Comparison of optical spectra recorded during DPF-1000U plasma experiments with gas-puffing

• Autorzy: Zaloga D. R. , Skladnik-Sadowska E. , Kubkowska M. , Ladygina M. S. , Malinowski K. , Kwiatkowski R. , Sadowski M. J. , Paduch M. , Zielinska E. , Makhlaj V. A.

Identyfikatory

DOI

10.1515/nuka-2015-0058

• Konferencja: Kudowa Summer School „Towards Fusion Energy” (12th ; 9-13.06.2014 ; Kudowa Zdrój, Poland)
• Języki publikacji: EN

Abstrakty

EN

The results are presented of the optical spectra measurements for free plasma streams generated with the use of the modifi ed DPF-1000U machine. This facility was recently equipped with a gas injection system (the so-called gas-puff) placed on the symmetry axis behind the central opening in the inner electrode. The DPF-1000U experimental chamber was fi lled up with pure deuterium at the initial pressure of 1.6 or 2.4 mbar. Additionally, when the use was made of the gas-puff system about 1 cm3 of pure deuterium was injected at the pressure of 2 bars. The gas injection was initiated 1.5 or 2 ms before the triggering of the main discharge. The investigated plasma discharges were powered from a condenser bank charged initially to 23 kV (corresponding to the energy of 352 kJ), and the maximum discharge current amounted to about 1.8 MA. In order to investigate properties of a dense plasma column formed during DPF-1000U discharges the use was made of the optical emission spectroscopy. The optical spectra were recorded along the line of sight perpendicular to the vacuum chamber, using a Mechelle®900 spectrometer. The recent analysis of all the recorded spectra made it possible to compare the temporal changes in the electron density of a freely propagating plasma stream for discharges without and with the gas-puffing. Using this data an appropriate mode of operation of the DPF-1000U facility could be determined.

Słowa kluczowe

EN

electron density; gas-puff; optical spectrum; plasma focus; plasma stream

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 2
• Strony: 309--314
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Zaloga D. R.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland, Tel.: [phone], Fax: [phone]

autor

Skladnik-Sadowska E.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland, Tel.: [phone], Fax: [phone]

autor

Kubkowska M.

• Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland

autor

Ladygina M. S.

• Institute of Plasma Physics, NSC KIPT, 61-108 Kharkov, Ukraine

autor

Malinowski K.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland, Tel.: [phone], Fax: [phone]

autor

Kwiatkowski R.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland, Tel.: [phone], Fax: [phone]

autor

Sadowski M. J.

• National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland and Institute of Plasma Physics
• Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland

autor

Paduch M.

• Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland

autor

Zielinska E.

• Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland

autor

Makhlaj V. A.

• Institute of Plasma Physics, NSC KIPT, 61-108 Kharkov, Ukraine

Bibliografia

• 1. Scholz, M., Drozdowicz, K., Karpinski, L., Krauz, V., Kubes, P., Paduch, M., Pisarczyk, T., Sadowski, M. J., Kurowski, A., Igielski, A., Dankowski, J., Woznicka, U., Janik, W., Czaus, K., Malinowski, K., Kwiatkowski, R., Skladnik-Sadowska, E., & Zebrowski, J. (2013). Status of Plasma-Focus research in Poland. In Proceedings of the International Conference PLASMA-2013, 2–6 September 2013 (T10). Warsaw, Poland.
• 2. Skladnik-Sadowska, E., Kwiatkowski, R., Malinowski, K., Sadowski, M. J., Kubkowska, M., Paduch, M., Scholz, M., & Zielinska, E. (2012). Optical emission spectroscopy of pulsed plasma streams emitted from a modified PF-1000 facility. Problems of Atomic Science and Technology, Seria: Plasma Phys., 82(6), 246–248.
• 3. Skladnik-Sadowska, E., Kwiatkowski, R., Malinowski, K., Sadowski, M. J., Żebrowski, J., Kubkowska, M., Paduch, M., Scholz, M., Gribkov, V. A., Garkusha, I. E., Ladygina, M. S., & Marchenko, A. K. (2013). Optical emission spectroscopy of free-propagating plasma streams and plasma produced during their interactions with solid targets. Problems of Atomic Science and Technology, Seria: Plasma Phys., 83(1), 279–283.
• 4. Kubkowska, M., Skladnik-Sadowska, E., Kwiatkowski, R., Malinowski, K., Kowalska-Strzęciwilk, E., Paduch, M., Sadowski, M. J., Pisarczyk, T., Chodukowski, T., Kalinowska, Z., Zielinska, E., & Scholz, M. (2014). Investigation of interactions of intense plasma streams with tungsten and CFC targets in the PF-1000 facility. Phys. Scripta, T161, 014038(5pp.). DOI: 10.1088/0031-8949/2014/T161/014038.
• 5. Jakubowska, K., Kubkowska, M., Skladnik-Sadowska, E., Malinowski, K., Marchenko, A. K., Paduch, M., Sadowski, M. J., & Scholz, M. (2011). Optical emission spectroscopy of plasma streams in PF-1000 experiments. Nukleonika, 56(2), 125–127.
• 6. Kubes, P., & Paduch, M., Cikhardt, J., Kortanek, J., Batobolotova, B., Rezac, K., Klir, D., Kravarik, J., Surala, W., Zielinska, E., Scholz, M., Karpinski, L., & Sadowski, M. J. (2014). Neutron production from puffing deuterium in plasma focus device. Phys. Plasmas, 21, 082706.
• 7. Griem, H. R. (1964). Plasma spectroscopy. New York: McGraw Hill.
• 8. Kepple, P., & Griem, H. R. (1968). Improved stark profi le calculations for the hydrogen lines H, H, H, and H. Phys. Rev., 176(1), 317–325. DOI: 10.1103/ PhysRev.173.317.
• 9. Griem, H. R. (1974). Spectral line broadening by plasmas. New York: Academic Press.
• 10. Scholz, M., Karpinski, L., Paduch, M., Pisarczyk, T., Zielinska, E., Chodukowski, T., Sadowski, M. J., Składnik-Sadowska, E., Czaus, K., Kwiatkowski, R., Malinowski, K., Krauz, S., & Mitrovanov, K. (2010). MJ Plasma-Focus diagnostic systems. In Proceedings of the International Conference Plasma Diagnostics, 12–16 April 2010. Pont-a-Mousson, France. (Invited).
• 11. Skladnik-Sadowska, E., Malinowski, K., Sadowski, M. J., Kubkowska, M., Jakubowska, K., Paduch, M., Scholz, M., Garkusha, I. E., Ladygina, M. S., & Tereshin, V. I. (2010). Optical spectroscopy of free-propagating plasma and its interaction with tungsten targets in PF-1000 facility. Contr. Plasma Phys., 51(2/3), 288–292. DOI: 10.1002/ctpp.201000046.