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http://hdl.handle.net/2248/5297
Title: | A multiparametric HPGe-NaI acquisition system for low gamma activity measurements of meteorites |
Authors: | Taricco, C Bhandari, N Colombetti, P Mariani, I Neeharika, V Vivaldo, G |
Keywords: | Sun: activity – Meteoroids – Cosmic rays Sun: magnetic fields – Techniques Gamma spectroscopy Sunspots Interplanetary medium Solar-terrestrial relations |
Issue Date: | 2010 |
Publisher: | Societa Astronomica Italiana |
Citation: | Memorie della Societa Astronomica Italiana Suppl, Vol. 14, pp. 177 - 179 |
Abstract: | The study of long-term solar activity variations in the past requires the use of radioisotopic data planetary reservoirs. At the Laboratory of Monte dei Cappuccini in Torino (IFSI-Torino, INAF) for many years we have been studying radioisotopes in meteorites, because their production, which is related to galactic cosmic ray flux in the heliosphere, is anticorrelated with the heliospheric magnetic field variations. We have developed very sensitive gamma detection techniques, in particular to measure 44Ti activity in meteorites; due to its half-life (t1=2 = 59:2 years), this radioisotope is an ideal index to reveal the imprint of solar activity variations on the centennial scale. Recently we have improved the spectrometer by a new multiparametric acquisition system, which allows to extract efficiently the 44Ti peak from the natural background. |
URI: | http://hdl.handle.net/2248/5297 |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
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A multiparametric HPGe-NaI acquisition system | 366.01 kB | Adobe PDF | View/Open |
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