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HK: Fachverband Physik der Hadronen und Kerne

HK 6: Nuclear Astrophysics I

HK 6.2: Gruppenbericht

Montag, 18. März 2019, 14:30–15:00, HS 16

Status of the Felsenkeller underground accelerator for nuclear astrophysics — •Daniel Bemmerer¹, Thomas E. Cowan^1,2, Marcel Grieger^1,2, Sebastian Hammer^1,2, Thomas Hensel^1,2, Arnd R. Junghans¹, Felix Ludwig^1,2, Conrad Möckel^1,2, Bernd Rimarzig¹, Stefan Reinicke^1,2, Simon Rümmler^1,2, Franziska Schoger^1,2, Ronald Schwengner¹, Julia Steckling^1,2, Klaus Stöckel^1,2, Tamás Szücs¹, Steffen Turkat^2,1, Andreas Wagner¹, and Kai Zuber² — ¹Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden, Germany — ²TU Dresden, Germany

At the Felsenkeller underground site in Dresden, shielded from cosmic rays by 45 m rock overburden, a 5 MV Pelletron accelerator has been installed. This machine has an internal ion source providing intensive ¹H⁺ and ⁴He⁺ beams and an external sputter ion source for high-current ¹²C⁺ beams. Both ion sources have already been successfully tested underground, and the commissioning of the accelerator is underway. A survey of the muon, neutron, and γ-ray background of the new lab has recently been completed. The scientific program will start with studies of solar fusion and stellar helium burning. In addition to in-house research by HZDR and TU Dresden, the new accelerator will be open for outside users, both from Germany and worldwide.