SCINTILLATOR-BASED NEUTRON DETECTOR FOR OILFIELD APPLICATIONS

SCINTILLATOR-BASED NEUTRON DETECTOR FOR OILFIELD APPLICATIONS

Borehole logging tools and systems that include a scintillator positioned to interact with scattered source neutrons that are received from a target formation. The scintillator emits luminescence in response to interaction with the scattered neutrons. The scintillator includes an aluminofluoride hos...

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Hauptverfasser: QIAN, JING, SPILLANE, TIMOTHY, BERHEIDE, MARKUS, ROSCOE, BRADLEY A
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
PHYSICS
TESTING
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creator QIAN, JING
SPILLANE, TIMOTHY
BERHEIDE, MARKUS
ROSCOE, BRADLEY A
description Borehole logging tools and systems that include a scintillator positioned to interact with scattered source neutrons that are received from a target formation. The scintillator emits luminescence in response to interaction with the scattered neutrons. The scintillator includes an aluminofluoride host material (e.g., LiCAF). In a specific embodiment, the aluminofluoride host material is doped with europium. In a further specific embodiment, a processor distinguishes scattered neutrons from gamma rays based upon identifying a peak within an output signal from the scintillator. In yet another specific embodiment, a system includes a first scintillator and a second scintillator. The processor subtracts luminescence generated by the second scintillator from luminescence generated by the first scintillator to identify a neutron response of the first scintillator.
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subjects DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
PHYSICS
TESTING
title SCINTILLATOR-BASED NEUTRON DETECTOR FOR OILFIELD APPLICATIONS
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