Background
Christensen, Ralph Chresten was born on December 11, 1939 in San Mateo, California, United States. Son of Ralph Jorgensen and Clara (Clyde) Christensen.
Christensen, Ralph Chresten was born on December 11, 1939 in San Mateo, California, United States. Son of Ralph Jorgensen and Clara (Clyde) Christensen.
Bachelor of Science in Physics, Stanford University, 1961; Master of Arts in Education, Stanford University, 1962; M of Bioradiology, University of California, Berkeley, 1965; Doctor of Philosophy in Biophysics, University of California, Berkeley, 1971.
Teacher high school science, Palo Alto (California) Unified School District, 1961-1963; assistant professor radiology and microbiology, Pennsylvania State University College Medicine, Hershey, 1973-1976; assistant professor radiation science, U. Kentucky Medical Center, Lexington, 1976-1979; associate professor radiation science, U. Kentucky Medical Center, Lexington, since 1979; department chairman health radiation science, U. Kentucky Medical Center, Lexington, 1983-1988; director division radiation science, U. Kentucky Medical Center, Lexington, since 1988.
Member American Association Physicists in Medicine, Health Physics Society (chair manpower & professional education committee 1983-1985, 90-91, chair placement committee 1978-1982), Sigma Xi.
Married Elnora Jean Lenz, December 16, 1961 (deceased November 1965). 1 child, Brian Keith. Married Evelyn Brown, June 3, 1978.
Children: MArtin Andrew, Susan Elizabeth, Stephen McCain.