Scope and Contents Note From the Collection: This collection consists of five series of materials donated to the university by Mr. Ronald L. Kathren, health physics and radiation protection specialist, and President of the Health Physics Society from 1988 to 1990. Series one contains Health Physics Society related materials and correspondence. Series two contains materials related to the University of Florida and the Health Physics department at the university. Series three contains materials related to the NASA's Ulysses Mission....