Neutronics analysis of spin-polarized fuel in spherical tokamaks
The effect of spin-polarized deuterium–tritium fuel on the blanket, magnets, and surrounding structures is analyzed for a spherical tokamak fusion power plant. The focus of this paper is the neutron flux distribution in the fusion device and the corresponding engineering considerations, such as trit...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Nuclear Fusion |
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| Online Access: | https://doi.org/10.1088/1741-4326/adf3c6 |
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| author | Jin Whan Bae Katarzyna Borowiec Vittorio Badalassi Jason Parisi Ahmed Diallo Jon Menard Andrei Khodak Thomas Brown |
| author_facet | Jin Whan Bae Katarzyna Borowiec Vittorio Badalassi Jason Parisi Ahmed Diallo Jon Menard Andrei Khodak Thomas Brown |
| author_sort | Jin Whan Bae |
| collection | DOAJ |
| description | The effect of spin-polarized deuterium–tritium fuel on the blanket, magnets, and surrounding structures is analyzed for a spherical tokamak fusion power plant. The focus of this paper is the neutron flux distribution in the fusion device and the corresponding engineering considerations, such as tritium breeding ratio (TBR) and magnet fluence. Significant benefits were found for anti-aligned polarization: a 2.7% increase in the total TBR (which could increase significantly with further optimization) and an approximately 68% increase in the magnet lifetime. If the inboard breeding blanket can be replaced with extra shielding and magnets, then it could significantly increase fusion power with no loss of magnet lifetime. This would be accomplished by increasing the toroidal field strength. |
| format | Article |
| id | doaj-art-d1f43e1dd98a4345a35fb8efda512bda |
| institution | DOAJ |
| issn | 0029-5515 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Nuclear Fusion |
| spelling | doaj-art-d1f43e1dd98a4345a35fb8efda512bda2025-08-20T03:16:18ZengIOP PublishingNuclear Fusion0029-55152025-01-0165808605110.1088/1741-4326/adf3c6Neutronics analysis of spin-polarized fuel in spherical tokamaksJin Whan Bae0https://orcid.org/0000-0003-2654-8907Katarzyna Borowiec1https://orcid.org/0000-0003-3591-1739Vittorio Badalassi2Jason Parisi3https://orcid.org/0000-0003-1328-7154Ahmed Diallo4https://orcid.org/0000-0002-0706-060XJon Menard5https://orcid.org/0000-0003-1292-3286Andrei Khodak6https://orcid.org/0000-0002-8273-6614Thomas Brown7Oak Ridge National Laboratory , 1 Bethel Valley Rd., Oak Ridge 37830, TN, United States of AmericaOak Ridge National Laboratory , 1 Bethel Valley Rd., Oak Ridge 37830, TN, United States of AmericaOak Ridge National Laboratory , 1 Bethel Valley Rd., Oak Ridge 37830, TN, United States of AmericaPrinceton Plasma Physics Laboratory , 100 Stellarator Rd., Princeton 08543, NJ, United States of AmericaPrinceton Plasma Physics Laboratory , 100 Stellarator Rd., Princeton 08543, NJ, United States of AmericaPrinceton Plasma Physics Laboratory , 100 Stellarator Rd., Princeton 08543, NJ, United States of AmericaPrinceton Plasma Physics Laboratory , 100 Stellarator Rd., Princeton 08543, NJ, United States of AmericaPrinceton Plasma Physics Laboratory , 100 Stellarator Rd., Princeton 08543, NJ, United States of AmericaThe effect of spin-polarized deuterium–tritium fuel on the blanket, magnets, and surrounding structures is analyzed for a spherical tokamak fusion power plant. The focus of this paper is the neutron flux distribution in the fusion device and the corresponding engineering considerations, such as tritium breeding ratio (TBR) and magnet fluence. Significant benefits were found for anti-aligned polarization: a 2.7% increase in the total TBR (which could increase significantly with further optimization) and an approximately 68% increase in the magnet lifetime. If the inboard breeding blanket can be replaced with extra shielding and magnets, then it could significantly increase fusion power with no loss of magnet lifetime. This would be accomplished by increasing the toroidal field strength.https://doi.org/10.1088/1741-4326/adf3c6spin-polarizationtritiumfusionspherical tokamakneutronics |
| spellingShingle | Jin Whan Bae Katarzyna Borowiec Vittorio Badalassi Jason Parisi Ahmed Diallo Jon Menard Andrei Khodak Thomas Brown Neutronics analysis of spin-polarized fuel in spherical tokamaks Nuclear Fusion spin-polarization tritium fusion spherical tokamak neutronics |
| title | Neutronics analysis of spin-polarized fuel in spherical tokamaks |
| title_full | Neutronics analysis of spin-polarized fuel in spherical tokamaks |
| title_fullStr | Neutronics analysis of spin-polarized fuel in spherical tokamaks |
| title_full_unstemmed | Neutronics analysis of spin-polarized fuel in spherical tokamaks |
| title_short | Neutronics analysis of spin-polarized fuel in spherical tokamaks |
| title_sort | neutronics analysis of spin polarized fuel in spherical tokamaks |
| topic | spin-polarization tritium fusion spherical tokamak neutronics |
| url | https://doi.org/10.1088/1741-4326/adf3c6 |
| work_keys_str_mv | AT jinwhanbae neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT katarzynaborowiec neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT vittoriobadalassi neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT jasonparisi neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT ahmeddiallo neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT jonmenard neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT andreikhodak neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks AT thomasbrown neutronicsanalysisofspinpolarizedfuelinsphericaltokamaks |