Inline Applications of Gamma Monitoring and Uranium Colorimetry

Techniques using gamma scintillation spectrometry and colorimetry for continuous analysis of radiochemical processing plant streams are discussed. The use of a continuous gamma monitor on an organic processing stream is described with emphasis on the practical difficulties encountered. A study substantiated by experiment on an improved gamma monitor is presented. The use of colorimetry to determine uranium concentration in processing streams is considered. Tests and results are reported for a relatively simple colorimeter and discussion is presented concerning more elaborate techniques.