The new 6 MV-AMS-facility DREAMS at Dresden


The new 6 MV-AMS-facility DREAMS at Dresden

Akhmadaliev, S.; Heller, R.; Hanf, D.; Rugel, G.; Merchel, S.

A new 6 MV electrostatic tandem accelerator has been put into operation at Helmholtz-Zentrum Dresden-Rossendorf (HZDR). It will be used for ion beam analysis as well as for material modification via high-energy ion implantation. The system is also equipped for accelerator mass spectrometry and opens a new research field at HZDR and the Helmholtz Association. The research activity at the DREsden Accelerator Mass Spectrometry facility (DREAMS) based on a 6 MV Tandetron is primarily dedicated to the long-lived radioisotopes of 10Be, 26Al, 36Cl, 41Ca, and 129I.
DREAMS background levels have been found of 4.5·10-16 for 10Be/9Be, 8·10-16 for 26Al/27Al, 3·10-15 for 36Cl/35Cl and 8·10-15 for 41Ca/40Ca, respectively. The observed background of 2·10-13 for 129I/127I originates from intrinsic 129I from AgI produced from commercial KI (MERCK).
During first experiments at the accelerator an energy calibration of the machine has been carried out. For this purpose the 1H(15N,γ α)12C nuclear reaction has been used. The charge states of the 15N ion of 1+, 2+ and 3+ corresponding to different terminal voltages of the accelerator have been chosen to obtain an absolute energy calibration.

Keywords: Accelerator Mass Spectrometry; AMS; electrostatic accelerator

Related publications

  • Contribution to proceedings
    AMS-12, Twelfth International Conference on Accelerator Mass Spectrometry, 21.-25.03.2011, Wellington, New Zealand
    Accelerator Mass Spectrometry, Nucl. Instr. and Meth. B (2012), North-Holland: Elsevier

Permalink: https://www.hzdr.de/publications/Publ-15694
Publ.-Id: 15694