2 documents found, page 1 of 1
Perfis de contaminação e inactivação microbiana em azulejos
Silva, T.; Cabo Verde, S.; Cardoso, G.; Fernandes, A. C.; Trindade, M. J.; Burbidge, C. I.; Dias, M. I.; Botelho, M. L.; Prudêncio, M. I.One of the major challenges in the conservation of cultural heritage is the prevention and control of contamination caused by microorganisms. The goals of the present study were the evaluation of methodologies for the characterization and quantification of the bioburden present in ancient ceramic tiles, and the estimation of the minimum dose of gamma radiation (Cobalt-60) necessary to inactivate the bioburden o...
Tomografia de neutrões aplicada a azulejos dos séculos XVI e XVII – visualizaçã...
Pereira, M. A. Stanojev; Prudêncio, M. I.; Marques, J. G.; Figueiredo, M. O.; Dias, M. I.; Silva, T. P.; Esteves, L.; Burbidge, C. I.; Trindade, M. J.Neutron tomography (NT) setup installed at the Portuguese Nuclear Research Reactor (Sacavém, Portugal) has been applied to visualize the inner structure of ancient Portuguese glazed tiles undergoing conservation treatments. Neutrons have the advantage of interacting strongly with hydrogen, so NT is able to map hydrogenous compounds with high sensitivity. NT showed that brushing technique appears to be more effi...