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HK: Fachverband Physik der Hadronen und Kerne

HK 59: Instrumentation XIV

HK 59.1: Vortrag

Donnerstag, 13. März 2025, 17:30–17:45, SR Exp1B Chemie

The New Jet and Static Gas Target System at the Felsenkeller Underground Laboratory — •Anup Yadav^1,2, Konrad Schmidt¹, and Daniel Bemmerer¹ — ¹Helmholtz-Zentrum Dresden-Rossendorf — ²Technische Universität Dresden

A newly developed windowless gas-target system, tailored to meet the precision measurement demands of modern nuclear astrophysics, has recently been installed at the Felsenkeller underground ion accelerator laboratory. The system can be operated either in jet or static modes. Real-time monitoring of the jet is facilitated by laser interferometry validated by alpha-energy-loss measurements. Areal jet densities of up to 3×10¹⁸ atoms/cm² have been determined. Continuing optimization of the jet-nozzle geometry involves comprehensive computational fluid dynamics simulations. For the extended static gas target setup, pressure and temperature profiles have been measured to construct the density profile. A beam calorimeter is used to measure the beam intensity. The setup has undergone development and testing at the HZDR Rossendorf campus and now is in the commissioning phase at the Felsenkeller underground ion accelerator laboratory.

Keywords: Felsenkeller underground laboratory; jet and static gas target; target thickness determination; alpha energy loss; laser interferometry