Astronaut Radiation Dose Calculation With a New Galactic Cosmic Ray Model and the AMS‐02 Data

We present a new calculation of the astronaut dose rate from galactic cosmic rays in free space at 1 AU. use unshielded isotropic fluence-to-dose conversion coefficients given International Commission on Radiological Protection publication 123. A 3D and time-dependent solar modulation model based Parker's transport equation as originally developed Song et al. (2021, https://doi.org/10.3847/1538-4365/ac281c) is used to calculate ray spectra This uses recent local interstellar Corti (2019, https://doi.org/10.3847/1538-4357/aafac4), M. J. Boschini (2020, https://doi.org/10.3847/1538-4365/aba901, 2021a, https://doi.org/10.3847/1538-4357/abf11c) reproduce PAMELA AMS-02 observations between 2006 2019. The radiation calculated our same rigidity region agrees better than 1% for proton helium way, 2% level six most contributing elements averaged over 7 or 8.5 years. analysis 13 years shows an effective equivalent 55–58 cSv/yr minimum (January 2010) 26 maximum (February 2014).