Medal for outstanding contributions to the understanding of nuclear interactions of cosmic radiation with matter and its implications for space radiation exposure and shielding. He is a council member of the National Council on Radiation Protection and Measurements and a fellow of the American Nuclear Society and of the Health Physics Society. His research interests include space radiation transport code development, space radiation shielding, theoretical modeling of secondary neutron production cross sections and spectra from energetic proton and heavy-ion interactions with thin and thick targets, modeling production of radioactive and stable heavy nuclides from nuclear spallation, and the design of neutron sources, including cold sources, for use in radiography, radiotherapy, neutron activation analysis, and materials studies. He was the principal investigator and leader of the Space Radiation Transport Code Development Consortium from 2002 to 2007. He is the author of approximately 525 publications, including 145 research articles in refereed journals.


RONALD E. TURNER is a fellow at Analytic Services, Inc. (ANSER). Dr. Turner has more than 20 years of experience in space systems analysis, space physics, orbital mechanics, remote sensing, and nuclear and particle physics. He also has extensive experience in radiation effects on humans in space. His recent research on the Mars Odyssey mission included risk management strategies for solar particle events during human missions to the Moon or Mars. He has been a participant at NASA workshops looking at space radiation/biology missions, life science mission requirements for several Mars initiatives, and the impact of solar particle events on the design of human missions. Dr. Turner served on the NRC Safe on Mars study in 2002. He was the senior science adviser to the NASA Institute for Advanced Concepts. Dr. Turner received a Ph.D. in physics from the Ohio State University, an M.S. in physics from the University of Florida, and a B.S. in physics from the University of Florida. He was also chair of the NRC Human Health and Support Systems Panel reviewing the NASA capabilities roadmap and is a member of the Space Studies Board Committee on Solar and Space Physics.


ALLAN J. TYLKA is a research physicist in the High Energy Space Environment Branch of the Space Science Division of Naval Research Laboratory (NRL). Dr. Tylka’s work has focused on using satellite data to investigate and model acceleration and transport processes in solar energetic particle events. He led development of CREME96, a revision of NRL’s Cosmic Ray Effects on Micro-Electronics code, that is widely used in the aerospace industry to assess space radiation impacts on satellites. He is a fellow of the American Physical Society and a member of the American Geophysical Union, the American Astronomical Society, the International Astronomical Union, and the American Association for the Advancement of Science. Dr. Tylka received an Alan Berman Research Publication Award, an NRL Technology Transfer Award, an NRL Invention Award, and the 2005 Editors’ Citation for Excellence in Refereeing for the Journal of Geophysical Research-Space Physics. Dr. Tylka holds a B.A. in physics and mathematics from Washington and Jefferson College and an M.S. in physics from the University of Maryland. Following his study of high-energy particle physics at the Deutsches Elektronen-Synchrotron in Hamburg, Germany, Dr. Tylka received his Ph.D. in physics from the University of Maryland.


GAYLE E. WOLOSCHAK is currently a professor in the Department of Radiology, Feinberg School of Medicine, Northwestern University. Her interests include studies of the molecular biology of lymphocyte and motor neuron abnormalities in DNA-repair-deficient mice, studies of radiation-inducible nanoparticles, and analysis of molecular mechanisms of oncogenesis in radiation-induced tumors. She received her Ph.D. in medical sciences (microbiology) from the Medical College of Ohio and did postdoctoral training in the Departments of Immunology and Molecular Biology at the Mayo Clinic. Dr. Woloschak was a senior molecular biologist and group leader of the Biosciences Division, Argonne National Laboratory, and a senior fellow at Nanosciences Consortium, Argonne National Laboratory-University of Chicago. She has served as a member on the National Institutes of Health’s radiation study section and on the NRC’s Committee on Radiofrequency Radiation, and chaired NASA’s peer review radiation biology committee.



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