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Radiation background due to radioactivity in palaces and museums: influence on TL/OSL dating |
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| Authors: | Jacques Castaing Michel Girod Antoine Zink |
| Institution: | aCentre de recherche et de restauration des musées de France, CNRS UMR 171 & GDR 2114, Palais du Louvre, 14 quai François Mitterrand, 75001 Paris, France;bService de Protection contre les rayonnements, DEN/DSP/SPR, CEA-Saclay, 91191 Gif-sur-Yvette cedex, France;cInstituto Tecnologico Nuclear, 2686-953 Sacavem, Portugal |
| Abstract: | The environmental radiation level is unknown for objects that have been in collections for decades or centuries. We have performed dose rate measurements in museums representative of ancient castles and palaces. Annual dose rates between 0.3 and 1.3 mGy/year have been measured. There is a correlation between annual rates and the materials close to the dosimeters. The dating of objects by luminescence (TL and OSL) requires accurate knowledge of the dose rate in the minerals under investigation. An estimation of the errors on ages can be deduced from our measurements for typical situations of works of art and museum objects. |
| Keywords: | Luminescence dating External dose rate Environmental radiation Museum |
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