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6.0. FORSCHUNGSSTELLE “RADIOMETRIE” 157<br />
6.1 Forschungsstelle ”Radiometrie” of the Heidelberger Akademie<br />
der Wissenschaften<br />
Augusto Mangini<br />
The Forschungsstelle is an independent research unit funded by the Heidelberger Akademie der Wissenschaften.<br />
Founding began in the year 1958 will run through the end of 2010.<br />
Group members<br />
Prof. Dr. Augusto Mangini<br />
Dr. Bernd Kromer<br />
R. Eichstätter, technician<br />
M. Gillmann, technician<br />
K. Thomas, Secretary<br />
Additional funding from the DFG, BMBF and EU:<br />
Dr. H. Braun, Post Doc<br />
Dr. M. Friedrich, Post Doc<br />
Dr. D. Scholz, Post Doc<br />
Dr. A. Schröder-Ritzrau, Post Doc<br />
Dr. I. Unkel, Post Doc<br />
Dr. P. Verdes, Post Doc<br />
S. Talamo, Scientific staff<br />
F. Bernsdorff, PhD-student<br />
J. Fohlmeister, PhD-student<br />
C. Mühlinghaus, PhD-student<br />
N. Latuske, PhD-student<br />
J. Lippold, PhD-student<br />
D. Schimpf, PhD-student<br />
N. Vollweiler, PhD-student<br />
H. Baus, technician<br />
E. Gier, technician<br />
S. Kühr, technician<br />
S. Lindauer, technician<br />
4 student assistants<br />
The task of the Forschungsstelle ”Radiometrie” of the Heidelberger Akademie der Wissenschaften is<br />
dating and interpretation of climate archives. The research unit presently consists of two groups, the<br />
Radiocarbon Lab (Bernd Kromer) and the Th/U-Lab (Augusto Mangini).<br />
14 C Lab The focus of the 14 C Lab are highly precise 14 C-dating and the construction of a calibration<br />
curve for radiocarbon that reaches far back into the last Glacial. Furthermore this Lab delivers 14 Cdatings<br />
for several archeological groups.<br />
Methods We use both the conventional gas-counting technique and AMS. The gas counters were<br />
developed to highest precision (better than 2 permille). For AMS we prepare graphite targets, to be<br />
measured at one of the European AMS facilities.<br />
Extension of tree-ring based 14 C calibration into the Late Glacial In collaboration with<br />
the tree-ring laboratories of the University Stuttgart-Hohenheim and the University of Zürich/WSL<br />
Birmensdorf we extend the tree-ring based 14 C calibration into the past. Presently the absolutely<br />
(annually) dated oak and pine chronology starts at 12.400 years BP (before AD 1950) [Friedrich et al.<br />
, 2004; Reimer et al. , 2004]. In the Late Glacial two independent chronologies were built in the two<br />
tree-ring labs, assisted be numerous 14 C predating in our laboratory [Kromer et al. , 2004; Schaub<br />
et al. , 2005]. Based on a comparison to the marine 14 C of Hughen et al. [2004] the chronologies<br />
cover the mid-Bølling, all of Allerød and the initial 150 years of Younger Dryas (ca. 14.100 to 12.800
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