On the limits of low level measurements of137Cs as a natural radiotracer

High rate, high resolution gamma-spectrometry with real-time correction of counting losses is made possible by combining the novel Preloaded Filter (PLF) pulse processor with the Virtual Pulse Generator (VPG) counting loss correction method. A spectrometry system for high-speed activation analysis based on the PLF processor, VPG correction and a high resolution LOAX detector is tested up to 850 kc/s.Dedicated to Professor Vincent P. GUINN on the occasion of his retirement.