Downhole Gas-Filled Radiation Detector with Optical Fiber
AssigneeSchlumberger Technology Corporation
InventorRichard G Saenger
Life of this patent
Estimating the term…
Abstract
Systems and devices are provided that relate to a gas-filled radiation detector with an internal optical fiber. The internal optical fiber may detect photons emitted during ionization avalanche events triggered by incident radiation. Such a radiation detector may include a housing, a fill gas within the housing, and an optical fiber within the housing. The fill gas may interact with radiation through an ionization avalanche that produces light. The optical fiber within the housing may capture the light and transmit the light out of the housing.
Claims14
A radiation detector comprising:
- a housing configured to serve as a cathode in an ionization avalanche;
- a fill gas disposed within the housing, wherein the fill gas is configured to interact with radiation through the ionization avalanche that produces light;
- and
- an optical fiber within the housing configured to capture the light and transmit the light out of the housing, wherein the optical fiber is doped with a conductive material and is configured to serve as an anode in the ionization avalanche.
A downhole radiation detection system configured to detect radiation in a borehole of a geological formation, the system comprising:
- a gas tube radiation detector configured to generate photons when struck by incident radiation, the photons being captured and transmitted out of the gas tube radiation detector as an optical signal by an optical fiber inside the gas tube radiation detector;
- and
- a signal detection component configured to detect the optical signal from the optical fiber.
Dependencies are inferred from the claim text.