Hover over presenter’s name to see the biography, and over talk title to see talk abstract.

Olivera Ciraj-Bjelac,
Olivera Ciraj-Bjelac is a Research professor in Radiation and environmental protection department of Vinca Institute of Nuclear Sciences in Belgrade, Serbia and Full professor at School of Electrical Engineering, University of Belgrade, Serbia. For 23 years she has been working in the area of medical physics, in particular in dosimetry and radiation protection in medicine. She is the author of more than 60 scientific papers published in peer-reviewed journals and two book chapters, mainly on radiation protection and dosimetry in medicine.
Vinca Institute of Nuclear Sciences, University of Belgrade, Serbia,
Current challenges in radiation protection in medicine
Medical use of ionizing radiation has been a major contributor to the population dose from man-made sources of radiation for many years. Current issues in radiation protection of patients include not only the rapidly increasing collective dose to the population, but also that a substantial percentage of diagnostic imaging examinations are unnecessary, and the cumulative dose to individuals from medical exposure is growing. Therefore, a number of new challenges have emerged in recent years with regard to a various issues related to use of ionizing radiation in medicine. Inevitably, major issues of protection pertain to high dose procedures, as interventional procedures, computed tomography and hybrid imaging and sensitive population groups as children and females of reproductive capacity. The challenges have been brought to different professionals groups and stakeholders as dosimetrists, radiation biologists, patients, referring physicians, radiologists, radiographers, medical physicists and manufacturers. This talk explores these issues with special emphasis on the appropriates of medical exposures, dose tracking and optimization of practice, impact on new technologies and accident prevention. Activities of relevant international organization is also discussed.
Alexandra Ioannidou,
Alexandra IOANNIDOU is Assoc. Professor at Aristotle University of Thessaloniki, Physics Department, Nuclear Physics Laboratory. Research expertise on radiation physics and isotopes, radiation protection and environmental radioactivity – radioecology, environmental radioactivity from Chernobyl and Fukushima accident and effects of radioactive pollutants by their dispersion, contamination and decontamination of ecosystems, as well as on radioactive aerosols and their behavior in various environments including Arctic. She has steady interaction with the international scientific community through joint research projects, publications in International Journals, conferences and meetings and working in institutes abroad. She is reviewer in more than 20 International Scientific Journal and she has more than 100 publications in International Journals and Conferences with more than 1000 citations.
Aristotle University of Thessaloniki, Physics Department, Greece,
Radioactive aerosol particles in different environments and under different meteorological conditions
Soon after their formation, radioactive nuclides are attached to atmospheric aerosol particles and participate in the formation and growth of the accumulation mode of aerosol particles (from 0.1 to 2 μm). In this talk, the basic features and definitions of radioactive aerosols together with the appropriate instrumentation that is used for studying radioactive aerosol particles and their behavior in the atmosphere will be presented. The behavior of naturally occurring radioactive aerosol particles (especially 210Pb and 7Be) and their behavior in various environments, including the Arctic, will be discussed. Specifically, 7Be with the advantage of relatively easy determination and a life-time long enough to allow for long-distance transport and short enough to prevent long-term accumulation of the isotope in large reservoirs and has been widely used as a tracer in atmospheric science. The consequences of nuclear tests and nuclear accidents due to the dispersion of aerosol particles in short and long distances as well as the size distribution of radioactive aerosol particles in many European countries immediately after the Chernobyl and Fukushima accident will be also presented.
Sheldon Landsberger,
Dr. Landsberger is a Professor in the Nuclear and Radiation Engineering technical area in the Walker Department of Mechanical Engineering at the University of Texas. He has served on the faculty of the Cockrell School of Engineering since 1997. He has published more than 245 peer-reviewed papers and more than 160 conference proceedings mainly in nuclear analytical measurements and their applications in nuclear forensics, natural radioactivity and environmental monitoring of trace and heavy metals. In 2007 he received the Arthur Holly Compton award from the American Nuclear Society for outstanding achievements in education in nuclear science and engineering for designing and implementing one of the most advanced distance learning programs in the nation for nuclear engineers. In 2005 he received the Glenn Murphy Award from the Nuclear and Radiological Division of the American Society of Engineering Education, recognizing his notable professional contributions to the teaching of undergraduate and graduate nuclear engineering students. He currently holds the Robert B. Trull Chair in Engineering.
University of Texas, USA,
Radioactivity in the oil exploration sector
One of the very first papers describing radioactivity in oil extraction appeared in 1906 just a scant eight years after its discovery by Henri Bequerel in Paris 1896. The world currently consumes about100 million barrels of oil daily and is produced in countries throughout the globe through onshore drilling which refers to drilling deep holes under the earth's surface and offshore drilling which relates to drilling underneath the seabed. It was only in the late 1970’s and early 1980’s where a significant amount of research was done in characterizing the radioactivity in extraction processes which included, scale, produced water, sludge, etc. What is more surprising than the unexpected amounts of radioactivity in the oil extraction sector is the orders of magnitude differences of radiation from different onshore fields. Thus, handling of these radioactive by products including transportation, clean-up procedures, and burial requires stringent training and monitoring procedures. A detailed overview of radioactivity measurements and radiation protection guidelines for the oil exploration sector of the waste products will be presented.
Annette K. Larsen, Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine (CRSA); Institut National de la Santé et de la Recherche Médicale (INSERM) U938; Institut Universitaire de Cancérologie (IUC), Faculté de Médecine, Sorbonne Université; Centre National de la Recherche Scientifique (CNRS); Paris, France, The vascular tumor microenvironment: new challenges and therapeutic targets