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Saclay Natural Radiocarbon Measurements I

Published online by Cambridge University Press:  18 July 2016

G. Delibrias ,
M. T. Guillier  and
J. Labeyrie
G. Delibrias
Affiliation:
Service d'Electronique Physique, Centre d'Etudes Nucléaires de Saclay B. P. no. 2, Gif-sur-Yvette (S. et O.), France
M. T. Guillier
Affiliation:
Service d'Electronique Physique, Centre d'Etudes Nucléaires de Saclay B. P. no. 2, Gif-sur-Yvette (S. et O.), France
J. Labeyrie
Affiliation:
Service d'Electronique Physique, Centre d'Etudes Nucléaires de Saclay B. P. no. 2, Gif-sur-Yvette (S. et O.), France
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The following list shows the age measurements carried out at Saclay by the Service d'Electronique Physique, using the C14 method.

The apparatus employed was completed and calibrated in 1956 and the first tests were performed during the same year. The counting unit is a 1.2 L stainless steel proportional counter and the filling gas is pure CO2 at 74 cm Hg pressure. The shield consists of 20 cm of lead, 10 cm of iron, a coincidence ring and 2 cm of bismuth. The background is 4.86 ± 0.05 counts/min. (Error is ± σ, the duration of each counting being 24 hours.) Final purification is performed by adsorption of CO2 on alumina at low temperature, followed by desorption at room temperature; this has proved particularly effective and gives a very good filling gas. Technique was described in detail previously by the authors (Perquis, Delibrias, and David, 1956; Delibrias and Perquis, 1958).

As a modern carbon standard we first used wood taken from the 1930 to 1945 rings of a large Douglas fir; this standard gave a net count of 6.02 counts/min. This activity, taking into account a 2% Suess-effect for this wood, was found to be 95% of the activity of the NBS oxalic-acid standard, measured in the same counter.

The NBS standard has been adopted by this laboratory since January 1961, and values given here are calculated from this new standard.

Measurements listed are dates obtained from 1956 through 1962. No reports are given here from other types of measurements carried out at Saclay, such as: (1) C14 content of wild plants growing in the vicinity of nuclear reactors; (2) measurement of C14 in blood proteins of workers of the radioactive-tracers industry; (3) Spallation cross-sections for C14 production in oxygen and iron by high energy protons; (4) C14 content of meteorites.

Type
Research Article
Information
Radiocarbon , Volume 6 , 1964 , pp. 233 - 250
Copyright
Copyright © The American Journal of Science 

