Mathematics – Logic
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994adspr..14..661c&link_type=abstract
Advances in Space Research, vol. 14, no. 10, p. 661-670
Mathematics
Logic
1
Alpha Particles, Biological Effects, Flux Transfer Events, Neutron Scattering, Prediction Analysis Techniques, Solar Corpuscular Radiation, Solar Radiation Shielding, Deuterons, Flux (Rate), Helium Ions, Linear Energy Transfer (Let), Nuclear Reactions, Radiation Dosage
Scientific paper
The Solar Particle Events (SPE) will contain a primary alpha particle component, representing a possible increase in the potential risk to astronauts during an SPE over the often studied proton component. We discuss the physical interactions of alpha particles important in describing the transport of these particles through spacecraft and body shielding. Models of light ion reactions are presented and their effects on energy and Linear Energy Transfer (LET) spectra in shielding are discussed. We present predictions of particle spectra, dose, and dose equivalent in organs of interest for SPE spectra typical of those occurring in recent solar cycles. The large events of solar cycle 19 are found to have substantial increase in biological risk from alpha particles, including a large increase in secondary neutron production from alpha particle breakup.
Cucinotta Francis A.
Golightly Michael J.
Townsend Lawrence W.
Weyland Mark
Wilson William J.
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