K. D. L. Ríos, C. Méndez-García, L. Acosta, R. García-Martínez, M. A. Martínez-Carrillo, M. E. Ortiz
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Preliminary Measurements of Be-10/Be-7 Ratio in Rainwater for Atmospheric Transport Analysis
The meteoric cosmogenic beryllium has been used as an essential geophysical tracer in the analysis of atmospheric flows and erosion soils since 1960. The first measurements Be-7 and Be-10 concentrations in rainwater from Mexico, have been carried out by using gamma decay spectroscopy and AMS techniques, respectively for each isotope. With this it was possible to report a preliminar value for the Be-10/Be-7 isotopic ratio in such environmental samples. The present work described preliminary results related to rainwater collected at mountain and metropolitan areas. Results are compared with predictions and previous measurements for both radioisotopes, observing a very sensible behavior particularly for the case of Be-7 activities.
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