On scaling of proton- boron fusion power in a nanosecond vacuum discharge
In this paper, we present the results of further PiC simulations in the full electromagnetic code of the processes leading to the proton-boron reactions in a single device for plasma confinement, based on miniature nanosecond vacuum discharge (NVD) in a cylindrical geometry. In particular, we presen...
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2024.1440040/full |
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| author | Yu. K. Kurilenkov S. N. Andreev |
| author_facet | Yu. K. Kurilenkov S. N. Andreev |
| author_sort | Yu. K. Kurilenkov |
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| description | In this paper, we present the results of further PiC simulations in the full electromagnetic code of the processes leading to the proton-boron reactions in a single device for plasma confinement, based on miniature nanosecond vacuum discharge (NVD) in a cylindrical geometry. In particular, we present and discuss in more detail the α particle output for the real electrodes geometry used in the first aneutronic proton–boron fusion experiments with NVD. It follows from them that the total yield of α particles was accumulated in the initial experiments due to only single head-on converging of protons and boron ions accelerated in a very narrow potential well to the discharge axis. Further, in search of the ways for optimizing of proton–boron fusion in NVD, we study the scaling of fusion power depending on the size of the virtual cathode (or the inner radius of the anode space). The results of the PiC simulations by KARAT code show that the number of the proton-boron reactions at anode space of NVD increases with the anode volume grow, and the α particles output turns out to be proportional to the value of anode radius in the range RA ≈ 0.1–0.5 cm. However, the number of proton-boron reactions reaches some saturation under RA growing at the fixed time of high voltage applied and value of the energy input. In general, the formation of a more voluminous potential well (wider in radius and extended along the discharge axis), with well–defined oscillations of protons and boron ions in it, provides a noticeable increase in the output of α particles. |
| format | Article |
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| institution | Kabale University |
| issn | 2296-424X |
| language | English |
| publishDate | 2024-11-01 |
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| spelling | doaj-art-d85004980b2f4764b0df28f7e3d6d5802024-11-22T12:55:35ZengFrontiers Media S.A.Frontiers in Physics2296-424X2024-11-011210.3389/fphy.2024.14400401440040On scaling of proton- boron fusion power in a nanosecond vacuum dischargeYu. K. Kurilenkov0S. N. Andreev1Joint Institute for High Temperatures of the Russian Academy of Sciences, Moscow, RussiaMoscow Institute of Physics and Technology (National Research University), Dolgoprudny, RussiaIn this paper, we present the results of further PiC simulations in the full electromagnetic code of the processes leading to the proton-boron reactions in a single device for plasma confinement, based on miniature nanosecond vacuum discharge (NVD) in a cylindrical geometry. In particular, we present and discuss in more detail the α particle output for the real electrodes geometry used in the first aneutronic proton–boron fusion experiments with NVD. It follows from them that the total yield of α particles was accumulated in the initial experiments due to only single head-on converging of protons and boron ions accelerated in a very narrow potential well to the discharge axis. Further, in search of the ways for optimizing of proton–boron fusion in NVD, we study the scaling of fusion power depending on the size of the virtual cathode (or the inner radius of the anode space). The results of the PiC simulations by KARAT code show that the number of the proton-boron reactions at anode space of NVD increases with the anode volume grow, and the α particles output turns out to be proportional to the value of anode radius in the range RA ≈ 0.1–0.5 cm. However, the number of proton-boron reactions reaches some saturation under RA growing at the fixed time of high voltage applied and value of the energy input. In general, the formation of a more voluminous potential well (wider in radius and extended along the discharge axis), with well–defined oscillations of protons and boron ions in it, provides a noticeable increase in the output of α particles.https://www.frontiersin.org/articles/10.3389/fphy.2024.1440040/fullvacuum dischargevirtual cathodepotential wellproton-boron reactionfusion power scaling |
| spellingShingle | Yu. K. Kurilenkov S. N. Andreev On scaling of proton- boron fusion power in a nanosecond vacuum discharge Frontiers in Physics vacuum discharge virtual cathode potential well proton-boron reaction fusion power scaling |
| title | On scaling of proton- boron fusion power in a nanosecond vacuum discharge |
| title_full | On scaling of proton- boron fusion power in a nanosecond vacuum discharge |
| title_fullStr | On scaling of proton- boron fusion power in a nanosecond vacuum discharge |
| title_full_unstemmed | On scaling of proton- boron fusion power in a nanosecond vacuum discharge |
| title_short | On scaling of proton- boron fusion power in a nanosecond vacuum discharge |
| title_sort | on scaling of proton boron fusion power in a nanosecond vacuum discharge |
| topic | vacuum discharge virtual cathode potential well proton-boron reaction fusion power scaling |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2024.1440040/full |
| work_keys_str_mv | AT yukkurilenkov onscalingofprotonboronfusionpowerinananosecondvacuumdischarge AT snandreev onscalingofprotonboronfusionpowerinananosecondvacuumdischarge |