00000nam 2200000za 4500 9.821120 CaOODSP 20240219183431 cr ||||||||||| 160714s2013 onc|||||o f000 0 eng d CaOODSP eng eng fre n-cn--- D68-4/056-2013E-PDF Erhardt, L. S. (Lorne S.) Completion report for CRTI 07-0103RD [electronic resource] : "full-scale RDD experiments and models" / by Lorne Erhardt, Debora Quayle and Scott Noel. [Ottawa] : Defence Research and Development Canada, c2013. xiv, 52 p. : figures, graphs, tables. Technical report ; 2013-056 "December 2013." Includes bibliographical references. In order to gather more and more accurate information on the behaviour of Radiological Dispersion Devices (RDDs), a set of experiments was performed. These experiments built on the existing body of knowledge and included many of the world's leading authorities in RDD physics, modelling and atmospheric dispersion. Beginning with indoor tests to characterize the explosive used to perform the dispersion of our radioisotope, the experiments culminated in a series of three outdoor releases of a short-lived tracer isotope, 140La. The dispersion and deposition from these outdoor explosive releases were monitored and recorded using a wide variety of instruments. Radiation was monitored using fixed point large volume gamma detectors, a large number of small volume gamma detectors (260), truck and helicopter mounted spectrometry equipment, hand-held survey instruments, and air samplers. Weather conditions were monitored from three mobile meteorological stations, as well as through the launching of weather balloons. There were also LIDAR, high speed video, and wide-field video monitoring of the explosions and subsequent plumes. The unique data sets gathered during these releases fed existing RDD modelling efforts and will be shared with our allies to inform future generations of models and risk assessments. gccst Technical reports gccst Risk management Atmospheric dispersion Radioactive Quayle, Debora. Noel, Scott. Defence R&D Canada. Technical report (Defence R&D Canada) 2013-056 (CaOODSP)9.820558 PDF 2.62 MB https://publications.gc.ca/collections/collection_2016/rddc-drdc/D68-4-056-2013-eng.pdf