[ 4-5 May 2010, Châtenay-Malabry, France ]
Background
Radium-226 (Ra-226) is a member of the uranium-238 (U-238) series decay chain and is found in minute quantities in a wide range of uranium-bearing rocks. Mining and processing of these rocks, for a wide range of industrial purposes, gives rise to waste containing elevated concentrations of Ra-226 relative to those normally…