University of Utrecht (Physics) Free University Hospital Amsterdam (PhD in nuc.med 1988-1993) Medical physics training in Erasmus MC Rotterdam (1994-1998) Haga Teaching Hospital (1998-2008), Manager of medical instrumentation Radiation Protection Officer Medisch Spectrum Twente (2008-now). Medical physicist for radiology and nuc.med. (2008-2015) Radiation Protection Officer (2002-2019) Guest Lecturer University of Twente (2020-now)