Edward J. Seppi, PhD

Title:  Physicist (Retired)
Company: SLAC, Varian
Location: Portola Valley, California
United States


  • American Physical Society
  • Boy Scouts of America, Menlo Park, CA (Assistant Scoutmaster, 1969-1975)
  • Brigham Young University
  • California Institute of Technology
  • Ladera Community Association (board of directors, 1988-1990)
  • University of Idaho


  • Honoree, Distinguished Worldwide Humanitarian Award (2020)
  • Inductee, Top Professionals of the Year, Marquis Who’s Who (2020, 2019)
  • Recipient, Albert Nelson Marquis Lifetime Achievement Award (2019)
  • Featured Listee, Who’s Who in the West,” Marquis Who’s Who (1989-1999)
  • Co-Author, Numerous Technical Papers on CT and Digital X-Ray Photography
  • Co-Author, “The Stanford Two-Mile Accelerator” (1968)
  • Contributor, Articles to More than 50 Scientific Publications
  • Development and Production, World’s first whole-body successful three-second CT Scanner
  • Development, CT Scanner using megavolt radiation used in cancer therapy

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