Cesium (Cs) diffusion at hydrobiotite interlayer spaces

Abstract

To understand the kinetic aspect of cesium (Cs) sorption behavior, the diffusion property of Cs at interlayer spaces of hydrobiotite was examined using single crystal grains, ¹³⁷Cs tracer and imaging-plate  autoradiography. Based on Cs distribution inside grains, apparent diffusion coefficients of Cs at 25, 44 ºC were estimated 0.5, 2.0×10^-13 m²s^-1, respectively.