Fabrication of Monodisperse Lucite and Iron Oxide Particles With a Spinning Disk Generator

This paper describes the technique for making radioactive lucite and iron oxide spheres in the range 1–8 micro, which have a minimum size uniformity of 10 per cent standard deviation. The method involves the atomization, with a spinning disk generator, of an iron oxide sol or lucite in a xylene-acetylacetone solution. Tagging of the particles is done by addition of the isotope either in carrier-free form to the sol or chelated with acetylacetone to the lucite solution. The assessment of leaching of a variety of isotopic tags from the particles is described.