Analysis of Fired Depleted Uranium Dust: Particle Size Spectrum, Chemical and Isotopic Composition, and Oxidative State Analysis


  1. Mitchel, R.E.J.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN);Atomic Energy of Canada Ltd, Chalk River ONT (CAN)
Chemical and physical analyses were performed on samples of dust resulting from munitions, containing depleted uranium, that had been fired and had impacted an armoured target. Mass spectroscopy indicated that about 23 weight% of the resulting debris was uranium. The average atom% of U-235 was 0.198 +/- 0.10, consistent with depleted uranium. Other major elements present were Fe, Al and Si. The sample was fractionated by passing through a 300 ìm sieve. About 47% of the total mass was <300 ìm, of which about 14% was <10 ìm. The uranium was present in the sample as uranium oxides - mainly U sub 3 0 sub 7 and U sub 3 0 sub 8, and a very small fraction as U0 sub 2. As determined by X-ray diffraction analysis, the relative amounts of U sub 3 0 sub 7, U sub 3 0 sub 8 and U0 sub 2 phases in the sample are estimated to be about 47%, 44% and 9%, respectively.
Fired Depleted Uranium;Particle size spectrum;Chemical composition;Istropic composition;Oxidative State Analysis
Report Number
DRDC-OTTAWA-CR-2003-085 — Contractor Report
Date of publication
01 Oct 2001
Number of Pages
Hardcopy;Document Image stored on Optical Disk

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