Dr Papagiannis serves as an Associate Professor in the Medical Physics Lab. of the National and Kapodistrian University of Athens Medical School.
His current professional service includes membership in: the ESTRO BRAchytherapy PHYsics Quality Assurance System, the scientific advisory group for brachytherapy in ESTRO conferences, the teaching faculty of the ESTRO Advanced Brachytherapy Physics course that runs biennially, and the AAPM Model Based Dose Calculation Algorithms Working Group and Working Group on Brachytherapy Dosimetry.
He has co-authored over 70 publications in international journals (Author IDs: Scopus, Orchid, Google Scholar). His research interests focus on radiation therapy with emphasis on Brachytherapy treatment planning dose verification & QA, computational and experimental dosimetry, and translational research for assessing the benefit of integrating elements of basic-research to clinical practice.