Calculation of radiation protection quantities in tissue equivalent material from measurements using semiconductor detectors requires correction factors for conversion of the measured values in the semiconductor material to the tissue equivalent material. This approach has been used many times in aircraft and for space dosimetry. In this paper, we present the results of Monte Carlo simulations which reveal the need to take into account both the radiation field and the detector material when performing the conversion of measured values to radiation protection quantities. It is shown that for low Z target material, most of the dose equivalent at aviation altitudes comes from neutrons originating from nuclear reactions, while in high Z targets most of the dose equivalent comes from photons, originating from electromagnetic reactions.

Czech Technical University Prague Faculty of Nuclear Sciences and Physical Engineering Prague Czech Republic

Nuclear Physics Institute of the CAS Department of Radiation Dosimetry Řež Czech Republic

Nuclear Physics Institute of the CAS Department of Radiation Dosimetry Řež Czech Republic; Czech Technical University Prague Faculty of Nuclear Sciences and Physical Engineering Prague Czech Republic

Nuclear Physics Institute of the CAS Department of Radiation Dosimetry Řež Czech Republic; Technische Universität Wien Atominstitut Vienna Austria; Chalmers University of Technology Department of Physics Gothenburg Sweden

Oklahoma State University Department of Physics Stillwater USA

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