From the muography of underground structures in ancient Naples to Cumae: A pilot project Giulio Saracino Università di Napoli Federico II e Is@tuto Nazionale di Fisica Nucleare Summary o Principles of muon radiography o MURAVES: an applicaon to the Vesuvius study o Looking for hidden cavi<es in Mt Echia o Cumae as a pilot project: principles of X ray radiography X rays can cross the maer Greater is the density greater is the absorp<on A contras<ve image is formed X ray detector Object to inves<gate Source X RAYS luggage Image of the content Limits of X ray radiography X ray can cross up to few tens of cm of maer But much more penetrang par<cles exist in nature Muons (µ) Elementary par<cles with electric charge They exist in nature ( cosmic rays) They can cross hundreds meters of rock p A cosmic shower µ 200 muons/min Principles of muon radiography (muography) Source: cosmic muons Measurement instrument: muon detector what we can inves<gate: Volcanoes Hills and subsoil ( archaeology, geological survey ) Mines Buildings ( pyramids) Volcanoes: Close to the horizon muons Muons Detector (not in scale) MURAVES MUon RAdiography of VESUVIUS "premiale project" MIUR INGV-INFN Dedicated detector: low electric power consump<on, transportability Muons Cavity Detector Tes<ng the muon radiography METROPOLIS INTEGRATED AND SUSTAINABLE METHODS AND TECHNOLOGIES FOR RESILIENCE AND SAFETY IN URBAN SYSTEMS PON 03PE_00093_4 High Technological District devoted to the sustainable buildings Industrial partner The test laboratory : MONTE ECHIA Centro storico Piazza del Plebiscito Vomero Piazza del Plebliscito Pon<celli Monte Echia Bagnoli Posillipo Monte Echia Napoli Lungomare Monte Echia Castel dell’ Ovo T H E H O S T 12 m above sea level 35 m undeground Palazzo di Serra di Cassano ancient cistern To find a known empty chamber above the detector Chamber m a.s.l. 45 surface area 25 ceiling 20 floor 10 detector Detector Sea level 10 m 25 m of tuff crossed 15 m 18 m 7 m 25 m 4 m 10 m detector The R variable Number of muons measured divided the number of muons expected R ≅ 1 if no cavities are present R > 1 in presence of cavities Expected signal from simulaons: only the test chamber R Simulaon Real data compared to simulaon: only chamber RED LINE: SIMULATION Detector Other voids in the acceptance 126° aperture angle. 50 cm Detector Comparison with the other structures Two signals not corresponding to any known structure A second site of observaon S<ll measuring Mt Echia y x X = 436426.9967 Y = 4520607.6189 Z = 12.63 y x To know more OPEN ACCESS Cumae Archaeological site Cuma First Greek colony in Italy ( VIII century B.C). tuff hill of 80 m a.s.l. rich of cavi<es and tunnels, some of them not yet discovered military have used its strategic posi<on un<l II word war II W.W. bunkers Cripta Romana 37 B.C. Sibilla Tunnel pre-roman age. Cocceio Tunnel 37 B.C. Simulaons in the Cocceio tunnel We are looking for a second gallery used to support the construc<on of the main. CONCLUSIONS o Muon radiography is a new and promising methodology o Campania is rich of interes<ng sites o We have just started a project concerning CUMA • Università L. Vanvitelli ( Carlo Rescigno) • Università Federico II and INFN (F. Ambrosino, L. Cimmino, P. Noli, P. Strolin ) • Archaeological park of Campi Flegrei. • .... THE END .