1971
Earns a Bachelor of Science in engineering technology (radiation and nuclear) from Oklahoma State University.
1975
Achieves a Master of Science in medical physics from the University of California, Los Angeles.
1975
Is an assistant radiological physicist and assistant radiation safety officer at the Hospital of the Good Samaritan in Los Angeles, CA until 1980.
1980
Is a radiological physicist and radiation safety officer at Memorial Medical Center in Long Beach, CA until 1983.
1983
Is a radiological physicist in the Departments of Radiology and Radiation Oncology at St. Joseph Hospital in Orange, CA until 1992.
1994
Becomes a fellow of the American College of Medical Physics.
1994
Teaches as an adjunct instructor in the Health Sciences Program at California State University, Long Beach until 2017.
1995
Becomes president of Therapy Physics.
1999
Becomes a fellow of the American Association of Physicists in Medicine.
2000
Becomes a fellow of the American College of Radiology.
2006
Is an advisory adjunct faculty member at Harbor-UCLA Medical Center School of Radiologic Technology until 2018.
2008
Is a Villforth lecturer at the Conference of Radiation Control Program Directors.
2009
Receives the Marvin Williams Award for Professional Achievement from the Association of Change Management Professionals.
2015
Receives the Edith Quimby Lifetime Achievement Award from the American Association of Physicists in Medicine.
2015
Is an international expert with the International Atomic Energy Association through today.
2015
Is a U.S. delegate to ISO Standards Committee on Radiation Protection of the American National Standards Institute through today.
2017
Serves as president of the American Association of Physicists in Medicine.
2018
Serves as chairman of the board of the American Association of Physicists in Medicine.
2018
Becomes a fellow of the International Organization of Medical Physics; Is vice president of Therapy Physics through today.