3D-printed polylactic acid mass spectrometer deflection electrode via copper electrodeposition
(2026) Journal of Vacuum Science & Technology B — Vol. 44, n° 5, p. 1-9 (2026)
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- Authors
Fréreux, J 
- Abstract
- A 3D-printed polylactic acid (PLA) deflection electrode, featuring an aperture, was copper-coated via electrodeposition following the application of a conductive paint. The electrode was compared to the original stainless steel electrode in a mass spectrometric instrument (STARGATE) across two measurement campaigns separated by three years. Statistical analysis accounting for repeated measurements across ions showed no significant effect of electrode type, campaign year, or their interaction on measured ion intensity. In addition to the temporal stability of the electrode response, deflection of both small and large cluster ions was observed. Pumping curve analysis highlights a slower pumping speed for the copper-coated electrode but shows no significant differences in the final vacuum levels reached in the instrument (≈ 10−8 mbar). Furthermore, the aperture-based electrode enables simultaneous use of a Faraday cup and a microchannel plate (MCP) detector, thereby extending the dynamic range of the instrument.
- Affiliations
Citations
Tomasetti, B., Fréreux, J., Corbo, T., Urbain, X., Delcorte, A., & Lauzin, C. (2026). 3D-printed polylactic acid mass spectrometer deflection electrode via copper electrodeposition. Journal of Vacuum Science & Technology B, 44(5), 1-9. https://doi.org/10.1116/6.0005580 (Original work published 2026)