CPC G01V 5/105 (2013.01) | 18 Claims |
1. A downhole nuclear measurement tool, comprising:
a housing;
a neutron source, arranged within the housing;
a first detector positioned at a distance away from the neutron source, the first detector receiving backscatter radiation, from a formation, in response to neutron emission from the neutron source, and the first detector being a gamma ray detector; and
a second detector, positioned radially outward from and circumferentially surrounding at least a portion of the first detector, the second detector receiving the backscatter radiation, the second detector being a neutron detector, wherein the backscatter radiation at the second detector corresponds to a neutron flux incident on the first detector.
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