Recent progress in 1 MJ Plasma-Focus research

• Autorzy: Scholz M. , Karpiński L. , Paduch M. , Tomaszewski K. , Miklaszewski R. , Szydlowski A.
• Języki publikacji: EN

Abstrakty

EN

The paper reports on actual operational characteristics of the PF-1000 facility and it presents results of the first neutron experiments performed with a new set of large Mather-type electrodes, which were designed for shots up to 1000 kJ. Dynamics of a current-sheath was studied by means of two high-speed streak cameras and a two-frame camera. The last one was used for the side-on observation of the pinch column. The high-speed streak pictures were taken side-on behind slits oriented in the radial or axial direction. On the basis of the pictures taken behind the radial slit, average values of the radial compression and expansion velocities were estimated. Time-resolved X-ray signals were measured with PIN diodes covered by different filters, and they were compared with other traces (voltage waveforms, dI/dt signals, and neutron-induced pulses) in order to determine their correlation. The total neutron yield (Ytot), i.e. the number of neutrons produced during a single discharge and emitted in various directions, was measured by means of several silver-activation detectors placed at different angles around the PF-1000 experimental chamber.

Słowa kluczowe

EN

neutron emission; plasma focus; scaling laws; soft X-ray radiation

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, nr 1
• Strony: 35--39
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Scholz M.

• Institute of Plasma Physics and Laser Microfusion, 00-908 Warsaw, P. O. Box 49, Poland, Tel.: [phone], Fax: [phone]

autor

Karpiński L.

• Institute of Plasma Physics and Laser Microfusion, 00-908 Warsaw, P. O. Box 49, Poland, Tel.: [phone], Fax: [phone]

autor

Paduch M.

• Institute of Plasma Physics and Laser Microfusion, 00-908 Warsaw, P. O. Box 49, Poland, Tel.: [phone], Fax: [phone]

autor

Tomaszewski K.

• Institute of Plasma Physics and Laser Microfusion, 00-908 Warsaw, P. O. Box 49, Poland, Tel.: [phone], Fax: [phone]

autor

Miklaszewski R.

• Institute of Plasma Physics and Laser Microfusion, 00-908 Warsaw, P. O. Box 49, Poland, Tel.: [phone], Fax: [phone]

autor

Szydlowski A.

• The Andrzej Soltan Institute for Nuclear Studies (IPJ), 05-400 Otwock-Swierk, Poland

Bibliografia

• 1. Bernard A, Bruzzone H, Choi P et al. (1998) Scientific status of plasma focus research. J Moscow Phys Soc 8:93–170
• 2. Bernard A, Cloth P, Conrads H et al. (1997) The dense plasma focus – a high intensity neutron source. Nucl Instrum Meth 145:191–218
• 3. Herold H, Jerzykiewicz A, Sadowski M, Schmidt H (1989) Comparative analysis of large plasma focus experiments performer at IPF, Stuttgart, and IPJ, Swierk. Nucl Fusion 29:1255–1260
• 4. Krompholz H, Ruhl F, Schneider W, Schonbach K, Herziger G (1981) A scaling low for Plasma-Focus devices. Phys Lett A 82:82–84
• 5. Scholz M, Miklaszewski R, Gribkov VA, Mezzetti F (2000) PF1000 device. Nukleonika 45:155–158