A Neutron Source Based on Spherical Tokamak

Francesco P. Orsitto (), Nunzio Burgio, Marco Ciotti, Guglielmo Lomonaco (), Fabio Panza and Alfonso Santagata
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Francesco P. Orsitto: ENEA Nuclear Department, C.R. Frascati, via E Fermi 45, 00044 Frascati, Italy
Nunzio Burgio: ENEA Nuclear Department, C.R. Casaccia, via Anguillarese 301, S. Maria di Galeria, 00123 Roma, Italy
Marco Ciotti: ENEA Nuclear Department, C.R. Frascati, via E Fermi 45, 00044 Frascati, Italy
Guglielmo Lomonaco: GeNERG, Dipartimento di Ingegneria Meccanica, Energetica, Gestionale e dei Trasporti, Università di Genova, 16145 Genova, Italy
Fabio Panza: ENEA Nuclear Department, C.R. Frascati, via E Fermi 45, 00044 Frascati, Italy
Alfonso Santagata: ENEA Nuclear Department, C.R. Casaccia, via Anguillarese 301, S. Maria di Galeria, 00123 Roma, Italy

Energies, 2025, vol. 18, issue 8, 1-11

Abstract: The paper presents a conceptual study of a neutron source based on a spherical tokamak (ST). The plasma scenario chosen for the ST is non-thermal fusion (hot ion mode), which is extensively used on machines like JET and TFTR deuterium–tritium (DT) experiments, which seems suited for low fusion gain reactors. As demonstrated in experiments, this scenario is a robust tool for neutron production. Starting from a new scaling law of energy confinement tested, approximately, on ST40 spherical tokamak, the parameters of a 15 MW ST DT fusion reactor (ST180) are derived, and a preliminary radial build of the machine is established.

Keywords: fusion reactors; spherical tokamak; non-thermal plasmas; neutron production (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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