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A new dynamical atmospheric ionizing radiation (AIR) model for epidemiological studiesA new Atmospheric Ionizing Radiation (AIR) model is currently being developed for use in radiation dose evaluation in epidemiological studies targeted to atmospheric flight personnel such as civilian airlines crewmembers. The model will allow computing values for biologically relevant parameters, e.g. dose equivalent and effective dose, for individual flights from 1945. Each flight is described by its actual three dimensional flight profile, i.e. geographic coordinates and altitudes varying with time. Solar modulated primary particles are filtered with a new analytical fully angular dependent geomagnetic cut off rigidity model, as a function of latitude, longitude, arrival direction, altitude and time. The particle transport results have been obtained with a technique based on the three-dimensional Monte Carlo transport code FLUKA, with a special procedure to deal with HZE particles. Particle fluxes are transformed into dose-related quantities and then integrated all along the flight path to obtain the overall flight dose. Preliminary validations of the particle transport technique using data from the AIR Project ER-2 flight campaign of measurements are encouraging. Future efforts will deal with modeling of the effects of the aircraft structure as well as inclusion of solar particle events. Published by Elsevier Ltd on behalf of COSPAR.
Document ID
20040087415
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
De Angelis, G.
(Old Dominion University Norfolk, VA 23508, United States)
Clem, J. M.
Goldhagen, P. E.
Wilson, J. W.
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Advances in space research : the official journal of the Committee on Space Research (COSPAR)
Volume: 32
Issue: 1
Subject Category
Meteorology And Climatology
Funding Number(s)
CONTRACT_GRANT: NCC1-404
Distribution Limits
Public
Copyright
Other

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