1954 Analytical Chemist, Industrial Laboratories, Denver 

1957-1960 Oceanographic and Meteorology Officer (USCG) 

1958–1960 Science Officer (USCG), International Ice Patrol

1960–1964 Senior Oceanographer, University of Washington (concurrent with Medical School) 

1964–1965 Medical Intern, Peter Bent Brigham Hospital, Boston 

1966–1968 Physicist, Lawrence Livermore Laboratory  

1968–1976 Medical Director, Medical Services, Lawrence Berkeley Laboratory 

1968–1988 Research Physician, Donner Laboratory  

1974 Visiting Professor, University of Cincinnati

1976–1988 Head, Research Medicine Group, Donner Laboratory 

1976–2008 Professor, Department of Electrical Engineering and Computer Sciences,
University of California, Berkeley 

1976–2008 Henry Miller Professor of Medical Research  

1976–2008 Faculty Senior Scientist, Lawrence Berkeley National Laboratory 

1980-2000 Director, Donner Medical Group 

1982–1985 Chairman, Diagnostic Radiology Study Section (NIH) 

1984–1985 President, Society for Magnetic Resonance in Medicine 

1984–2008 Professor, Department of Radiology, University of California, San Francisco
Medical Center 

1984-1985 President, Society for Magnetic Resonance in Medicine 

1988–1992 Director, Division of Research Medicine and Radiation Biophysics, LBNL 

1990 Visiting Professor, University of Pennsylvania 

1992–2006 Head, Dept. of Functional Imaging, Lawrence Berkeley National Laboratory 

1991–1996 Adjunct Professor, The Hospital of the University of Pennsylvania 

1993–1997 Director, Magnetic Resonance Science Center and Research PET, University of California, San Francisco

1998–2004 Chair, Department of Bioengineering, University of California, Berkeley 

1998–2008 Professor, Department of Bioengineering, University of California, Berkeley 

2006–2007 President, Society for Molecular Imaging 

CF Biography for current positions