Physics
Scientific paper
Jul 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.1957f&link_type=abstract
Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I
Physics
Scientific paper
A Markov sto chastic method [8] is employed to study cosmic ray propagation in the galaxy using a halo diffusion model. The result is an energy dependent path-length probability distribution that is combined with a weighted slab calculation to determine the production of secondary cosmic ray nuclides. The flexibility of this method allows the seamless incorporation of the low density local bubble surrounding the Solar system. While the effects of the local bubble on the primary to secondary abundance ratios of stable isotop es in minimal, the effect on unstable secondaries particulary such relatively short lived isotop es as 36 C l (half-life 0.3 Myr), is significant.
Connell James J.
Farahat A. M.
Rassoul Hamid
Zhang Minghui
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