Physics
Scientific paper
Aug 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....5..379n&link_type=abstract
In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 5 p 379-381 (SEE N85-34991 23-93)
Physics
Cosmic Rays, Periodic Variations, Radiant Flux Density, Solar Activity Effects, Solar Cycles, Xenon 129, Flux (Rate), Iodine Isotopes, Neutron Flux Density, Tellurium, Time Series Analysis, Troilite, Xenon Isotopes
Scientific paper
A new 129 to 129 Xe method to obtain cosmic ray exposure ages and to study the average cosmic ray flux on a 10 to the 7th power to 10 to the 8th power year time-scale was developed. The method is based on secondary neutron reactions on Te in troilite and the subsequent decay of 129I, the reaction product to stable 129 Xe. The first measurements of 129 I and 129 Xe in aliquot samples of a Cape York troilite sample are reported.
Arnold James R.
Marti Kurt
Murty Sripada V. S.
Nishiizumi Kuni
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