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Helmholtz-Zentrum München, German Research Center for Environmental Health, Germany

The HMGU (former name until 1.1.2008: GSF) is a member of the Hermann von Helmholtz Association of National Research Centres and is managed as a limited non-profit company. Funding is made available to 90 % of the Federal Republic of Germany and to 10 % of the State of Bavaria. HMGU has approximately 1500 employees. Research is focused on activities related to the protection of man and his environment from harmful effects resulting from radiation and chemicals, as well as the utilisation of scientific and technical knowledge to improve environmental protection and health care.

The Institute of Radiation Protection has about 40 scientists and 20 technicians, together with a number of undergraduate and postgraduate students and foreign guests. Research aims include

  • Improvement in the protection from ionising radiation of the population and of areas of radio-ecology, personal dosimetry, internal dosimetry, and the dosimetry of radon and its progenies.
  • Optimisation of the use of ionising radiation in medical applications (X-ray diagnostics and radiation therapy).
  • Quantification of the somatic health risks from low radiation doses to individuals in the population and to occupationally exposed persons.
  • Improvement of concepts, recommendations and regulations in radiation protection.

In the Risk Analysis Group of the institute research is focused on analyses of risks from radiation exposure at the workplace and from radio-nuclides in the environment.

Dr. Jan Christian Kaiser holds a Diploma (1988) and a PhD (1993) in Statistical Physics from the Free University Berlin. He is the co-developer and maintainer of a software package to estimate parameters in hydrologic flow models with optimisation algorithms. In 2000 he joined the Risk Analysis Group, where he analysed biologically-based cancer induction models to describe radiation hazards with statistical methods. Within the EURANOS project of FP6 he is leading the work package on “Development and integration of inhabited areas models including data assimilation”. There his main activities include the development and application of data assimilation tools to map the radioactive contamination in the environment on both small and regional scales. The resulting tools are integrated into the RODOS and ARGOS DSS. Christian is a member of the EMRAS working group on “Urban modelling” at the IAEA.

Dr. Gerhard Pröhl is a scientist at the Risk Analysis Group. He has long experience in the field of environmental transfer of radionuclides and dose assessment. His activities cover experimental studies concerning the transfer of radionuclides in the environment, the development and validation of models for estimating exposure subsequent to accidental releases of radionuclides, the development of models for dose assessment for the purpose of long-term safety studies of nuclear waste disposals, dose reconstruction for the population living in and evacuated from areas contaminated by the Chernobyl accident. He was involved in the EU projects FASSET and ERICA and coordinated the EU-funded project BioMoSA. He is member of the ICRP Committee 5 and member of the Committee “Radioecology” of the German Commission of Radiation Protection.