Neutron and gamma sensitive fiber scintillators
First Claim
1. A formation evaluation tool for detecting radiation in a borehole in a volume of an earth formation, comprising:
- a detector including a monolithic scintillation element comprising a coherent assemblage of heat-joined fibers, wherein the fibers are made of an optically transparent scintillation media,wherein the scintillation media comprises at least one of i) organic crystalline scintillation materials, ii) amorphous glass, and iii) nanostructured glass ceramics.
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Abstract
One general embodiment according to the present disclosure may be formation evaluation tool for detecting radiation in a borehole in a volume of an earth formation. The tool may include a detector including a monolithic scintillation element comprising a coherent assemblage of joined fibers, wherein the fibers are made of an optically transparent scintillation media. The fibers may be at least one of i) gamma ray responsive; and ii) neutron responsive. The coherent assemblage of fibers may be a continuous mass, may be heat-joined. The fibers may be solid. The scintillation media may comprise at least one of i) organic crystalline scintillation materials, ii) amorphous glass, and iii) nanostructured glass ceramics. The coherent assemblage of fibers may be asymmetric. The coherent assemblage of fibers may surround a further scintillation media having different scintillation characteristics than the scintillation media. The scintillation element may be azimuthally sensitive.
56 Citations
19 Claims
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1. A formation evaluation tool for detecting radiation in a borehole in a volume of an earth formation, comprising:
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a detector including a monolithic scintillation element comprising a coherent assemblage of heat-joined fibers, wherein the fibers are made of an optically transparent scintillation media, wherein the scintillation media comprises at least one of i) organic crystalline scintillation materials, ii) amorphous glass, and iii) nanostructured glass ceramics. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for detecting radiation in a borehole in a volume of an earth formation, comprising:
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using a monolithic scintillation element comprising a coherent assemblage of heat-joined fibers to generate light scintillations in response to borehole radiation, wherein the fibers are made of an optically transparent scintillation media, wherein the scintillation media comprises at least one of i) organic crystalline scintillation materials, ii) amorphous glass, and iii) nanostructured glass ceramics.
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15. A formation evaluation tool for detecting radiation in a borehole in a volume of an earth formation, comprising:
a detector including a monolithic scintillation element comprising a coherent assemblage of heat-joined fibers, wherein the fibers are made of an optically transparent scintillation media, wherein the coherent assemblage of fibers is asymmetric. - View Dependent Claims (16, 17, 18, 19)
Specification