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. 2021 Oct 12;8:712374. doi: 10.3389/fmed.2021.712374

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Copyright © 2021 Heinke, Chevallay, Chrysalidis, Cocolios, Duchemin, Fedosseev, Hurier, Lambert, Leenders, Marsh, van der Meulen, Sprung, Stora, Tosato, Wilkins, Zhang and Talip.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Breakdown of mechanisms involved in the extracted ion beam composition for thulium and erbium. The respective measured elemental enrichment factors (left-hand columns) as extracted from Figure 4 are compared with theoretically expected ones (dashed lines) calculated from vapor pressure, laser enhancement (both favoring thulium) and surface ionization efficiency (favoring erbium). The overall trend is reproduced. The top panel depicts the corresponding collection rate at the points of measurement.