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Results of large scale Plasma-Focus experiments and prospects for neutron yield optimization

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper summarizes results of the recent Plasma-Focus (PF) studies carried out with different PF facilities in Poland, which were operated at energies ranging from 100 kJ to about 1000 kJ. Particular attention has been paid to currentsheath (CS) dynamics, the emission of pulsed X-rays, fast electron beams, energetic ion beams, and fusion-produced neutrons. Some efforts, undertaken in order to increase the neutron emission, have been described. In particular, nuclear targets made of D2O-ice layers, which were deposited upon special cryogenic devices, have been applied in the PF-360 machine. An increase in the neutron yield from 2.4×1010 up to 3.8×1010 neutrons per shot has been achieved in 130-kJ discharges. With the PF-1000 machine, for the first time the well-formed plasma pinch columns were obtained in PF discharges performed at 1 MJ, and the neutron yield of 2×1011 neutrons per shot was achieved.
Słowa kluczowe
Czasopismo
Rocznik
Strony
31--37
Opis fizyczny
Bibliogr. 40 poz., rys.
Twórcy
autor
  • The Andrzej Soltan Institute for Nuclear Studies, Department of Plasma Physics and Technology, 05-400 Otwock/Swierk, Poland, Tel.: +48 22/ 718 05 36, Fax: 48 22/ 779 34 81
autor
  • Institute of Plasma Physics and Laser Microfusion Department of Magnetized Plasmas, 23 Hery Str., 00-908 Warsaw, Poland
Bibliografia
  • 1. Abdallah Jr J, Clark REH, Faenov AYa et al. (1999) Electron beam effects on the spectroscopy of multiply charged ions in Plasma Focus experiments. J Quant Spectr & Rad Trans 62:85–92
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  • 3. Baranowski J, Jakubowski L, Sadowski M, Zebrowski J (2001) Studies of Plasma-Focus discharges in the PF-360 facility equipped with a needle D2O-ice target. Nukleonika 46;S1:69–72
  • 4. Bernard A, Coudeville A, Garconnet JP, Jolas A, de Mascureau J, Nazet C (1978) Le plasma focus: interaction plasma-courant et phénom¯nes collectifs. J Physique C 39;S5C1:245–255
  • 5. Bernard A, Bruzzone H, Choi P et al. (1998) Scientific status of Plasma Focus research. J Moscow Phys Soc 8:93–170
  • 6. Conrads H, Cloth P, Demmeler M, Hecker R (1972) Velocity distribution of the ions producing neutrons in a Plasma Focus. Phys Fluids 15:209–211
  • 7. Czaus K, Baranowski J, Sadowski M, Skladnik-Sadowska E, Zebrowski J (2001) Anisotropy of the neutron emission from PF360 facility operated without and with solid-state targets. Nukleonika 46;S1:77–80
  • 8. Gates DC, Demeter LJ (1970) Production of 14-MeV neutrons with a 500-kJ coaxial plasma gun (abstract). Bull Amer Phys Soc 15:1494
  • 9. Gullickson RL, Sahlin HL (1978) Measurements of high-energy deuterons in the Plasma Focus device. J Appl Phys 49:1099–1105
  • 10. Herold H, Bertalot L, Deutsch R et al. (1982) Investigation of the neutron production phases of a large Plasma Focus device. In: Plasma Physics and Controlled Nuclear Fusion Research – Proc 9th International Conference. Baltimore, USA 2:405–416
  • 11. Herold H, Jerzykiewicz A, Sadowski M, Schmidt H (1989) Comparative analysis of large Plasma Focus experiments performed at IPF, Stuttgart, and at IPJ, Swierk. Nucl Fusion 29:1255–1269
  • 12. Jakubowski L, Sadowski M, Baronova EO (1996) Experimental studies of hot-spots inside PF discharges with argon admixtures. In: ICPP’96 – International Conference on Plasma Physics. Nagoya, Japan 2:1326–1329
  • 13. Jakubowski L, Sadowski M, Baronova EO, Vikhrev VV (1998) Electron beams and X-ray polarization effects in Plasma-Focus discharges. In: BEAMS’98 – 12th International Conference on High-Power Particle Beams. Haifa, Israel II:615–618
  • 14. Jerzykiewicz A, Bielik M, Jankowicz Z et al. (1983) Preliminary investigations of 360-kJ Plasma-Focus device. In: 11th EPS Conference on Controlled Fusion and Plasma Physics, Aachen, Germany I:485–488
  • 15. Kaliski S, Baranowski J, Borowiecki M et al. (1975) The Plasma Focus-Laser system; theory and experiment. J Techn Phys 16:387–401
  • 16. Kies W, Decker G, Berntien U et al. (2000) Pinch modes produced in the SPEED2 Plasma Focus. Plasma Sources Sci & Techn 9:279–295
