Development of a technique for the on line determination of Uranium in solution by gamma ray spectrometry

摘要

A technique based on gamma ray spectrometry has been developed for the continuous monitoring of uranium in the solution form. Simulated container and support system was designed and fabricated for the development of an efficiency calibration curve and to find the detection limit for the estimation of uranium using 185.7 keV (~(235)U) gamma ray. The system was calibrated for its counting efficiency using HPGe detector system, in a standard source mount to detector geometry. The sensitivity of the detection system and counting time for low-level estimation of uranium has also been established. The detectioa limit of the monitor is approx 10 mg of Uranium per litre of the solution. In order to correct for the density variation of the solution, experiment was carried to study the variation of count rate of 185.7 keV gamma ray of ~(235)U as a function of the density of the solution. This report gives the details of the development of a continuous monitor for the determination of uranium in the solution streams.