The isotopic composition of solar flare accelerated neon

R. A. Mewaldt, J. D. Spalding, E. C. Stone, R. E. Vogt
1979 Astrophysical Journal  
The individual isotopes of neon in energetic solar flare particles have been clearly resolved with arms mass resolution of 0.20 amu. We find 20 Ne/ 22 Ne = 7.6 ( +2.0, -1.8) and 21 Ne/ 22 Ne < 0.11 in the 11-26 MeV per nucleon interval. This isotopic composition is essentially the same as that of meteoritic planetary neon-A and is significantly different from that of the solar wind.
doi:10.1086/183012 fatcat:sqqwc6ce5rcm3oex6j2odxbyf4