Daniel Joseph is a nuclear medicine and PET/CT technologist (ARRT(R), NMTCB(NM)) who works travel contracts, including mobile PET/CT trailers, and a retired 20-year U.S. Air Force veteran. Opes Supremae publishes practical, plainly sourced field guides for imaging technologists: what the first month of training leaves out. Reference material for technologists, not medical advice for patients.