statistics 1000000 unresolved 0 longterm radioact 1 pl index 4. le cutoff 1. thin/thick 2 ambient abundances hydrogen 1.000000 helium 0.084000 carbon 0.000311 nitrogen 0.000093 oxygen 0.000741 neon 0.000185 magnesium 0.000145 aluminum 0.000012 silicon 0.000113 sulfur 0.000024 calcium 0.000008 iron 0.000099 accelerated particle abundances protons 1.000000 alphas 0.500000 helium-3 0.250000 carbon 0.005109 nitrogen 0.001348 oxygen 0.010870 neon 0.004957 magnesium 0.006522 aluminum 0.000522 silicon 0.004891 sulfur 0.001043 calcium 0.000359 iron 0.014130