NUKLEONIKA 2002, 47(4):155-162

 


INFLUENCE OF POWERFUL PULSES OF HYDROGEN PLASMA UPON MATERIALS IN PF-1000 DEVICE



Valeri N. Pimenov1, Vladimir A. Gribkov2, Alexander V. Doubrovsky3, Franco Mezzetti4, Marek Scholz2, Yulo E. Ugaste5, Elena V. Dyomina1, Lev I. Ivanov1, Sergei A. Maslyaev1, Ryszard Miklaszewski2, Michal Borowiecki2, Paola De Chiara4, Linda Pizzo4,
Adam Szydlowski6, Igor V. Volobuev3

1 A. A. Baikov Institute of Metallurgy and Material Science, RAS,
49 Leninsky Pr., 117334 Moscow, Russia
2 Institute of Plasma Physics and Laser Microfusion, 23 Hery Str. 00-908 Warsaw, Poland
3 P. N. Lebedev Physical Institute, RAS, 53 Leninsky Pr., 117924 Moscow, Russia
4 University of Ferrara, INFM, 12 Via Paradiso, I-44100 Ferrara, Italy
5 Pedagogical University of Tallinn, 25 Narva Road, 10120 Tallinn, Estonia
6 The Andrzej Soltan Institute of Nuclear Studies, 05-400 Otwock-Swierk, Poland

The results of experimental investigations of powerful hydrogen plasma jets and fast ion beams interaction with various materials (austenitic chromium-manganese steels, pure vanadium, tungsten, graphite, copper, and their alloys: Cu-4 mass% Ni and Cu-10 mass% Ga) are presented. The materials were placed on the discharge axis of the PF-1000 device and irradiated with fluxes of fast ions (of energy in the range from tens keV up to several MeV) and with plasma streams (of power flux density q~(108-109) W/cm2). It was found that the fast ions and plasma streams caused different damages to the aforementioned materials. A diverse character of the damages to the individual investigated material was revealed. Some peculiarities of the process as well as the correlation between the surface density of the “macroscopic” structural defects (blisters and craters) and the fluence of the fast ions implanted in the specimen are discussed.

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