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Physical design of a high-intensity compact D–D/D–T neutron generator based on the internal antenna RF ion source

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A Publisher Erratum to this article was published on 02 February 2024

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Abstract

A high-intensity compact D–D/D–T neutron generator with a thick adsorption target is designed with an intensity of 1012 n/s. In this work, a radio-frequency (RF) ion source ignited by an internal antenna is designed with magnetic mirror fields in both axial and radial directions, which can facilitate the confinement of high-density plasma and prolong the service life of the ion source. According to the finite element method software COMSOL Multiphysics, a high-current low-energy D+ beam transport line is simulated and designed with the deuterium beam of 200 keV/6 mA. In particular, the adsorption target is fixed at an angle of 45° with respect to the beam direction, which is beneficial to reduce the beam power density of the target. The simulation results show that the maximum temperature of the target surface is 171.0 °C, which would reduce deuterium or tritium release from the adsorption target. According to the Multi-layer computing model, neutron energy spectra, angular distributions and integrated yields of the compact D–D/D–T neutron generator are calculated and evaluated, corresponding to a thick adsorption target at the deuterium beam of 200 keV/6 mA. The compact D–D/D–T neutron generator can produce quasi-mono-energetic neutrons with energy of 2.45 or 14.1 MeV, respectively, corresponding to the neutron yields up to 6.06 × 109 and 1.18 × 1012 n/s.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: All data generated or analysed during this study are included in this published article.]

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Acknowledgements

This work is supported by the National Natural Science Foundations of China (12075105, U2167203) and the Fundamental Research Funds for the Central Universities (lzujbky-2022-kb07, lzujbky-2023-stlt01, lzujbky-2022-ey14).

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Authors and Affiliations

  1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China

    X. H. Bai, Z. Wei, K. Wu, S. Y. Zhang, P. Q. Zhang, Y. N. Han, M. Li, J. Y. Wang, Z. Y. Wei, Z. E. Yao, J. R. Wang & Y. Zhang

  2. MOE Frontiers Science Center for Rare Isotopes, Lanzhou University, Lanzhou, 730000, China

    Z. Wei, S. Y. Zhang, Z. E. Yao, J. R. Wang & Y. Zhang

  3. Engineering Research Center for Neutron Application, Ministry of Education, Lanzhou University, Lanzhou, 730000, China

    Z. Wei, S. Y. Zhang, Z. E. Yao, J. R. Wang & Y. Zhang

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  1. X. H. Bai
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Corresponding author

Correspondence to Y. Zhang.

Additional information

Communicated by Navin Alahari

The original online version of this article was revised: In this article S.Y. Zhang was incorrectly denoted as the corresponding author but it should have been Y. Zhang.

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Bai, X.H., Wei, Z., Wu, K. et al. Physical design of a high-intensity compact D–D/D–T neutron generator based on the internal antenna RF ion source. Eur. Phys. J. A 59, 284 (2023). https://doi.org/10.1140/epja/s10050-023-01177-3

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  • DOI: https://doi.org/10.1140/epja/s10050-023-01177-3

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