Effect of “Noisy” sun conditions on aircrew radiation exposure |
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Authors: | B.J. Lewis A.R. Green L.G.I. Bennett |
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Affiliation: | Department Of Chemistry and Chemical Engineering, Royal Military College Of Canada, P.O. Box 17000, Kingston, Ont., Canada K7K 7B4 |
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Abstract: | In computer codes used to estimate the aircrew radiation exposure from galactic cosmic radiation, a quiet sun model is usually assumed. A revised computer code (PCAIRE ver. 8.0f) is used to calculate the impact of noisy sun conditions on aircrew radiation exposure. The revised code incorporates the effect of solar storm activity, which can perturb the geomagnetic field lines, altering cutoff rigidities and hence the shielding capability of the Earth’s magnetic field. The effect of typical solar storm conditions on aircrew radiation exposure is shown to be minimal justifying the usual assumptions. |
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Keywords: | Aircrew radiation exposure Cutoff rigidity Noisy sun conditions Solar particle event Cosmic radiation |
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