By exploiting experimental results, the combined effort of the physicists involved with the Galprop model for propagation in galaxy and HelMod for the propagation in heliosphere, the local interstellar spectra (LIS) for Galactic Cosmic Rays species up to Z=28 (Nickel) were derived. At present, the HelMod modulated spectra framework does not include ultra-heavy galactic cosmic ray ions (UHGCRs, i.e., GCRs with Z>28) due to their expected negligible contribution to the radiation risk evaluation (e.g., SEE rate) in space, particularly when compared to the impact of iron (see Appendix A in Boschini et al. 2024). HelMod model allows one to derived the ion modulated spectra from the corresping LIS. These spectra are available and accessible from the current webpage.
Data Base Current Availabity:
