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Hybrid Quadrupole Lens for the Focusing Channel of the DARIA Complex

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Abstract

The results of synthesis and electromagnetic calculation of a hybrid quadrupole lens for a proton linear accelerator of the DARIA compact neutron source are presented. The lens includes a permanent magnet quadrupole with a fixed magnetic field gradient and an auxiliary electromagnetic quadrupole excited by a pulsed current. The permanent magnet quadrupole is made of a radiation resistant rare-earth magnet and the electromagnetic quadrupole is designed to compensate for permanent magnet magnetization losses resulting from radiation degradation as neutron fluence accumulates during accelerator operation. A hybrid quadrupole lens can be applied for fast adjustment of the focusing channel as well as for transporting the accelerated ion beams with different ion mass-to-charge ratios.

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Funding

The work was supported by the Ministry of Science and Higher Education of the Russian Federation under Agreement no. 075-15-2022-830 dated May 27, 2022 (continuation of Agreement no. 075-15-2021-1358 dated October 12, 2021).

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Authors and Affiliations

  1. National Research Center “Kurchatov institute”, 123182, Moscow, Russia

    I. V. Kilmetova, A. V. Kozlov, G. N. Kropachev, T. V. Kulevoy, D. A. Liakin, O. S. Sergeeva, V. S. Skachkov & Yu. B. Stasevich

  2. Joint Institute for Nuclear Research, 141980, Dubna, Russia

    G. N. Kropachev

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  1. I. V. Kilmetova
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  2. A. V. Kozlov
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  3. G. N. Kropachev
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  4. T. V. Kulevoy
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  5. D. A. Liakin
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  6. O. S. Sergeeva
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  7. V. S. Skachkov
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  8. Yu. B. Stasevich
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Correspondence to I. V. Kilmetova.

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Kilmetova, I.V., Kozlov, A.V., Kropachev, G.N. et al. Hybrid Quadrupole Lens for the Focusing Channel of the DARIA Complex. J. Surf. Investig. 17, 772–777 (2023). https://doi.org/10.1134/S1027451023040067

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