Calculation of the radiobiological effects of heavy ions on eggs of Artemia salina flown in the Biostack experiments.
By factorizing fragmentation cross-sections of ions into a projectile and a target-depending part, their flux inside a space vehicle can be calculated. This factorization was found at Bevalac for high-energy oxygen and carbon ions. With some restrictions, an extension of the factorization law to heavier nuclei up to iron is indicated by cosmic-ray data. Using this factorization the known cross-sections for the fragmentation of heavy ions (Z=6-26) in collisions with protons were extrapolated to heavier target nuclei and the energy spectra of nuclei of different charges in the interior of' the Biostack were calculated. The theory of Katz was applied to estimate the heavy-ion-induced radiation damage in Artemia salina. The results are compared with experiment.
Heinrich
W
W
Fachbereich Physik, Gesamthochschule Siegen, Siegen, FRG.
D000818:Animals; D001156:Artemia / Q000528:radiation effects*; D003359:Cosmic Radiation; D020450:Heavy Ions; D018499:Linear Energy Transfer; D008962:Models, Theoretical; D011829:Radiation Dosage; D011853:Radiobiology; D013026:Space Flight; D014893:Weightlessness; D015053:Zygote / Q000528:radiation effects*