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arXiv · 1609.05819

Progress of the Felsenkeller shallow-underground accelerator for nuclear astrophysics

D. Bemmerer·F. Cavanna·T. E. Cowan·M. Grieger·T. Hensel·A. R. Junghans·F. Ludwig·S. E. Müller·B. Rimarzig·S. Reinicke·S. Schulz·R. Schwengner·K. Stöckel·T. Szücs·M. P. Takács·A. Wagner·L. Wagner·K. Zuber
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Abstract

Low-background experiments with stable ion beams are an important tool for putting the model of stellar hydrogen, helium, and carbon burning on a solid experimental foundation. The pioneering work in this regard has been done by the LUNA collaboration at Gran Sasso, using a 0.4 MV accelerator. In the present contribution, the status of the project for a higher-energy underground accelerator is reviewed. Two tunnels of the Felsenkeller underground site in Dresden, Germany, are currently being refurbished for the installation of a 5 MV high-current Pelletron accelerator. Construction work is on schedule and expected to complete in August 2017. The accelerator will provide intense, 50 uA, beams of 1H+, 4He+, and 12C+ ions, enabling research on astrophysically relevant nuclear reactions with unprecedented sensitivity.

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D. Bemmerer, F. Cavanna, T. E. Cowan, M. Grieger, T. Hensel, A. R. Junghans, F. Ludwig, S. E. Müller, B. Rimarzig, S. Reinicke, S. Schulz, R. Schwengner, K. Stöckel, T. Szücs, M. P. Takács, A. Wagner, L. Wagner, K. Zuber. 2016-09-16. Progress of the Felsenkeller shallow-underground accelerator for nuclear astrophysics. https://doi.org/10.7566/jpscp.14.021106

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