Research on interactions of plasma streams with CFC targets in the Rod Plasma Injector facility

• Autorzy: Zaloga D. R. , Kwiatkowski R. , Skladnik-Sadowska E. , Sadowski M. J. , Nowakowska-Langier K.

Identyfikatory

DOI

10.1515/nuka-2016-0030

• Konferencja: PLASMA-2015 International Conference on Research and Applications of Plasmas (7-11 September 2015 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

This paper present results of optical spectroscopy studies of interactions of intense plasma streams with a solid target made of carbon fibre composite (CFC). The experiments were carried out within the Rod Plasma Injector (RPI) IBIS facility. The optical measurements were performed first for a freely propagating plasma stream in order to determine the optimal operational parameters of this facility. Optical emission spectra (OES) were recorded for different operational modes of the RPI IBIS device, and spectral lines were identified originating from the working gas (deuterium) as well as some lines from the electrode material (molybdenum). Subsequently, optical measurements of plasma interacting with the CFC target were performed. In the optical spectra recorded with the irradiated CFC samples, in addition to deuterium and molybdenum lines, many carbon lines, which enabled to estimate erosion of the investigated targets, were recorded. In order to study changes in the irradiated CFC samples, their surfaces were analysed (before and after several plasma discharges) by means of scanning electron microscope (SEM) and energy dispersive spectroscopy (EDS) techniques. The analysis of the obtained SEM images showed that the plasma irradiation induces noticeable changes in the surface morphology, for example vaporisation of some carbon fi bres and formation of microcracks. The obtained EDS images showed that upon the irradiated target surface, some impurity ions are also deposited, particularly molybdenum ions from the applied electrodes.

Słowa kluczowe

EN

CFC target; optical spectroscopy; plasma streams; plasma-target interaction

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2016
• Tom: Vol. 61, No. 2
• Strony: 179--183
• 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

Kwiatkowski 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

Sadowski M. J.

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

autor

Nowakowska-Langier K.

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

Bibliografia

• 1. Ladygina, M. S., Garkusha, I. E., Marchenko, A. K., Makhlai, V. A., Sadowski, M. J., Skladnik-Sadowska, E., Aksenov, N. N., & Tereshin, V. I. (2011). Spectroscopy of plasma surface interaction in experiments simulating ITER transient events. Fusion Sci. Technol.,60(1T), 27–33.
• 2. Sadowski, M. J., Gribkov, V. A., Kubes, P., Malinowski, K., Skladnik-Sadowska, E., Scholz, M., Tsarenko,A., & Zebrowski, J. (2006). Application of intense plasma-ion streams emitted from powerful PF-type discharges for material engineering. Phys. Scr., T123, 66–78.
• 3. Linke, J., Escourbiac, F., Mazul, I. V., Nygren, R., Rödig, M., Schlosser, J., & Suzuki, S. (2007). Highheat flux testing of plasma facing materials and components – Status and perspectives for ITER related activities. J. Nucl. Mater., 367/370, 1422–1431.
• 4. Hirai, T., Pintsuk, G., Linke, J., & Batilliot, M. (2009). Cracking failure study of ITER-reference tungsten grade under single pulse thermal shock loads at elevated temperatures. J. Nucl. Mater., 390/391, 751–754.
• 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 nitride, C2C ceramics, Al2O3 and carbon-fibre composites using a PF-1000 plasma-focus device. Phys. Scr., 83(4), 045606.
• 6. Garkusha, E., Makhlai, V. A., Aksenov, N. N., Bazylev, B., Landman, I., Sadowski, M., & Skladnik-Sadowska, E. (2014). Tungsten melt losses under QSPA KH-50 plasma exposures simulating ITER EIMs and disruptions. Fusion Sci. Technol., 65(2), 186–193.
• 7. Langner, J., Piekoszewski, J., Werner, Z., Tereshin, V. I., Chebotarev, V. V., Garkusha, I., Waliś, L., Sartowska, B., Starosta, W., Szymczyk, W., Kopcewicz, M., & Grabias, A. (2000). Surface modification of constructional steels by irradiation with high intensity pulsed nitrogen plasma beams. Surf. Coat. Technol., 128/129, 105–111.
• 8. Skladnik-Sadowska, E., Czaus, K., Malinowski, K., Sadowski, M. J., Nowakowska-Langier, K., Ladygina, M. S., & Garkusha, I. E. (2012). Optical emission spectroscopy of plasma produced from tungsten target irradiated within RPI-IBIS. Nukleonika, 57(2), 193–196.
• 9. Malinowski, K., Skladnik-Sadowska, E., Sadowski, M. J., & Czaus, K. (2006). Corpuscular diagnostics of deuterium-plasma streams from RPI-IBIS discharges. Czech. J. Phys., 56(Suppl. B), 309–314.
• 10. Skladnik-Sadowska, E., Kwiatkowski, R., Malinowski, K., Sadowski, M. J., Żebrowski, J., Kubkowska, M., Paduch, M., Scholz, M., Gribkov, V., Garkusha, I., Ladygina, M., & Marchenko, A. K. (2013). Optical emission spectroscopy of free-propagating plasma streams and plasma produced during their interactions with solid targets. Probl. Atom. Sci. Techn. Ser. Plasma Phys., 83(1), 279–283.
• 11. Griem, H. R. (1964). Plasma spectroscopy. New York: McGraw Hill.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.