References

Date lists: Google Scholar
Cambridge III Godwin, and Willis, , 1961.Google Scholar
Groningen IV Vogel, and Waterbolk, , 1963.Google Scholar
Lamont II Kulp, and Others, , 1952.Google Scholar
Lamont V Olson, and Broecker, , 1959.Google Scholar
Lamont VI Broecker, and Olson, , 1959.Google Scholar
Lamont VIII Broecker, and Olson, , 1961.Google Scholar
Stockholm V Ostlund, and Engstrand, , 1963.Google Scholar
Arkell, A. J., 1953, Shaheinab: London, Oxford Univ. Press.Google Scholar
Bourguet, P. du, 1957, Tissus coptes et carbone 14: Bull. du lab. du Musée du Louvre, no. 2, p. 57–59.Google Scholar
Bourguet, P. du 1958, Datation des tisus coptes et carbone 14: Bull. du lab. Musée du Louvre, no. 3, p. 52–63.Google Scholar
Coursaget, J., Giot, P. R., Le Run, J., 1960, Neolithic dates from France: Antiquity XXXIV, v. 134, p. 147–148.Google Scholar
Delibrias, G., Hugot, H., Quézel, P., 1957, Trois datations de sédiments récents par le radiocarbone: Libyca, v. 5, p. 267–270.Google Scholar
Delibrias, G., Perquis, M. T., 1958, Datages par la méthode du carbone 14: Bull. d'Information Sci. et Tech. du Commissariat à l'Energie Atomique, no. 21, p. 1–3.Google Scholar
Delibrias, G., Perquis, M. T., Ros, J., 1961, Vitesse de dépôt des vases marines dans la baie de Villefranche-sur-Mer par la méthode du carbone 14: Colloque du C.N.R.S. sur l'Océanographie Géol. et Géog., Villefranche-sur-Mer, p. 29–33.Google Scholar
Delibrias, G., Hugot, H. J., 1962, Datation par la méthode dite “du C-14” du néolithique de l'Adrar Bous (Ténéréen): Missions Berliet Ténéré-Tchad, Arts et Métiers graphiques ed., Paris, p. 71–72.Google Scholar
Delibrias, G., Labeyrie, J., 1963, Le datage des mortiers par la méthode du carbone 14: Revue d'Archéologie, in press.Google Scholar
Emperaire, J., Laming, A., 1954, La grotte du Mylodon: Jour. de la Soc. des Americanistes, v. 43, p. 173–206.Google Scholar
Emperaire, J., Laming, A. 1956, Les Sambaquis de la Côte méridionale du Brésil: Jour. de la Soc. des Americanistes, v. 45, p. 5–163.Google Scholar
Emperaire, J. and Emperaire, A., 1959, Mission Archeologique 1955-1959: Rapport interne du C.N.R.S. Google Scholar
Grunewald, J., 1961, Carte géologique du Dipart. de la Martinique: Service géologique de France, Paris, Feuille N. Google Scholar
Jouis, E., 1961, Les alluvions de remblayages post-wurniennesen Vallée de Basse-Seine: Rev. des Soc. Savantes de Haute-Normandie, no. 21, p. 91–104.Google Scholar
Lacroix, B., 1960, Les Fontaines-Salées: Pub. de la Soc. des Fouilles Archéol. de l'Yonne.Google Scholar
Lhote, H., 1958, La Découverte des Fresques du Tassili: Arthaud ed., Paris.Google Scholar
Libby, W. F., 1952, Radiocarbon Dating: University of Chicago Press, p. 94.Google Scholar
Mauny, R., 1961, L'Ouest africain au Moyen Age: Mem. de l'Inst. Français d'Afrique Noire, I.F.A.N., Dakar, no. 61.Google Scholar
Pelletier, H., Delibrias, G., Labeyrie, J., Perquis, M. T., Rudel, A., 1959, Mesure de l'âge de l'une des coulées volcaniques issues du Puy-de-la-Vache (Puy-de-Dôme) par le carbone 14: Comptes Rendus de l'Acad. des Sci., v. 249, p. 2221–2222.Google Scholar
Perquis, M. T., Delibrias, G., David, B., 1956, Mesure en phase gazeuse de substances à très faible activité spécifique due au carbone 14: Bull. d'Inf. Sci. et Tech. du Commissariat à l'Energie Atomique, no. 11, p. 1–7.Google Scholar
Pons, A., Quézel, P., 1957, Première étude palynologique de quelques paléosols sahariens: Travaux de l'Inst. de Recherches Sahariennes, Alger, v. 16.Google Scholar
Quézel, P., Martinez, Cl., 1962, Premiers résultats de l'analyse palynologique de sédiments recueillis au Sahara méridional à l'occasion de la Mission Berliet-Tchad: Missions Berliet Ténéré-Tchad, Arts et Métiers graphiques ed., Paris, p. 313–332.Google Scholar
Roche, J., 1960, Le gisement mésolithique de Moita do Sebastiao: Inst. de Alta Cultura, Tipografia Portuguesa, Lisbon.Google Scholar
Tixier, J., 1962, Le “Ténéréen” de l'Adrar Bous III: Missions Berliet Ténéré-Tchad, Arts et Métiers graphiques ed., Paris, p. 333–348.Google Scholar
Vince, A., 1958, Notre Brière: Nantes, Imprimerie du Commerce.Google Scholar