Heidelberg 2015 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 29: Nuclear Astrophysics 2

HK 29.1: Gruppenbericht

Dienstag, 24. März 2015, 17:00–17:30, K/HS2

Underground nuclear astrophysics at the Dresden Felsenkeller — •Daniel Bemmerer¹, Thomas E. Cowan^1,2, Stefan Gohl^1,2, Marcel Grieger^1,2, Christoph Ilgner¹, Arnd R. Junghans¹, Stefan Müller¹, Tobias P. Reinhardt², Stefan Reinicke^1,2, Bernd Rimarzig¹, Marko Röder^1,2, Konrad Schmidt^1,2, Ronald Schwengner¹, Klaus Stöckel^1,2, Tamás Szücs¹, Marcell P. Takács^1,2, Andreas Wagner¹, Louis Wagner^1,2, and Kai Zuber² — ¹Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden — ²Technische Universität Dresden

Favored by the low background underground, accelerator-based experiments are an important tool to study nuclear astrophysics reactions involving stable charged particles. This technique has been used with great success at the 0.4 MV LUNA accelerator in the Gran Sasso laboratory in Italy. However, the nuclear reactions of helium and carbon burning and the neutron source reactions for the astrophysical s-process require higher beam energies, as well as the continuation of solar fusion studies. As a result, NuPECC strongly recommended the installation of one or more higher-energy underground accelerators. Such a project is underway in Dresden. A 5 MV Pelletron accelerator is currently being refurbished by installing an ion source on the high voltage terminal, enabling intensive helium beams. The preparation of the underground site is funded, and the civil engineering project is being updated. The science case, operational strategy and project status will be reported. – Supported by NAVI (HGF VH-VI-417) and by DFG (TU Dresden Institutional Strategy, "support the best").