G.W.(Eddie) Barendsen was born in 1927 in the town Groningen, The Netherlands. After finishing high school in 1945, he studied at the State University Groningen. The main subjects were mathematics, physics, chemistry and astronomy, with philosophy and psychology as extra-curricular interests The candidate degree was awarded early in 1948. These studies were interrupted in 1948 due to the obligatory draft in the Dutch army. He finished the military duties as communications officer in early 1950. The doctoral degree was awarded in 1953. From late 1950 he carried out experiments on proportional counters filled with CO2 at high pressures applied for age determinations of archaeological and geological specimens by the measurement of their C-14 radioactivity. He obtained his PhD from Groningen University in 1955. The title of the thesis: “Age determination by measurement of radioactive carbon”. From 1955 to 1956 he continued research on radiocarbon dating as a research associate at the Geochronometric Laboratory of Yale University, New Haven, USA, implementing the proportional counter system developed at Groningen University and developing a scintillation counting system for the C-14 radioactivity. In 1956 he started radiation research as the first biophysicist staff-member and later associate-director of the newly founded Radiobiological Institute (RBI), part of the Health Organization of the Organization for Applied Scientific Research (TNO) in Rijswijk, The Netherlands (1956-1990). From 1957 to 1992 he carried out and guided investigations in biophysics, radiobiology and experimental oncology: A, Effectiveness of different types of ionising radiations for damage to mammalian cells in culture. B, Effectiveness of X-rays and fast neutrons for responses of transplantable tumours in animals C, Studies of late responding normal tissues in animals after irradiation with fractionated doses of X-rays and fast neutrons D, Clinical applications of fast neutrons in the RBI and in the Netherlands Cancer Centre, A v Leeuwenhoek Hospital, Amsterdam, with Dr.K. Breur, Dr. H. van Peperzeel, Dr. J. Broerse and Dr. J. Batterman. E , Studies on chromosome aberrations and cell transformation in cultured mammalian cells with Dr. J Zoetelief, RBI, Rijswijk and Dr. J.A.Aten and Dr. N.A.P.Franken, Laboratory for Radiobiology and Experimental Oncology, Medical Faculty, University of Amsterdam. F, Studies on combined radiotherapy-chemotherapy effectiveness with cultured cells and experimental tumours G, Microdosimetry of high-LET particles
University appointments. 1958-1970, Lecturer, Institute for Radiation Pathology and Radiation Protection, Leiden University 1968, Visiting Professor, Department of Biophysics, University of California at Berkeley, USA. 1968-1970, Associate Professor in Experimental Radiotherapy, Erasmus University, Rotterdam. 1970-1992, Professor of Radiobiology and Experimental Oncology, Medical Faculty, University of Amsterdam. 1984, Consultant Life Sciences Division, Los Alamos Scientific Laboratory, NM, USA 1992---, Emeritus Professor, University of Amsterdam
Memberships societies and councils (selection) Netherlands Society for Radiobiology (1959-- ), Secretary-Treasurer (1967-1974), President (1974-1976) Health Council of The Netherlands (1968-1997). Committee Radiation Hygiene. Queen Wilhelmina Fund, Dutch Cancer Society, Scientific Council, (1978-1992). Dutch Organization for Biophysics, Councillor (1968-1974). Maurits and Anna de Kock Fund for the promotion of cancer research, Secretary (1974-1993) and chairman (1981-1993). Inter-University Institute Radiation Pathology and Radiation Protection, member of the board (1980-1992), chairman scientific advisory board (1992-2005). Department of Therapeutic and Biological Radiology, Medical faculty, University of Amsterdam, chairman 1980-1992. International Commission on Radiological Protection (ICRP), member and vice-chairman Committee 1 (1968-1992) International Association Radiation Research (ICRR), Councillor (1970-1979) European Organization for Nuclear Research (CERN), Geneva, Advisor Radiobiology (1974-1092). European Organization for Research on treatment of Cancer (EORTC) Secretary fast neutron therapy project group (1978-1982). International Union on Pure and Applied Biophysics, Committee on Radiation and Environmental Biophysics (1974-1978). Scientific Programme Committee 7th International Congress Radiation Research, held in Amsterdam 1983, Chairman 1979-1983.
Awards: 1950: Royal Dutch Shell student award for personal development. 1976: Dutch Radiological Society, Wertheim-Salomonson award. 1986: European Society for Radiation Oncology, Klaas Breur award 1990: Order of Oranje Nassou, Officer 1998: European Society for Radiation Biology, Bacq and Alexander award.
Publications: More than 300 in scientific journals. Co-editor of several volumes on High-LET radiotherapy Promotor- Thesis-advisor of about 30 PhD candidates Editorial Boards: International Journal of Radiobiology, Biomedicine, Radiotherapy and Oncology, Journal European de Radiotherapy, Oncology, Radiophysique, Radiobiologie.