The lifetime of components in a fusion reactor
Open accessAbstract
Nuclear fusion is one of the most promising energy sources to satisfy our future needs. However, several open challenges are yet to be solved for the realisation of fusion electricity. Among the crucial issues, it is key to develop innovative solutions to increase the lifetime of the components inside a fusion reactor.
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Over time, neutron bombardment degrades fusion magnets' ability to generate the confinement field efficiently, setting the operational lifetime of the FPP and its return on investment.
“Over time, neutron bombardment degrades these magnets' ability to generate the confinement field efficiently, setting the operational lifetime of the FPP itself and its ultimate return on investment [1, 2].”
From A facility for thermo-mechanical characterization of fusion magnet materials during cryogenic ion irradiation (2025) · cites this paper as [2]
The walls of a fusion reactor (page unavailable) says neutron-induced damage can limit the lifetime of the whole plant, particularly when it affects parts that cannot be replaced, such as the vacuum vessel. The DEMO fusion plant section links longer component lifetimes to lower costs. Neither passage says neutron bombardment degrades the magnets’ ability to generate the confinement field, or that magnet degradation sets the plant’s lifetime and return on investment. (LLM, conf=0.89)
Experimental — accuracy not yet measuredFusion magnets are typically considered lifetime components due to their prohibitive cost.
“Due to their prohibitive cost, fusion magnets are typically considered lifetime components, i.e., intended to be non-replaceable.”
From A facility for thermo-mechanical characterization of fusion magnet materials during cryogenic ion irradiation (2025) · cites this paper as [2]
The walls of a fusion reactor discusses non-substitutable parts such as the vacuum vessel, and The DEMO fusion plant describes replacing plasma-facing components. Searches for magnets, coils, replacement and cost found no passage saying that magnets are intended to last the plant's lifetime or that their cost makes them non-replaceable. Page numbers were not provided in our copy. (LLM, conf=0.76)
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References 7 · Cited by 3
Research works printed but not linked: 8
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- M. Gago et al., Physica Scripta T171, 014007 (2020), https://doi. org/10.1088/1402-4896/ab3bd9 · DOI
- M. Li et al., Journal of Nuclear Materials 393, 36 (2009), https://doi.org/10.1016/j.jnucmat.2009.05.003 · DOI
- F. Cismondi et al., Fusion Engineering and Design 124, 562 (2017), https://doi.org/10.1016/j.fusengdes.2017.03.147 · DOI
- S. Noce et al., Fusion Engineering and Design 155, 111730 (2020), https://doi.org/10.1016/j.fusengdes.2020.111730 · DOI
- U. Fischer et al., "Required, achievable and target TBR for the European DEMO", Fusion Engineering and Design 155 (2020) 111553, https://doi.org/10.1016/j.fusengdes.2020.111553 · DOI
- B. van der Schaaf et al., Journal of Nuclear Materials 386-388, 236 (2009), https://doi.org/10.1016/j.jnucmat.2008.12.329 · DOI
- G. Pintsuk et al., Fusion Engineering and Design 146, 1300 (2019), https://doi.org/10.1016/j.fusengdes.2019.02.063 · DOI
- Authors
- Dose, G.
- Affiliations
- University of Rome Tor Vergata (IT)
- Corresponding author
- Dose, G.
- ORCID
- Dose, G.
- Venue
- Europhysics News
- Publisher
- EDP Sciences
- Published
- 2021
- Volume
- 52
- Issue
- 5
- Pages
- 24-27
- ISSN
- 0531-7479 (ISSN-L)
- 1432-1092
- OpenAlex
- W3215664802
- Cited by
- 3
- References
- 7
- Citations by year
- 2026: 1 · 2025: 2
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Europhysics news (publishedVersion)
- Springer Link (Chiba Institute of Technology) (submittedVersion)
- Topics
- Physical Sciences › Materials Science › Materials Chemistry › Fusion materials and technologies
- Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Magnetic confinement fusion research
- Physical Sciences › Engineering › Biomedical Engineering › Superconducting Materials and Applications
- Keywords
- fusion reactor components, component lifetime, nuclear fusion, fusion energy, material degradation
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