https://doi.org/10.1140/epjp/s13360-023-04468-2
Regular Article
Analytical study of low energy proton interactions in the SORGENTINA’s fusion ion source-Part II: beam-gas
SORGENTINA ion beam interactions
1
Department of Fusion and Technologies for Nuclear Safety and Security, ENEA, Rome, Italy
2
Istituto Nazionale di Fisica Nucleare (INFN), Frascati National Laboratories, Frascati, Italy
3
Italian National Institute of Health (ISS), Rome, Italy
4
Italian Institute of Nuclear Physics, Milan, Italy
5
Politecnico di Torino, Turin, Italy
6
Italian National Institute of Ionizing Radiation Metrology, ENEA, Rome
, Italy
7
ASL Roma 6, Albano Laziale, Italy
8
Radiation Protection Institute, ENEA, Bologna, Italy
9
Management of Infrastructures and Services, ENEA, Rome, Italy
10
Department of Energy, Technology and Renewable Sources, ENEA, Rome, Italy
11
Department for Sustainability, ENEA, Rome, Italy
Received:
2
May
2023
Accepted:
8
September
2023
Published online:
9
October
2023
The SORGENTINA-RF fusion source will rely on a metallic, water cooled rotating target and an ion source that will deliver a mixed deuteron-tritium (50-50) beam featuring 300 keV energy and about 830 mA current. The ion source will be firstly tested in hydrogen, thus delivering a 300-keV/830-mA proton beam onto a beam dump, to assess the beam performance. This paper describes the interaction of the proton beam with the residual gas that will be in the drift tube of the accelerator. The study relies on analytical calculations, which describe the different processes in details, and Monte Carlo simulations performed using GEANT4. The physical processes involved are described in detail. Moreover, the analytical and numerical calculations provide some figures on the bremsstrahlung radiation field produced by the secondary electrons generated by means of the proton-gas interactions and accelerated by the extraction grids of the ion source.
Members of the SRF Collaboration and the affiliations are listed in the end of the article.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
