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HK: Fachverband Physik der Hadronen und Kerne
HK 6: Nuclear Astrophysics I
HK 6.2: Group Report
Monday, March 18, 2019, 14:30–15:00, HS 16
Status of the Felsenkeller underground accelerator for nuclear astrophysics — •Daniel Bemmerer1, Thomas E. Cowan1,2, Marcel Grieger1,2, Sebastian Hammer1,2, Thomas Hensel1,2, Arnd R. Junghans1, Felix Ludwig1,2, Conrad Möckel1,2, Bernd Rimarzig1, Stefan Reinicke1,2, Simon Rümmler1,2, Franziska Schoger1,2, Ronald Schwengner1, Julia Steckling1,2, Klaus Stöckel1,2, Tamás Szücs1, Steffen Turkat2,1, 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.