- Workshop on Biomedical Instrumentation and Related Engineering and Physical Sciences. (BIOMEP 2013)
- International Conference on Biomedical Instrumentation and Related Engineering and Physical Sciences. (BIOMEP 2013)
- 8th European Conference on Medical Physics (ECMP2014), Athens, Greece, September 11-13, 2014.
- International Conference on Biomedical Instrumentation and Related Engineering and Physical Sciences. (BIOMEP 2015). June 18-20, Athens
- International Conference “Science in Technology” (SCinTE 2015).
- International Conference on Biomedical Instrumentation and Related Engineering and Physical Sciences. (BIOMEP 2017). October 2017, Athens
- Guest Editors (Kandarakis, Fountos, Valais, Michail) of Volume 637 (2015) of the Journal of Physics: Conference Series.
- Guest Editors (Kandarakis, Fountos, Valais, Michail) of Volume 931 (2017) of the Journal of Physics: Conference Series.
- Editorial Board of the Hellenic Journal of Nuclear medicine. (G. Fountos)
- Guest Editors: Special Issue “Development and Application of Novel Dual Energy X-ray Imaging Methods” in Crystals. (G. Fountos, C. Michail)
- Guest Editor of the Special Issue “Radiation Detectors and Sensing Technologies for Biomedical Applications” in Sensors journal (IF 3.9) (C. Michail).