Tommaso Beni
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
Transmission-based muography (TM) is becoming an innovative and non-destructive imaging technique based on the measurement of the cosmic ray muon flux attenuation within the matter, allowing the reconstruction of 2D-3D transmission and density polar maps. The presented abstract introduces our latest results about the TM technique measurements we have carried out with the aim of ore bodies prospecting. The case study is the Temperino mine in the San Silvestro Archaeological and Mining Park (Campiglia Marittima, Italy). Here, several magmatic and metasomatic geological units outcrop. Among them, a Cu-Fe-Zn-Pb(-Ag) sulphide skarn complex primarily composed by hedenbergite and ilvaite minerals. The local enrichment in Cu-Fe minerals led to a continuous exploitation of the site for thousands of years. Several direct and destructive techniques were used to detect the enriched Cu-Fe ore shoots (high-density targets) within the skarn bodies. Therefore, not all the available minerals have been detected using these methods. Nowadays, muography can help to detect the location of the remaining ore shoots. The muon imaging method is establishing itself as a cheap and reliable support tool both to the other invasive and non-invasive survey methods in underground mining activities. Using the MIMA detector prototype (Muon Imaging for Mining and Archaeology; cubic detector of 0.5 x 0.5 x 0.5 m3). MIMA is a small and rugged muon tracker developed by physicists of the National Institute for Nuclear Physics (INFN) and the Department of Physics and Astronomy of Florence. The front-end electronics and DAQ of the MIMA detector were implemented on the knowledge and expertise of the MURAVES experiment (MUon RAdiography of VESuvius).
At the Temperino mine several high-density ore shoots has been identified, localized and interpreted. The results of our studies show the potential of muography in this research field.
There is also some issue to solve:
- To correctly estimate the errors within the muon imaging results;
- Find a way to make the installation of the tracker more rapid and easy;
- A priori understanding of the feasibility of the measurements (geological approach);
- To correctly plan the topographical and field survey to achieve a reliable muography campaign.
Tommaso Beni
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
Diletta Borselli
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Geology, University of Perugia, Via Alessandro Pascoli, 06123 Perugia, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Lorenzo Bonechi
(Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Massimo Bongi
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Debora Brocchini
(Parchi Val di Cornia S.p.A., Via Giovanni Lerario 90, 570254 Piombino, Italy)
Roberto Ciaranfi
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy)
Luigi Cimmino
(Department of Physics “Ettore Pancini”, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy; National Institute for Nuclear Physics INFN, Division of Naples, Via Cinthia, 80126 Naples, Italy)
Prof.
Vitaliano Ciulli
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Raffaello D'Alessandro
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Andrea Dini
(Institute of Geosciences and Georesources CNR, 56127 Pisa, Italy)
Catalin Frosin
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Giovanni Gigli
(Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
Dr
Sandro Gonzi
(National Institute for Nuclear Physics INFN, Division of Florence, Via Bruno Rossi 1, 50019, Sesto Fiorentino, Italy; Department of Physics and Astronomy, University of Florence, Via Giovanni Sansone 1, 50019 Sesto Fiorentino, Italy)
Silvia Guideri
(Parchi Val di Cornia S.p.A., Via Giovanni Lerario 90, 570254 Piombino, Italy)
Luca Lombardi
(Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
Massimiliano Nocentini
(Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
Giiulio Saracino
(Department of Physics “Ettore Pancini”, University of Naples Federico II, Via Cinthia 21, 80126 Naples, Italy; National Institute for Nuclear Physics INFN, Division of Naples, Via Cinthia, 80126 Naples, Italy)
Nicola Casagli
(Department of Earth Sciences, University of Florence, Via Giorgio La Pira 4, 50121 Florence, Italy)
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