• Sources of Random Error in the Debrecen Radiocarbon Laboratory

      Hertelendi, Ede (Department of Geosciences, The University of Arizona, 1990-01-01)
      A new high-pressure methane-filled counter system for 14C dating was installed in 1986 when the first stage of the International Collaborative Study (ICS) started. Random errors in the new measuring system and in the process of chemical pretreatment and preparation were checked during the three years of intercomparison. Results show that the most important source of error in our laboratory is gas contamination. This causes variation of the count rate to exceed the statistically expected variability. Other sources of error are also discussed and limits of their contributions are given.
    • Intercalibration of Environmental Isotope Measurements: The Program of the International Atomic Energy Agency

      Gonfiantini, Roberto; Rozanski, Kazimierz; Stichler, Willibald (Department of Geosciences, The University of Arizona, 1990-01-01)
      We briefly present here the environmental isotope intercalibration programs of the International Atomic Energy Agency (IAEA). In fact, the IAEA has implemented two parallel programs during the last 20 years: for stable isotopes of light elements and for a radioactive isotope of hydrogen, tritium. This IAEA activity resulted in the preparation of a number of reference and intercomparison materials of various types, now stored in the Agency and available upon request.
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      Department of Geosciences, The University of Arizona, 1990-01-01
    • Professor of Geosciences Purdue University

      Department of Geosciences, The University of Arizona, 1990-01-01
    • Radiocarbon Announces the Forthcoming Publication of the Following Special Issues:

      Department of Geosciences, The University of Arizona, 1990-01-01
    • Second Announcement

      Department of Geosciences, The University of Arizona, 1990-01-01
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      Department of Geosciences, The University of Arizona, 1990-01-01
    • Tentative Conference Sessions

      Department of Geosciences, The University of Arizona, 1990-01-01