https://doi.org/10.1051/epjconf/202328510001
Comparison of Bi2O3-targets produced by thermal evaporation and RF magnetron sputtering
GSI Helmholtzzentrum für Schwerionenforschung mbH, 64291 Darmstadt, Germany
* Corresponding author: b.kindler@gsi.de
Published online: 22 June 2023
For the nuclear chemistry and for the nuclear physics of the heavy elements, bismuth is one of the key target materials, as it is the heaviest stable element. As discussed earlier, compound targets were developed to withstand higher intensive heavy ion beams. In the past, Bi2O3 was evaporated from the tantalum crucible and deposited on carbon backings. As the melting temperature of Bi2O3 is high (817° C), the process is at the limit of the cooling features of the evaporation set-up. Therefore, we decided to test RF magnetron sputtering as an alternative production method. We will present results of the different behavior of the targets produced via alternative processes.
© 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.
