부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/j.crhy.2009.08.007 Byline: Ph. Hubert (a), F. Perrot (a), J. Gaye (b), B. Medina (b), M.S. Pravikoff (c) Keywords: Radioactivity; Gamma spectrometry;.sup.137Cs; Wine dating; Authentication of old wines Abstract: For many years the neutrino group in the CENBG has been involved in the development of low background [gamma]-ray spectrometers, based on the use of HPGe crystals. When applied to radioactivity measurements of wine in bottles, it has been shown that besides the well-known isotope.sup.40K, the wine contains also trace amounts of.sup.137Cs (less than 1 Bq/l) with an activity depending on the vintage. This technique has thus led to the possibility to date the wine bottles of vintages between 1952 and [approximately equal to]1980 and to verify the year written on the label or on the cork. Since the measurements do not require opening the bottle, the technique has also proved to be very useful for detecting counterfeit wines of the XIXth century and first half of the XXth century. To cite this article: Ph. Hubert et al., C. R. Physique 10 (2009). Author Affiliation: (a) Centre d'Etudes Nucleaires de Bordeaux-Gradignan (CENBG), BP120, 33175 Gradignan, France (b) Direction Generale de la Concurrence, de la Consommation et de la Repression des Fraudes (DGCCRF), 33608 Pessac, France (c) Chimie Nucleaire Analytique et Bio-environnementale (CNAB), BP120, 33175 Gradignan, France