Patent ID: 8866069

Claim:
A downhole measurement assembly to facilitate the reliable downhole measurement of radiation given off by geological formations adjacent a wellbore, the downhole measurement assembly comprising: one or more gamma probes to sense radiation given off by downhole formations and to provide output pulses representative of the radiation, one or more microcontrollers, at least one of which is configured to receive the output pulses from the one or more of gamma probes, at least one microcontroller configured to detect when one of the one or more of gamma probes is providing output pulses that may indicate one or more probes has malfunctioned, the microcontroller configured to assign a representative data value to the output pulses of the one or more gamma probes, to calculate a differential diversion factor for each of the one or more gamma probes, and to determine when the one or more of the gamma probes differential diversion factor indicates the one or more gamma probes may be close to malfunctioning, and one or more memory elements to store gamma controller assembly executable code and gamma probe data.