Characterization of the LEMA isotope separator to measure concentrations of Be-10 from atmospheric filters
Por:
De Los Rios, K., Mendez-Garca, C., Padilla, S., Solis, C., Chavez, E., Huerta, A., Acosta, L.
Publicada:
1 ene 2018
Categoría:
Physics and astronomy (miscellaneous)
Resumen:
The understanding and measurement of Be-10 is useful for earth science.
Its way of production, deposition and mainly half-life allow
phenomenological reconstructions of great interest on this area. In
order to characterize the 1 MV isotope separator of the National AMS
Laboratory LEMA (Laboratorio de Espectrometria de Masas con
Aceleradores) at Mexico City for the measurement of Be-10
concentrations, atmospheric filters with aerosols content were used. The
filters were processed with a radio-chemical extraction procedure
detailed here. Then, the prepared samples were pressed in cathodes and
measured by using the AMS technique, tuning the machine till focus the
optics on the beryllium peak. The preliminary statistical analysis of
the Be-10/Be-9 ratios obtained from this characterization is presented
in this work. Two statistical methods were used in order to improve the
data information. With them, statistical stability behavior is observed
on different campaigns of measurements. The results obtained comparing
both methods are here discussed.
Filiaciones:
De Los Rios, K.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Mendez-Garca, C.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Padilla, S.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Solis, C.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Chavez, E.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Huerta, A.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
Acosta, L.:
Univ Nacl Autonoma Mexico, Inst Fis, Apartado Postal 20-364, Mexico City 01000, DF, Mexico
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