D-D neutron yield in the 125 J dense plasma focus Nanofocus

OriginalPaper

Abstract.

We present here a very small transportable dense plasma focus with 125 J of energy able to be used mainly as an intense fast neutron source. The aim of this work was to design, construct and experimentally study a very compact nuclear fusion apparatus, at the lower energy limit, useful for multiple applications, such as soil humidity measurements, inspection of several materials metallic inclusions, medical neutron-therapies, etc. Besides, the possibility of using the same device as X-rays emitter has been explored. In a narrow range of deuterium filling pressure around 1 mbar, peaked Rogowski dips are observed. Correspondingly, strong neutron and hard X-ray pulses are measured. The neutron pulses last, in average, 50 ns, being about 106 the amount of neutrons per pulse. The performance of this device has shown to be higher than any other plasma focus apparatus, compar ed on the empirical scaling law of neutron yield vs. pinch current.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    J.W. Mather, in Methods of Experim. Phys., edited by R. Lovberg, H. Griem (N. York Acad. Press 1971), Vol. 9B, p. 187Google Scholar
  2. 2.
    N.V. Filippov, Sov. J. Plas. Phys. 14, 9 (1993)Google Scholar
  3. 3.
    J. Pouzo, H. Acuña, M. Milanese, R. Moroso, Eur. Phys. J. D 21, 97 (2002)CrossRefGoogle Scholar
  4. 4.
    M. Zakaullah, K. Alamgir, M. Sharif, A. Waheed, G. Murtaza, J. Fus. Energy 19, 143 (2000)CrossRefGoogle Scholar
  5. 5.
    F. Castillo-Mej\’ia, M. Milanese, R. Moroso, J. Pouzo, J. Phys. D: Appl. Phys. 30, 1499 (1997)CrossRefGoogle Scholar
  6. 6.
    Shyam, M. Srinivasam, Appl. Phys. 17, 425 (1978)Google Scholar
  7. 7.
    Lee, T. Tou, S. Moo, M. Eissa, A. Golap, K. Kwek, S. Mulyodrono, A. Smith, J. Suryadi, W. Usada, M. Zakaullah, Am. J. Phys. 56, 62 (1988)MATHGoogle Scholar
  8. 8.
    K. Kwek, T. Tou, S. Lee, IEEE Trans. Plas. Sci. 18, 826 (1990)CrossRefGoogle Scholar
  9. 9.
    J. Pouzo, D. Cortázar, M. Milanese, R. Moroso, R. P\’iriz, Small Plas. Phys. Experim., edited by S. Lee, P. Sakanaka (World Sci. Publ., London, 1988), pp. 80-100Google Scholar
  10. 10.
    H. Schmidt, “Generat., Phys. and Appl. of Super-dense Hot Z-Pinch Plasmas”, Rep. on Activ., Univ. Stuttgart, Germany (Contr. SCI CT91-0728 (TSTS))Google Scholar
  11. 11.
    M. Sadowski, H. Schmidt, H. Herold, Phys. Lett. A 83, 435 (1981)CrossRefGoogle Scholar
  12. 12.
    A. Gentilini, Ch. Maisonnier, J.-P. Rager, Comm. Plas. Phys. 5, 41 (1979)Google Scholar
  13. 13.
    M. Scholz, R. Miklaszewski, V. Gribkov, F. Mezzetti, Nukleonika 45, 155 (2000)Google Scholar
  14. 14.
    F. Beg, I. Ross, A. Lorenz, J. Worley, J.A. Dangor, M. Haines, J. Appl. Phys. 88, 3225 (2000)CrossRefGoogle Scholar
  15. 15.
    F.N. Beg, K. Kruschelnik, C. Gower, S. Torn, A.E. Dangor, A. Howard, T. Sumner, A. Bewick, V. Lebedenko, J. Dawson, D. Davidge, M. Joshi, J.R. Gillespie, Appl. Phys. Lett. 80, 3009 (2002)CrossRefGoogle Scholar
  16. 16.
    R. Lebert, W. Neff, D. Rothweller, J. X-Ray Sci. Technol. 6, 107 (1996)CrossRefGoogle Scholar
  17. 17.
    P. Lee, X. Feng, G.X. Zhang, M.H. Liu, S. Lee, Plas. Sourc., Sci. Technol. 6, 343 (1997)CrossRefMATHGoogle Scholar
  18. 18.
    H. Conrads, Proceed. of 3rd. Lat.-Am. Workshop in Plas. Phys., Invit. Lect. Book, Santiago, Chile, July 18-29, 1988, pp. 27-44 (1988)Google Scholar
  19. 19.
    F. Castillo-Mej\’ia, M. Milanese, R. Moroso, J. Pouzo, M. Santiago, IEEE Transac. Plas. Sci. 29, 921 (2001)CrossRefGoogle Scholar
  20. 20.
    H. Acuña, M. Milanese, R. Moroso, J. Pouzo, Book of Abstr. of the 85th Annual Meeting of “Asociación F\’isica Argentina”, Sept. 18-22, 2000, p. 95Google Scholar
  21. 21.
    M. Milanese, R. Moroso, J. Pouzo, Book of Abstr. of the 86th Ann. Meet. of “Asoc. F\’isica Argentina”, Sept. 18-21, 2001, p. 69Google Scholar
  22. 22.
    J. Pouzo, M. Milanese, R. Moroso, ICPP 2002, Sydney, Australia, July 15-19, 2002, AIP Conf. Proceed. 669, 277 (2003)CrossRefGoogle Scholar
  23. 23.
    J. Vargas, F. Gratton., J. Gratton , H. Bruzzone, H. Kelly, Proc. of the 6th. Int. Conf. on Plas. Phys. and Contr. Fusion Res., Berchtesgaden 1976, IAEA, Vienna (1976)Google Scholar
  24. 24.
    M. Milanese, J. Pouzo, Small Plas. Phys. Experim. (World Sci. Publ., London, 1988), pp. 66-79Google Scholar
  25. 25.
    J.H. Hubbell, S.M. Seltzer, Ionizing Radiat. Div., Phys. Lab. Nat. Instit. of Standards and Techn. Gaithersburg, MD 20899, “Tables of X-Ray Mass Attenuat. Coeffic. and Mass Energy-Absorpt. Coeffic. from 1 keV to 20 MeV for elements Z = 1 to 92 and 48 Addit. Substanc. of Dosimetric Interest”, http://physics.nist.gov/PhysRefData/XrayMassCoefGoogle Scholar

Copyright information

© Springer-Verlag Berlin/Heidelberg 2003

Authors and Affiliations

  1. 1.Instituto de Física Arroyo SecoUniversidad Nacional del Centro de la Provincia de Buenos Aires and CONICETTandilArgentina

Personalised recommendations