Emmanouil Papanastasiou was born in Kozani Greece, on the 18 January 1968. He obtained his B.Sc. degree in Physics from the Aristotle University of Thessaloniki in 1990. In 1991 he obtained his M.Sc. degree in Medical Physics from the University of Surrey, UK. In 2005 he was awarded his PhD degree from the Medical School of the Aristotle University of Thessaloniki. From 1997 to 2018 he has been working as a medical physicist at the AHEPA University Hospital in Thessaloniki. Since 2018 he is Ass. Professor of Medical Physics at the School of Medicine of the Aristotle University of Thessaloniki. He is a co-author in more than 20 research articles and 50 abstracts in international peer-reviewed journals and proceedings of international conferences. His research interests include radiation protection, dosimetry and image quality in nuclear medicine and diagnostic and interventional radiology.