COMPOSITE HIGH TEMPERATURE GAMMA RAY DETECTION MATERIAL FOR WELL LOGGING APPLICATIONS

摘要

An apparatus for detecting a gamma-ray includes: a gamma-ray detection material comprising a material transparent to light having a plurality of nano-crystallites where each nano-crystallite in the plurality has as periodic crystal structure with a diameter or dimension that is less than 1000 nm and includes (i) a heavy atom having an atomic number greater than or equal to 55 that emits an energetic electron upon interacting with an incoming gamma-ray and (ii) and an activator atom that provides for scintillation upon interacting with the energetic electron to emit light photons wherein the heavy atom and the activator atom have positions in the periodic crystal structure of each nano-crystallite in the plurality; and a photodetector optically coupled to the gamma-ray detection material and configured to detect the light photons emitted from the scintillation and to provide a signal correlated to the detected light photons.