mixed radiation NSRL Galactic Cosmic Ray Simulation NSRL GCRSim The NSRL Galactic Cosmic Ray Simulation is comprised of seven different species of ion, and fourteen different energies of H and He for 33 separate beams in a single GCRSim exposure. (https://www.bnl.gov/nsrl/userguide/GCRSim.php) The samples were irradiated using the NSRL Galactic Cosmic Ray Simulation. NSRL GCRSim