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A High Intensity Positron Beam at the Brookhaven Reactor

  • K. G. Lynn
  • M. Weber
  • L. O. Roellig
  • A. P. MillsJr.
  • A. R. Moodenbaugh
Part of the NATO ASI Series book series (NSSB, volume 169)

Abstract

We describe a high intensity, low energy positron beam utilizing high specific activity 64Cu sources (870 Ci/g) produced in a reactor with high thermal neutron flux. Fast-to-slow moderation can be performed in a self moderation mode or with a transmission moderator. Slow positron rates up to 1.6 × 108 e+/s with a half life of 12.8 h are calculated. Up to 1.0 × 108 e+/s have been observed. New developments including a Ne moderator and an on-line isotope separation process are discussed.

Keywords

Copper Layer Brookhaven National Laboratory Positron Beam Single Crystal Copper Isotopic Copper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    For example: A.P. Mills, Jr., in “Positron Scattering in Gases”, J.W. Humberston and M.R.C. McDowell eds. Plenum Press, 121 (1984).CrossRefGoogle Scholar
  2. 2.
    R.J. Drachman in “Positron Scattering in Gases,” ibid, p. 121.Google Scholar
  3. 3.
    R.H. Howell, P. Meyer, I.J. Rosenberg, J.J. Fluss, Phys. Rev. Lett. 54:1698 (1985)ADSCrossRefGoogle Scholar
  4. K.G. Lynn, A.P. Mills, Jr., R.N. West, S. Berko, K.F. Canter, L.O. Roellig; Phys. Rev. Lett. 54: 1702 (1985).ADSCrossRefGoogle Scholar
  5. 4.
    To be presented by L. Roellig in these proceedings.Google Scholar
  6. 5.
    For example: H. Hoinkes, Rev. Mod. Phys. 52:933 (1980) and refs. therein.ADSCrossRefGoogle Scholar
  7. 6.
    K.G. Lynn, D.N. Lowy, I.K. McKenzie, J. Phys. C: Solid State Phys. 13: 919 (1980).ADSCrossRefGoogle Scholar
  8. 7.
    A.P. Mills, Jr., Appl. Phys. Lett. 23: 189 (1980).ADSGoogle Scholar
  9. 8.
    W.E. Frieze, D.W. Gidley, K.G. Lynn, Phys. Rev. B31: 5628 (1985).ADSCrossRefGoogle Scholar
  10. 9.
    R.H. Howell, R.A. Alvarez in “Positron Scattering Gases”, as 1, p. 155Google Scholar
  11. 10.
    A. Vehanen, J. Makinen, Appl. Phys. A36: 97 (1985).CrossRefGoogle Scholar
  12. 11.
    D.M. Chen, K.G. Lynn, R. Pareja, B. Nielsen, Phys. Rev. B31: 4133 (1985).Google Scholar
  13. 12.
    R. Engleman, Jr., R.A. Keller, C.M. Miller, N.S. Nogar, F.A. Paisner, Nucl. Inst. and Meth. in Phys. Res. Section B26:448 (1987).ADSCrossRefGoogle Scholar
  14. 13.
    E.M. Gullikson, A.P. Mills, Jr., Phys. Rev. Lett. 57: 376 (1986).ADSCrossRefGoogle Scholar
  15. 14.
    In “HFBR Handbook”, S. Shapiro, D.C. Rorer, H. Kuper eds. informal report Brookhaven National Laboratory.Google Scholar
  16. 15.
    M. Mourino, H. Lobl, R. Paulin, Phys. Lett. 71A:106 (1979).ADSGoogle Scholar
  17. 16.
    A. Vehanen, K.G. Lynn, P.J. Schultz, M. Eldrup, Appl. Phys. A32: 163 (1983).CrossRefGoogle Scholar
  18. 17.
    A.P. Mills, Jr. in Proc. LXXXIII Intern. School of Physics “Enrico Fermi”, W. Brandt, A. Dupasquier eds. (Academic Press, N.Y. 1982).Google Scholar
  19. 18.
    A.P. Mills, Jr., P.M. Platzman, B.L. Brown, Phys.Rev.Lett. 41: 1079 (1978)ADSCrossRefGoogle Scholar
  20. 19.
    A.P. Mills, Jr., Phys. Rev. Lett. 41: 1828 (1978).ADSCrossRefGoogle Scholar
  21. 20.
    H.E. Hansen, S. Linderoth, K. Petersen, Appl. Phys. A29: 99 (1982).Google Scholar
  22. 21.
    A.P. Mills, Jr., E.M. Gullikson, Appl. Phys. Lett. 49: 1121 (1986).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • K. G. Lynn
    • 1
  • M. Weber
    • 2
  • L. O. Roellig
    • 2
  • A. P. MillsJr.
    • 3
  • A. R. Moodenbaugh
    • 1
  1. 1.Brookhaven National LaboratoryUptonUSA
  2. 2.City College of the City University of New YorkUSA
  3. 3.A.T. & T. Bell LaboratoriesMurrayUSA

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