AUTHENTICITY CHECK OF A CERTIFICATE SIGNED BY MADAME CURIE

摘要

Some years ago, the German/Swiss Association for Radiation Protection purchased a certificate bearing the signature 'M. Curie'. In a time when counterfeiting is possible simply with a colour copy machine, the question arose: is the document genuine? Audioradiography and measurement of radium contamination suggest that it was, in fact, signed by Marie Curie.