Particle Physics Experiment Will Use Ancient Lead From a Roman Shipwreck

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By Smriti Rao
Apr 16, 2010 9:28 PMJul 13, 2023 3:16 PM

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The cargo from a Roman shipsunk off the coast of Sardinia more than 2,000 years ago will finally be put to use--it will become a shield for a neutrino detector. In Italy, 120 lead bricks recovered from the shipwreck will soon be melted to make a protective shield for Italy's new neutrino detector, CUORE (Cryogenic Underground Observatory for Rare Events). The ancient lead, which is useful because it has lost almost all traces of its natural radioactivity, has been transferred from a museum in Sardinia to the national particle physics laboratory at Gran Sasso. After spending two millennia on the seabed, the lead bricks will now be used in an experiment that will take place beneath 4,500 feet of rock. Nature News writes:

Once destined to become water pipes, coins or ammunition for Roman soldiers' slingshots, the metal will instead form part of a cutting-edge experiment to nail down the mass of neutrinos.

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