Hyperfine Interactions

, Volume 65, Issue 1–4, pp 1149–1158 | Cite as

Japanese hadron facility plans and future μSR

  • K. Nagamine
Facilities, Outlooks


The proposed next major science project in Japan, the high intensity 1 GeV proton accelerator with unique beam characteristics, is described here. It will supply a proton beam of more than 100 μA in either de mode or sharply pulsed mode (down to 10 ns), using a specially designed time structure conversion ring. The beam will be used for keV μ+ generation at the production target, MeV surface μ+ production and 10 MeV decay μ+ and μ production, as well as a possible slow μ production. All of these unique muon beams will be developed for the next generation of μSR experiments. With the development of the keV μ+ source particularly in mind, a pilot station is now under construction at UT-MSL/KEK. Possible new μSR experiments are also reviewed.


Thin Film Proton Beam Production Target Pulse Mode Time Structure 
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  1. [1]
    The Japan Hadron Project; unpublished booklet from Inst. Nucl. Study, University of Tokyo (1988).Google Scholar
  2. [2]
    K. Nagamine, Hyp. Int. 8 (1981) 787; UT-MSL Newsletter 1–8 (1981–1988) eds. K. Nagamine et al.CrossRefGoogle Scholar
  3. [3]
    K. Nagamine, Atomic Physics 10 (1087) 221.Google Scholar
  4. [4]
    A.P. Mills, Jr. et al., Phys. Rev. Lett. 56 (1986) 1463.CrossRefADSGoogle Scholar
  5. [5]
    S. Chu et al., Phys. Rev. Lett. 60 (1988) 101.CrossRefADSGoogle Scholar
  6. [6]
    K. Ishida et al., contribution to μSR90.Google Scholar
  7. [7]
    K. Nagamine, Proc. Japan Academy 65 (1989) 225.Google Scholar
  8. [8]
    D. Taqqu, privata communication.Google Scholar
  9. [9]
    G.A. Beer et al., Phys. Rev. Lett. 57 (1986) 671.CrossRefADSGoogle Scholar
  10. [10]
    A. Matsushita et al., Hyp. Int. 65 (1990) 1071.Google Scholar
  11. [11]
    P. Marangos et al., (1990) to be published.Google Scholar
  12. [12]
    G.M. Marshall et al., (1990) to be published.Google Scholar
  13. [13]
    K. Nagamine et al., Phys. Rev. Lett. 53 (1984) 1763.CrossRefADSGoogle Scholar

Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • K. Nagamine
    • 1
  1. 1.Meson Science LaboratoryUniversity of Tokyo (UT-MSL)TokyoJapan

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