A possible scheme for the surface muon beamline at CSNS

  • Lu-Ping ZhouEmail author
  • Qi-Li Mu
  • Han-Tao Jing
  • Jing-Yu Tang
  • Yu Bao
  • Ying-Peng Song


An experimental muon source is planned for the China Spallation Neutron Source. A simplified beamline with a limited number of magnets is achieved using a FODO lattice for implementation in a future preliminary stage. The yield of the muon delivered to the experimental sample is slightly larger than 105 μ+/s within the FWHM beam spot (~ Ø30 mm) from a thick muon target. In addition, the beam polarization is 92% and the contamination that is mainly formed by positrons is approximately a fraction of 1%.


CSNS Polarized muon beamline Carbon target FODO lattice 



The author would like to thank all colleagues in the EMuS collaborations.


  1. 1.
    F. Foroughi, E. Morenzoni, T. Prokscha et al., Upgrading the PSI muon facility. Hyperfine Interact. 138(1–4), 483–488 (2001). CrossRefGoogle Scholar
  2. 2.
    R. Abela, F. Foroughi, D. Renker, Muon beams at PSI. Z. Phys. C Part. Fields 56(1), S240–S242 (1992). CrossRefGoogle Scholar
  3. 3.
    T. Prokscha, E. Morenzoni, K. Deiters et al., The new μE4 beam at PSI: a hybrid-type large acceptance channel for the generation of a high intensity surface-muon beam. Nucl. Instrum. Methods A 595(2), 317–331 (2008). CrossRefGoogle Scholar
  4. 4.
    G.M. Marshall, Muon beams and facilities at TRIUMF. Z. Phys. C Part. Fields 56(1), S226–S231 (1992). CrossRefGoogle Scholar
  5. 5.
    J.L. Beveridge, J. Doornbos, D.M. Garner, Muon facilities at TRIUMF. Hyperfine Interact. 32(1–4), 907–912 (1986). CrossRefGoogle Scholar
  6. 6.
    A.D. Hillier, D.J. Adams, P.J. Baker et al., Developments at the ISIS muon source and the concomitant benefit to the user community. J. Phys. Conf. Ser. 551, 012067 (2014). CrossRefGoogle Scholar
  7. 7.
    T. Matsuzaki, K. Ishida, K. Nagamine et al., The RIKEN-RAL pulsed muon facility. Nucl. Instrum. Methods A 465, 365–383 (2001). CrossRefGoogle Scholar
  8. 8.
    Y. Miyake, K. Shimomura, N. Kawamura et al., J-PARC muon facility, MUSE. Phys. Proc. 30, 46–49 (2012). CrossRefGoogle Scholar
  9. 9.
    P. Strasser, A. Koda, et al. Status of the new surface muon beamline at J-PARC MUSE, in Proceeding of 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017) (2018), p. 011061.
  10. 10.
    R. Kadono, Y. Miyake, MUSE, the goddess of muons, and her future. Rep. Prog. Phys. 75(2), 026302 (2012). CrossRefGoogle Scholar
  11. 11.
    H.S. Chen, X.L. Wang, China’s first pulsed neutron source. Nat. Mater. 15(7), 689–691 (2016). MathSciNetCrossRefGoogle Scholar
  12. 12.
    H.T. Jing, C. Meng, J.Y. Tang et al., Production target and muon collection studies for an experimental muon source at CSNS. Nucl. Instrum. Methods A 684(684), 109–116 (2012). CrossRefGoogle Scholar
  13. 13.
    K. Nagamine, Pulsed μSR facility at the KEK Booster. Hyperfine Interact. 8(4–6), 787–795 (1981). CrossRefGoogle Scholar
  14. 14.
    A. Ferrari, P. R. Sala, A. Fasso, et al. FLUKA: A Multi-Particle Transport Code. Technical report, CERN-2005-10 (2005).
  15. 15.
    PSI Graphic Transport Framework, by U. Rohrer based on a CERN-SLAC-FERMILAB version by K.L. Brown et alGoogle Scholar
  16. 16.
    T. J. Roberts, D. M. Kaplan, G4beamline simulation program for matter-dominated beam lines, in 2007 IEEE Particle Accelerator Conference (PAC).
  17. 17.
    S.Y. Lee, Accelerator Physics, 3rd edn. (M. World Scientific, Singapore, 2011). CrossRefGoogle Scholar

Copyright information

© China Science Publishing & Media Ltd. (Science Press), Shanghai Institute of Applied Physics, the Chinese Academy of Sciences, Chinese Nuclear Society and Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Lu-Ping Zhou
    • 1
    • 2
    • 3
    Email author
  • Qi-Li Mu
    • 2
    • 3
    • 5
  • Han-Tao Jing
    • 2
    • 3
  • Jing-Yu Tang
    • 1
    • 2
    • 3
  • Yu Bao
    • 2
    • 3
  • Ying-Peng Song
    • 2
    • 3
    • 4
  1. 1.University of Chinese Academy of SciencesBeijingChina
  2. 2.Institute of High Energy PhysicsChinese Academy of SciencesBeijingChina
  3. 3.Spallation Neutron Source Science CenterDongguanChina
  4. 4.University of Science and Technology of ChinaHefeiChina
  5. 5.Jilin UniversityChangchunChina

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