  • 17. Krompholz H, Michel L (1977) Neutron-, ion-, and electron-energy spectra in a 1 kJ Plasma Focus. Appl Phys 13:29–35
  • 18. Mozer A, Sadowski M, Herold H, Schmidt H (1982) Experimental studies of fast deuterons, impurity- and admixture-ions emitted from a Plasma Focus. J Appl Phys 53:2959–2964
  • 19. Pasternak A, Sadowski M (1998) Theoretical study of ion motion within a Plasma Focus region. J Techn Phys 39;S:45–49
  • 20. Sadowski M, Schmidt H, Herold H (1981) Time-resolved studies of deuteron beams emitted from a Plasma Focus. Phys Lett. A 83:435–439
  • 21. Sadowski M, Herold H, Schmidt H, Shakhatre M (1984) Filamentary structure of a pinch column in Plasma Focus discharges. Phys Lett. A 105:117–123
  • 22. Sadowski M, Zebrowski J, Rydygier E, Kucinski J (1988) Ion emission from Plasma-Focus facilities. Plasma Phys & Control Fusion 30:763–769
  • 23. Sadowski M (1996) Ion beams from high-current PF facilities. In: BEAMS’96 – 11th International Conference on High Power Particle Beams. Prague, Czech Republic I:170–173
  • 24. Sadowski M (1998) Studies of neutron emission from various Plasma-Focus facilities in Poland. J Moscow Phys Soc 8:197–211
  • 25. Sadowski M, Zebrowski J (1998) Diagnostic methods of experimental studies on emission of pulsed deuteron and electron beams from the PF-360 facility. J Techn Phys 39:115–119
  • 26. Sadowski M (1999) Research on magnetized plasmas in Poland; history, status, and prospects. Problems Atom Sci & Techn, Series: Plasma Phys 3/4:173–177
  • 27. Sadowski M (1999) Problems and trends of Plasma-Focus research. In: Current Trends in International Fusion Research –Proc Third Symposium. Washington, USA I:13–15
  • 28. Sadowski M, Kubes P, Kravarik J et al. (2000) New Plasma-Focus experiments without and with additional targets (abstract). In: ICOPS-2000 – 27th IEEE International Conference on Plasma Science. New Orleans, USA 1:95
  • 29. Sadowski MJ (2000) Progress in dense magnetized plasma research in Poland: a review. Problems Atom Sci & Techn, Series: Plasma Phys 3;5:73–77
  • 30. Sadowski MJ, Scholz M (2000) The main issues of dense magnetized plasma studies. In: ICPP-2000 – International Congress on Plasma Physics. Quebec City, Canada II:580–583
  • 31. Sadowski MJ, Scholz M (2001) Results of large-scale Plasma-focus experiments and prospects for neutron yield optimization. In: Current Trends in Int Fusion Research – Proc Fourth Symposium. Washington, USA 1:14–17
  • 32. Scholz M, Karpinski L, Pisarczyk T et al. (1998) Study of current sheath dynamics and charged particle emission from PF-1000 facility. In: ICPP & 25th EPS Conference on Controlled Fusion and Plasma Physics. Praha, Czech Republic ECA 22C:2868–2871
  • 33. Scholz M, Karpinski L, Paduch M et al. (2000) Recent results of experiments with PF-1000 Plasma-Focus facility operated at energy levels above 0.5 MJ (abstract). In: ICOPS-2000 – 27th IEEE International Conference on Plasma Science. New Orleans, USA 1:94
  • 34. Scholz M, Karpinski L, Paduch M et al. (2001) Recent progress in 1 MJ Plasma-Focus research. Nukleonika 46;1:35–39
  • 35. Scholz M, Karpinski L, Paduch M, Tomaszewski K, Miklaszewski R, Sadowski MJ, Szydlowski A (2001) Experiments with the PF-1000 Plasma-Focus facility at the 1 MJ level. In: Current Trends in Int Fusion Research – Proc Fourth Symposium. Washington, USA 1:18–20
  • 36. Stanislawski J, Baranowski J, Sadowski M, Zebrowski J (2001) Investigation of Plasma-Focus discharges in the PF-360 facility with additional D2 gas-puffed targets. Nukleonika 46;S1:73–76
  • 37. Stygar W, Gerdin G, Venneri F, Mandrekas J (1982) Particle beams generated by a 6–12.5 kJ Dense Plasma Focus. Nucl Fusion 22:1161–1172
  • 38. Szydlowski A, Scholz M, Karpinski L, Sadowski M, Tomaszewski K, Paduch M (2001) Neutron and fast ion emission from PF-1000 facility equipped with new large electrodes. Nukleonika 46;S1:61–64
  • 39. Ware KD, Williams AH, Clark RW (1973) Operation of a 720 kJ, 60 KV Dense Plasma Focus (abstract). Bull Amer Phys Soc 18:1364
  • 40. Zebrowski, Baranowski J, Jakubowski L, Sadowski M (2000) Studies of Plasma-Focus discharges within the PF-360 facility equipped with a planar D2O-ice target. Nukleonika 46;S1:65–68
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0006-0028
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