Measurement of44Ti(44Sc) in meteorites |
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Authors: | G. Bonino |
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Affiliation: | (1) Istituto di Fisica Generale dell'Università di Torino, Torino;(2) Istituto di Cosmogeofisica del CNR, Torino |
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Abstract: | Summary The measurement of44Ti produced by spallation reaction of cosmic rays in meteorites fell in the last hundred years can be used for investigations on century-scale variations of solar activity. The low specific activity and the interferences of natural background and of meteorite gamma emitters are the main difficulties to be surmounted in this measurement. A selective γ-spectrometer consisting of a HP Ge and a NaI(T1) detectors in coincidence and anticoincidence has been set up in the underground (70 m w.e.) Laboratory of Monte dei Cappuccini, which allows to obtain a reliable measurement of44Ti(44Sc). |
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Keywords: | Cosmic-ray effects in meteorites and terrestrial matter |
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