Fleischer co-authors paper

Robert L. Fleischer, research professor of Geology, has co-authored "Etched Tracks and Serendipitous Dosimetry" in a recent issue of "Radiation Protection Dosimetry," with Research Associate Sekyung Chang and students Jeremy Farrell '03, Rachel C. Herrmann '07, Jonathan MacDonald '02 and Marek Zalesky '01 of the Geology department; and Professor Emeritus Robert H. Doremus of Materials Science and Engineering at RPI. The paper describes retrospective personal dosimetry using etched-track methods. It includes neutron dosimetry by fossil fission tracks in glass from Hiroshima, radon dosimetry using alpha tracks in eyeglass lenses, and long-term radon measurements in homes via stored surface alpha activity in household glass caused by embedded decay products of radon.