In situ produced 10Be measurements at great depths: implications for production rates by fast muons

Details In situ produced 10Be measurements at great depths: implications for production rates by fast muons In situ produced 10Be measurements at great depths: implications for production rates by fast muons

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003e%26psl.211..251b&link_type=abstract

Earth and Planetary Science Letters, Volume 211, Issue 3-4, p. 251-258.

Computer Science

23

Scientific paper

In situ cosmogenic 10Be values have been used to investigate a Brazilian quartz vein from the surface to a depth of 15 m. At depths greater than 1000 g/cm2, deep enough for neutron-induced reactions to be insignificant, there is only a slight decrease in 10Be concentration with increasing depth. Our results are consistent with deep production of 10Be by a mechanism, presumably induced by fast muons, with an attenuation length of 5300+/-950 g/cm2 and a contribution of 0.65+/-0.25% to the total surface production. Results are compared with values from the literature and implications of this re-evaluation are discussed.

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