https://doi.org/10.1051/epjconf/202328504001
Actinide and lanthanide thin-layer developments using a drop-on-demand printing system
1 Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
2 Helmholtz-Institut Mainz, 55099 Mainz, Germany
3 GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
4 European Commission, Joint Research Centre, 2440 Geel, Belgium
5 University of Jyväskylä, 40014 Jyväskylä, Finland
* Corresponding author: renisch@uni-mainz.de
Published online: 22 June 2023
Actinide and lanthanide thin layers with specific requirements regarding thickness, homogeneity, chemical purity, mechanical stability, and backing properties are applied in a multitude of physics and chemistry experiments. A novel target preparation method, the so-called “Drop-on-Demand” (DoD) technique, based on a commercial nanoliter (nL) dispenser is applied since a few years in the Nuclear Chemistry unit at Johannes Gutenberg University Mainz. The wetting behaviour of the nL droplets on the substrate’s surface is a key parameter determining the spatial distribution of the deposited material after evaporation. By switching from aqueous to organic solvents as well as by substrate surface modifications, the wetting behaviour can be influenced. Recent investigations on this influence and applications of the DoD method are presented. The produced actinide deposits were characterized by optical and scanning electron microscopy, by α spectroscopy as well as by radiographic imaging.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
