Eu000bects of Nuclear Interactions on Accuracy of Space Radiation Transport

摘要

Space radiation risk to astronauts is a major obstacle in long duration human spacernexplorations. Space radiation transport codes have been developed to calculate radiation eu000bects be-rnhind materials in human missions to the Moon, Mars or beyond. We study how uncertainties inrnfragmentation cross sections au000bect the accuracy of predictions from such radiation transport. Wernfnd that cross sections between 0.3 and 0.85 GeV/u usually have the largest eu000bect on dose-equivalentrnbehind materials for solar minimum GCR environments, and cross sections between 0.85 and 1.2rnGeV/u have the largest eu000bect for solar maximum GCR environments. Eu000bects on the elementalrnenergy spectra behind materials have also been studied.