Since 1998, Ben Slotman has served as Professor and Chair of the Department of Radiation Oncology at Vrije Universiteit Medical Center (VUmc) in Amsterdam, The Netherlands. Dr. Slotman received his MD (1985) and PhD (1990) both with highest honor at VU University in Amsterdam, The Netherlands and he was registered as radiation oncologist in 1994. He was also chairman of one of the six divisions of the hospital and medical faculty between 2006 and 2016. Professor Slotman is the (co)-author of about 350 peer-reviewed publications in international journals. His expertise lies mainly in the field of radiotherapy for lung and brain malignancies and the early clinical implementation of new technologies. He has (co-)organized various international conferences and has coordinated a number of international trials. He is associate editor of the J Radiosurgery & SBRT. He is an active member of NVRO, ESTRO, ASTRO, ASCO, ARS, IASLC, ISRS and RSS. He is board member of the Radiosurgery Society (RSS), was board member of the Int. Sociiety for Radiosurgery (ISRS) and is President of the American Radium Society.As of April 2018, he is President-elect of the European Society for Radiotherapy and Oncology (ESTRO)