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Radiation Protection Dosimetry Advance Access originally published online on October 6, 2008
Radiation Protection Dosimetry 2008 131(1):51-58; doi:10.1093/rpd/ncn238
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Validation of modelling the radiation exposure due to solar particle events at aircraft altitudes

P. Beck1,*, D. T. Bartlett2, P. Bilski3, C. Dyer4, E. Flückiger5, N. Fuller6, P. Lantos6,{dagger}, G. Reitz7, W. Rühm8, F. Spurny9, G. Taylor10, F. Trompier11 and F. Wissmann12

1 Austrian Research Centers, ARC, Radiation Safety and Applications Division, A-2444 Seibersdorf, Austria
2 Health Protection Agency, London, UK
3 Institute of Nuclear Physics, Krakow, Poland
4 QinetiQ, Space Division, Dartford, UK
5 University of Bern, Bern, Switzerland
6 Paris-Meudon Observatoire, Meudon, France
7 Radiation Biology Department, German Aerospace Center, Cologne, Germany
8 Helmholzentrum München, Institute of Radiation Protection, Neuherberg, Germany
9 Czech Academy of Science, Department of Radiation Dosimetry, Nuclear Physics Institute, Prague, Czech Republic
10 National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW, UK
11 Institute de Radioprotection et de Sûreté Nucléaire, Villejuif, France
12 Physikalisch-Technische Bundesanstalt, D-38116 Braunschweig, Germany

* Corresponding author: peter.beck{at}arcs.ac.at

Dose assessment procedures for cosmic radiation exposure of aircraft crew have been introduced in most European countries in accordance with the corresponding European directive and national regulations. However, the radiation exposure due to solar particle events is still a matter of scientific research. Here we describe the European research project CONRAD, WP6, Subgroup-B, about the current status of available solar storm measurements and existing models for dose estimation at flight altitudes during solar particle events leading to ground level enhancement (GLE). Three models for the numerical dose estimation during GLEs are discussed. Some of the models agree with limited experimental data reasonably well. Analysis of GLEs during geomagnetically disturbed conditions is still complex and time consuming. Currently available solar particle event models can disagree with each other by an order of magnitude. Further research and verification by on-board measurements is still needed.

{dagger} Deceased.


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