Include yourself. One of the most striking eexamples I've seen was at one of our remediations A reporter was asking about radiation, &the conrep took a 2X2 NaI probe and placed it against the reporter's chest over the heart. The K-40 in the active muscle was enough to raise the counts audibly. Luke McCormick c0etxlim@mrd42.mrd.usace.army.mil