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2015 | 60 | 2 | 293-296
Tytuł artykułu

Study of tungsten surface interaction with plasma streams at DPF-1000U

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this note experimental studies of tungsten (W) samples irradiated by intense plasma-ion streams are reported. Measurements were performed using the modified plasma focus device DPF-1000U equipped with an axial gas-puffing system. The main diagnostic tool was a Mechelle®900 optical spectrometer. The electron density of a freely propagating plasma stream (i.e., the plasma stream observed without any target inside the vacuum chamber) was estimated on the basis of the half-width of the Dβ spectral line, taking into account the linear Stark effect. For a freely propagating plasma stream the maximum electron density amounted to about 1.3 × 1017 cm−3 and was reached during the maximum plasma compression. The plasma electron density depends on the initial conditions of the experiments. It was thus important to determine first the plasma flow characteristics before attempting any target irradiation. These data were needed for comparison with plasma characteristics after an irradiation of the investigated target. In fact, spectroscopic measurements performed during interactions of plasma streams with the investigated W samples showed many WI and WII spectral lines. The surface erosion was determined from mass losses of the irradiated samples. Changes on the surfaces of the irradiated samples were also investigated with an optical microscope and some sputtering and melting zones were observed.
Słowa kluczowe
Wydawca

Czasopismo
Rocznik
Tom
60
Numer
2
Strony
293-296
Opis fizyczny
Daty
wydano
2015-06-01
otrzymano
2014-06-12
zaakceptowano
2015-01-05
online
2015-06-22
Twórcy
  • Institute of Plasma Physics, NSC KIPT, 61-108 Kharkov, Ukraine, Tel.: +380 57 335 6122, Fax: +380 57 335 2664, ladyginams@kipt.kharkov.ua
  • National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland
  • National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland
  • National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland
  • National Centre for Nuclear Research (NCBJ), 7 Andrzeja Soltana Str., 05-400 Otwock/Swierk, Poland and Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland
  • Institute of Plasma Physics, NSC KIPT, 61-108 Kharkov, Ukraine, Tel.: +380 57 335 6122, Fax: +380 57 335 2664
  • Institute of Plasma Physics and Laser Microfusion (IPPLM), 23 Hery Str., 01-497 Warsaw, Poland and A. A. Baikov Institute of Metallurgy and Material Science, 119991 Moscow, Russia
Bibliografia
  • 1. 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 carbon fibre composite targets in the PF-1000 facility. Phys. Scripta, T161, 014038. DOI: 10.1088/0031-8949/2014/T161/014038.[Crossref][WoS]
  • 2. Skladnik-Sadowska, E., Kwiatkowski, R., Malinowski, K., Sadowski, M. J., Gribkov, V. A., Kubkowska, M., Paduch, M., Scholz, M., Zielinska, E., Demina, E. V., Maslyaev, S. A., & Pimenov, V. N. (2014). Research on interactions of intense plasma-ion streams with a SiC target in a modified PF-1000 facility. Phys. Scripta, T161, 014039. DOI: 10.1088/0031-8949/2014/T161/0140039.[Crossref][WoS]
  • 3. Pitts, R. A., Carpentier, S., Escourbiac, F., Hirai, T., Komarov, V., Lisgo, S., Kukushkin, A. S., Loarte, A., Merola, M., Sashala Naik, A., Mitteau, R., Sugihara, M., Bazylev, B., & Stangeby, P. C. (2013). A full tungsten divertor for ITER: Physics issues and design status. J. Nucl. Mater., 438, S48–S56. DOI: 10.1016/j.jnucmat.2013.01.008.[Crossref][WoS]
  • 4. Scholz, M., Drozdowicz, K., Karpinski, L., Krauz, V., Kubes, P., Paduch, M., Pisarczyk, T., Sadowski, M. J., Woznicka, U., Zielinska, E., Czaus, K., Malinowski, K., Skladnik-Sadowska, E., & Zebrowski, J. (2013). Status of Plasma-Focus research in Poland. In Proceedings of International Conference PLASMA-2013, 2–6 September 2013 (T10). Warsaw, Poland.
  • 5. Gribkov, V. A., Tuniz, C., Demina, E. V., Dubrovsky, A. V., Pimenov, V. N., Maslyaev, S. V., Gaffka, R., Gryaznevich, M., Skladnik-Sadowska, E., Sadowski, M. J., Miklaszewski, R., Paduch, M., & Scholz, M. (2011). Experimental studies of radiation resistance of boron nitrate, C2C ceramics Al2O3 and carbon-fiber composites using a PF-1000 plasma-focus device. Phys. Scripta, 83, 045606. DOI: 10.1088/0031-8949/83/04/045606.[Crossref][WoS]
  • 6. Jakubowska, K., Kubkowska, M., Skladnik-Sadowska, E., Malinowski, K., Marchenko, A., Paduch, M., Sadowski, M. J., & Scholz, M. (2011). Optical emission spectroscopy of plasma streams in PF-1000 experiments. Nukleonika, 56(2), 125–129.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_nuka-2015-0048
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