Classifications

• G01T1/2002 Primary

  Optical details, e.g. reflecting or diffusing layers · CPC title

• G01T1/2018

  Scintillation-photodiode combinations · CPC title

• G01V5/06

  for detecting naturally radioactive minerals · CPC title

• E21B49/08 Primary

  Obtaining fluid samples or testing fluids, in boreholes or wells · CPC title

• G01T1/20185 Primary

  Coupling means between the photodiode and the scintillator, e.g. optical couplings using adhesives with wavelength-shifting fibres · CPC title