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Gießen 2024 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 37: Nuclear Astrophysics III

HK 37.4: Talk

Wednesday, March 13, 2024, 16:45–17:00, HBR 14: HS 1

Jet thickness measurements at the Felsenkeller windowless gas target system — •Maxim Hilz1,2, Daniel Bemmerer1, Axel Boeltzig1, Sören Göhler1, Eliana Masha1, Konrad Schmidt1, Steffen Turkat2, Anup Yadav1,2, and Kai Zuber21Helmholtz-Zentrum Dresden-Rossendorf (HZDR) — 2TU Dresden

For low-energy nuclear astrophysics cross section measurements, in addition to low background and high ion beam intensity, stable and high-purity target assemblies are needed. A windowless gas target including a wall-like gas jet is currently undergoing ex situ commissioning for the Felsenkeller underground ion accelerator. The contribution will report on gas thickness measurements using the α energy loss technique for various gas nozzles and nozzle inlet pressures. De Laval type nozzles gave wall thicknesses of a few times 1017 cm−2. Tests using interferometric techniques will be reported on, as well.

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