The activity estimation of hand-size specimens of uraniferous minerals is not a trivial issue due to the manipulation difficulty caused by the emitted ionising radiation and the dependence of radiometric quantities from several parameters. Sample modelling requires approximations, leading to large uncertainty in the evaluation of the activity.In this work, a new procedure to evaluate uraniferous specimens activity, including a detailed description of measured parameters, the instrumentation and the mathematical formulation of the process, is presented. The proposed methodology takes into consideration sample size, ore composition and measured radiation.The procedure was used to measure the activity of a group of uraniferous mineral specimens belonging to Natural History Museum of the University of Florence, Italy. The experimental set-up was designed to reduce the measurement uncertainty. The aim of this work is to propose a methodology that can be easily applied to the specimens manipulation, conservation and exhibition.

Activity estimation when dealing with collections of uraniferous minerals / Fedeli Luca, Doria Sandra, Moggi Cecchi Vanni, Cupparo Ilaria, Fabrizi Lucilla, Gori Cesare. - In: RADIATION PROTECTION DOSIMETRY. - ISSN 0144-8420. - STAMPA. - 198:(2022), pp. 175-187. [10.1093/rpd/ncac005]

Activity estimation when dealing with collections of uraniferous minerals

Fedeli Luca
Methodology
;
Doria Sandra
Conceptualization
;
Moggi Cecchi Vanni
Data Curation
;
Cupparo Ilaria;Fabrizi Lucilla;Gori Cesare
2022

Abstract

The activity estimation of hand-size specimens of uraniferous minerals is not a trivial issue due to the manipulation difficulty caused by the emitted ionising radiation and the dependence of radiometric quantities from several parameters. Sample modelling requires approximations, leading to large uncertainty in the evaluation of the activity.In this work, a new procedure to evaluate uraniferous specimens activity, including a detailed description of measured parameters, the instrumentation and the mathematical formulation of the process, is presented. The proposed methodology takes into consideration sample size, ore composition and measured radiation.The procedure was used to measure the activity of a group of uraniferous mineral specimens belonging to Natural History Museum of the University of Florence, Italy. The experimental set-up was designed to reduce the measurement uncertainty. The aim of this work is to propose a methodology that can be easily applied to the specimens manipulation, conservation and exhibition.
2022
198
175
187
Fedeli Luca, Doria Sandra, Moggi Cecchi Vanni, Cupparo Ilaria, Fabrizi Lucilla, Gori Cesare
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1312712
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