Characterization of Microwave Discharge Ion Source for high proton beam production

  • R. Miracoli
Regular Article


The production of high-current beams is a key point for different applications and the importance ofthis role is deemed to increase in the coming years, both for industrial applications and for research projects. High-current and high-brightness H+ beams can be provided by 2.45GHz MDIS --Microwave Discharge Ion Sources--, which presents many advantages in terms of compactness, high reliability, ability to operate in CW mode or in pulsed mode, reproducibility, and low maintenance. A detail characterization of two MDIS, VIS and SILHI is reported here: for each source the most important parameterwas measured and analyzed. Special attention was paid to improve the performance of the source, increasing the electron density for a more efficient ionization; as a consequence, studies to optimize the extracted current have been carried out. A series of measurements have been realized with the VIS source by inserting a thick Al2O3 tube inside the plasma chamber (passive technique) and an innovative mechanisms of plasma ignition based on electrostatic waves (ESW) was proved with a plasma reactor.


Boron Nitride Microwave Power Pulse Mode Plasma Reactor Electrostatic Wave 
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  1. 1.
    S. Gammino et al., Rev. Sci. Instrum. 81, 02B313 (2010)CrossRefGoogle Scholar
  2. 2.
    B. Wolf, Handbook of Ion Source (CRC Press, Boca Raton, 1995)Google Scholar
  3. 3.
    F. Carminati, CERN-AT-93-47-ET, 70 (1993)Google Scholar
  4. 4.
    D. Mascali et al., Nucl. Instrum. Methods A 653, 11 (2011)ADSCrossRefGoogle Scholar
  5. 5.
    F. Maimone, JACoW, A Service to the Accelerator Community, in Proceedings of EPAC08, Genoa, Italy (2008) p. 430Google Scholar
  6. 6.
    F. Maimone et al., Acta Tech. CSAV 53, 333 (2008)Google Scholar
  7. 7.
  8. 8.
    F. Maimone, INFN Report, INFN/TC-07/04, April 3 (2007)Google Scholar
  9. 9.
    R. Gobin et al., Rev. Sci. Instrum. 75, 1414 (2004)ADSCrossRefGoogle Scholar
  10. 10.
    R. Miracoli et al., Rev. Sci. Instrum. 83, 02A305 (2012)CrossRefGoogle Scholar
  11. 11.
    K. Tokiguchi et al., Rev. Sci. Instrum. 57, 1526 (1986)ADSCrossRefGoogle Scholar
  12. 12.
    R. Miracoli, Characterization of microwave discharge ion source for high proton beam production in cw and pulsed mode, PhD dissertation, Catania University (2011)Google Scholar
  13. 13.
    P. Roychowdhury et al., Rev. Sci. Instrum. 80, 123305 (2009)ADSCrossRefGoogle Scholar
  14. 14.
    G. Castro et al., Rev. Sci. Instrum. 83, 02B501 (2012)CrossRefGoogle Scholar
  15. 15.
    J. Sherman et al., Rev. Sci. Instrum. 69, 1003 (1998)ADSCrossRefGoogle Scholar
  16. 16.
    T. Taylor et al., Nucl. Instrum. Methods A 309, 37 (1991)ADSCrossRefGoogle Scholar
  17. 17.
    H. Zhang, Ion Sources (Science Press, Beijing and Springer, 1999)Google Scholar
  18. 18.
    J.M. Lagniel et al., Rev. Sci. Instrum. 71, 830 (2000)ADSCrossRefGoogle Scholar
  19. 19.
    O. Delferrire et al., Rev. Sci. Instrum. 79, 02B703 (2008)CrossRefGoogle Scholar
  20. 20.
    R. Gobin et al., Rev. Sci. Instrum. 79, 02B303 (2008)CrossRefGoogle Scholar
  21. 21.
    R. Miracoli, to be publisehd in Rev. Sci. InstrumGoogle Scholar
  22. 22.
    Y. Hirai et al., Rev. Sci. Instrum. 81, 02A325 (2010)ADSCrossRefGoogle Scholar
  23. 23.
    R. Geller, Electron Cyclotron Resonance Ion Sources and ECR Plasmas (Institute of Physics, Philadelphia, 1996)Google Scholar
  24. 24.
    S. Gammino et al., Rev. Sci. Instrum. 77, 03B511 (2006)CrossRefGoogle Scholar
  25. 25.
    I. Boscolo, Proc. Eur. Part. Acc. Conf. Vienna, 1631 (2000)Google Scholar
  26. 26.
    F. Odorici, Proc. 19th Workshop on ECR ion Sources, Grenoble (2010)Google Scholar
  27. 27.
    L. Malferrari et al., Rev. Sci. Instrum. 83, 02A343 (2012)CrossRefGoogle Scholar
  28. 28.
    L. Schachter et al., Rev. Sci. Instrum. 75, 03B511 (2006)Google Scholar
  29. 29.
    A. Simon, Phys. Rev. 98, 317 (1995)ADSCrossRefGoogle Scholar
  30. 30.
    G. Drentje et al., Rev. Sci. Instrum. 73, 516 (2002)ADSCrossRefGoogle Scholar
  31. 31.
    Y.Y. Podoba et al., Phys. Rev. Lett. 98, 255003 (2007)ADSCrossRefGoogle Scholar
  32. 32.
    S. Gammino, Diagnostics and preliminary operations of a microwave discharge plasma reactor for complex molecules dissociation in Proceedings of 34th EPS Conference on Plasma Physics, Warsaw, July ECA, Vol. 31F (2007) P-2.066Google Scholar
  33. 33.
    S. Gammino, Microwave absorption in dense and overdense plasmas generated in a Plasma Reactor for Environmental Applications, in Proceedings of 35th EPS Conference on Plasma Physics, Hersonissos, Crete, Greece, June ECA, Vol. 32D (2008) P-1.174Google Scholar
  34. 34.
    Hiden ESPion-Advanced Langmuir Probe for Plasma Diagnostics. Available online:
  35. 35.
    D. Mascali et al., Radiat. Eff. Defects Solids 163, 471 (2008)ADSCrossRefGoogle Scholar
  36. 36.
    R.E. Collin, Foundations for Microwave Engineering (Institute of Electrical and Electronics Engineers, 2001)Google Scholar
  37. 37.
    T.H. Stix, Waves in Plasmas (Springer-Verlag, New York, 1992)Google Scholar
  38. 38.
    I.B. Bernestein, Phys. Rev. 109, 10 (1958)MathSciNetADSCrossRefGoogle Scholar
  39. 39.
    K.S. Golovanivsky et al., Phys. Rev. E 52, 2969 (1995)ADSCrossRefGoogle Scholar
  40. 40.
    K. Nagaoka et al., Phys. Rev. Lett. 89, 075001 (2002)ADSCrossRefGoogle Scholar
  41. 41.
    R.B. White et al., Plasma Phys. 16, 565 (1974)ADSCrossRefGoogle Scholar
  42. 42.
    S. Peggs, Proceedings LINAC Conference, Tsukuba, Japan, TU203 (2010)Google Scholar
  43. 43.
    J. Alonso, Expression of interest for a novel search for cp violation in the neutrino sector: Daedalus (2010)Google Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • R. Miracoli
    • 1
    • 2
  1. 1.INFNLaboratori Nazionali del Sud via S. Sofia 62CataniaItaly
  2. 2.Università degli Studi di CataniaDipartimento di Fisica e AstronomiaCataniaItaly

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