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arXiv:2512.11364 · Journal of Physics Communications

Verification and experimental validation of neutral atom beam source produced by L-PBF

Vineet Kumar, Niklas Vilhelm Lausti, Peter Kúš, Adam Jelínek, Ivan Hudák, David Motyčka, Petr Dohnal, R. Plašil, Jiří Hajnyš, Michal Hejduk

Published Mar 1, 2026• 0 citations
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Abstract

Abstract We report validation tests of a calcium atomic-beam source fabricated via Laser Powder Bed Fusion (L-PBF). The surface quality and elemental composition of the printed component were quantitatively assessed, allowing us to establish reference parameters for reliable operation in an ultra-high-vacuum environment. Safe operating conditions of the atomic oven were determined through a combination of simulations and experimental measurements. The ability of the device to deliver an atomic beam to the main experimental region—the electron/ion trap—was verified using atomic fluorescence imaging. Fluorescence spectroscopy was further employed to characterize the beam divergence, yielding an emission-cone half-angle of approximately 19° for atoms near the beam axis. A current of atoms on the order of 10 8 s −1 was estimated in the electron-trapping region, which is more than sufficient for anticipated electron-trapping and ion-trapping experiments.

DOI
10.1088/2399-6528/ae4f4e

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