Speaker
Dr
Daniel Bemmerer
(Helmholtz-Zentrum Dresden-Rossendorf)
Description
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{\small \it Nuclear Physics in Astrophysics 8, NPA8: 18-23 June 2017, Catania, Italy}
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\TITLE{Felsenkeller 5\,MV underground accelerator}\\[3mm]
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\AUTHORS{
\underline{D. Bemmerer}$^1$,
F. Cavanna$^1$, T.E. Cowan$^{1,2}$,
M. Grieger $^{1,2}$, T. Hensel $^{1,2}$, A.R. Junghans$^1$, F. Ludwig $^{1,2}$, S. E. M\"uller$^1$, B. Rimarzig$^1$, S. Reinicke$^{1,2}$, S. Schulz$^{1,2}$, R. Schwengner$^1$, K. St\"ockel$^2$, T. Sz\"ucs$^{1,3}$, M.P. Tak\'acs$^{1,2}$, A. Wagner$^1$, L. Wagner$^{1,2}$, and K. Zuber$^2$
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\AFFILIATION{1}{Helmholtz-Zentrum Dresden-Rossendorf (HZDR), 01328 Dresden, Germany}
\AFFILIATION{2}{Technische Universit\"at Dresden (TU Dresden), 01062 Dresden, Germany}
\AFFILIATION{3}{MTA ATOMKI, 4026 Debrecen, Hungary}
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\centerline{Contact email: {\it d.bemmerer@hzdr.de}}
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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. Results from $\gamma$-ray [1], neutron, and muon background measurements in the Felsenkeller underground site in Dresden, Germany, will be shown.
Two tunnels of the Felsenkeller site are currently being refurbished for the installation of a 5\,MV high-current Pelletron accelerator. Construction work is progressing on schedule and expected to complete in August 2017. The accelerator will provide intense, 50\,$\mu$A, beams of $^1$H$^+$, $^4$He$^+$, and $^{12}$C$^+$ ions, enabling research on astrophysically relevant nuclear reactions with unprecedented sensitivity.
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\noindent [1] T. Sz\"ucs et al., Eur. Phys. J. A 51, 33 (2015).
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[2] http://www.hzdr.de/felsenkeller }
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Primary author
Dr
Daniel Bemmerer
(Helmholtz-Zentrum Dresden-Rossendorf)
