Isotope Production in Muon-Catalyzed-Fusion Systems
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866918263718412288 |
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| author | Parisi, J. F. Rutkowski, A. |
| author_facet | Parisi, J. F. Rutkowski, A. |
| contents | Producing valuable isotopes with high-flux high-energy neutrons generated by muon-catalyzed fusion ($μ$CF) reactions could substantially improve the economic prospects for muon-catalyzed fusion. Because no external heating is required for $μ$CF, heat flux constraints are significantly relaxed compared with fusion systems requiring external heating. This could allow $μ$CF to attain much higher neutron flux without breaching material heat flux limits. If muon production rates can be increased, $μ$CF systems employing transmutation could be viable well before energy breakeven is possible. For $μ$CF systems transmuting valuable isotopes, the required number of catalyzed fusion events per muon and muon energy generation cost can be relaxed by several orders of magnitude relative to electricity-generating systems, making $μ$CF an attractive high-flux neutron source. We show an example $μ$CF system with a 10 gram ${}^{226}\mathrm{Ra}$ feedstock and a steady-state muon rate of $10^{12}$ muons / second - roughly half a kilowatt of fusion power - could produce 20 mg of ${}^{225}\mathrm{Ac}$ per year - comparable to 400 times global supply in 2024. As higher muon rate sources become available, many other radioisotope transmutation pathways become viable. These findings motivate the accelerated development of $μ$CF systems for neutron-driven isotope production far before net energy generation is possible. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_20951 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Isotope Production in Muon-Catalyzed-Fusion Systems Parisi, J. F. Rutkowski, A. Plasma Physics Nuclear Experiment Accelerator Physics Producing valuable isotopes with high-flux high-energy neutrons generated by muon-catalyzed fusion ($μ$CF) reactions could substantially improve the economic prospects for muon-catalyzed fusion. Because no external heating is required for $μ$CF, heat flux constraints are significantly relaxed compared with fusion systems requiring external heating. This could allow $μ$CF to attain much higher neutron flux without breaching material heat flux limits. If muon production rates can be increased, $μ$CF systems employing transmutation could be viable well before energy breakeven is possible. For $μ$CF systems transmuting valuable isotopes, the required number of catalyzed fusion events per muon and muon energy generation cost can be relaxed by several orders of magnitude relative to electricity-generating systems, making $μ$CF an attractive high-flux neutron source. We show an example $μ$CF system with a 10 gram ${}^{226}\mathrm{Ra}$ feedstock and a steady-state muon rate of $10^{12}$ muons / second - roughly half a kilowatt of fusion power - could produce 20 mg of ${}^{225}\mathrm{Ac}$ per year - comparable to 400 times global supply in 2024. As higher muon rate sources become available, many other radioisotope transmutation pathways become viable. These findings motivate the accelerated development of $μ$CF systems for neutron-driven isotope production far before net energy generation is possible. |
| title | Isotope Production in Muon-Catalyzed-Fusion Systems |
| topic | Plasma Physics Nuclear Experiment Accelerator Physics |
| url | https://arxiv.org/abs/2511.20951 |