NUCLEAR DETECTOR FOR MULTIPHASE FLUID SENSING

摘要

An extremely stable nuclear detector for use in the determination of fractional compositions of multiphase fluids (16) having a scintillator (24), a photomultiplier (26), processing circuitry that determines the energy levels of pulses output from the photomultiplier, and scintillator temperature control (36) means for controlling the temperature of the scintillator during operation of said nuclear detector. Also disclosed and claimed is a scintillator assembly for use in such a nuclear detector having a hermetically sealed scintillator housing and a scintillator crystal contained within the scintillator housing, where the scintillator housing has a low attenuation window (22) composed primarily of Beryllium.