Darmstadt 2016 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 57: Nuclear Astrophysics V

HK 57.1: Gruppenbericht

Donnerstag, 17. März 2016, 16:30–17:00, S1/01 A04

A 5 MV Pelletron accelerator providing ¹H⁺, ⁴He⁺, and ¹²C⁺ beams for underground nuclear astrophysics — •Stefan Reinicke^1,2, Daniel Bemmerer¹, Thomas E. Cowan^1,2, Marcel Grieger^1,2, Arnd R. Junghans¹, Felix Ludwig^1,2, Stefan E. Müller¹, Ferdinand Rath^1,2, Tobias P. Reinhardt², Bernd Rimarzig¹, Marko Röder^1,2, Ronald Schwengner¹, 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

Accelerator-based experiments at the 0.4 MV LUNA underground accelerator at Gran Sasso have enabled great progress for studies of Big Bang and solar fusion reactions. However, to complete the picture of solar fusion reactions and open up helium and carbon burning reactions to study, higher beam energies are required. A 5 MV Pelletron accelerator will be installed in the Felsenkeller underground laboratory in Dresden. It will allow both, tandem mode operations for ¹²C⁺ beams and the use of a radio frequency ion source on the high voltage terminal for ¹H⁺ and ⁴He⁺ beams. The beam from the RF ion source is fed in with a remotely controlled electrostatic deflector. In addition, a large, ultra-sensitive high-purity germanium detector for offline measurements will be installed at Felsenkeller. The final timeline of the project will be shown, as well as the science case for in-house research and the capabilities available to external scientific users. – Supported by NAVI (HGF VH-VI-417) and by DFG (TU Dresden Institutional Strategy, "support the best").