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US 2019/0094392 A1Published application
Shock resistant downhole gamma ray detector assembly
AssigneeQCD Technology Inc.
InventorsCornel DINICA, Richard JOHNSON, Anthony Desmond RUSSELL
Life of this patent
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Abstract
A downhole gamma ray detector having improved resistance to shocks and vibrations encountered during use of modern drilling techniques. The detector includes a scintillator with a window for emitting photons upon receipt of gamma rays. The window faces a photon-receiving end of a photomultiplier tube. The scintillator and the photomultiplier tube are held in a fixed arrangement with respect to each other to provide an empty gap between the window and the photon-receiving end of the photomultiplier tube.
Claims20
A downhole gamma ray detector comprising:
- a scintillator with a window for emitting photons upon receipt of gamma rays, the window facing a photon-receiving end of a photomultiplier tube, wherein the scintillator and the photomultiplier tube are held in a fixed arrangement with respect to each other to provide an empty gap between the window and the photon-receiving end of the photomultiplier tube.
A downhole gamma ray detector comprising:
- a scintillator with a window for emitting photons upon receipt of gamma rays, the window facing a photon-receiving end of a photomultiplier tube, wherein the scintillator and the photomultiplier tube are held in a fixed arrangement with respect to each other to provide an empty gap between the window and the photon-receiving end of the photomultiplier tube and a sleeve is provided to cover the scintillator and the photomultiplier tube.
Dependencies are inferred from the claim text.