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Wyszukujesz frazę "ion irradiation" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
On the nature of changes in the optical characterization produced in sapphire on its irradiation with a pulsed powerful stream of hydrogen ions
Autorzy:
Gribkov, V.
Ivanov, L.
Maslyaev, S.
Pimenov, V.
Sadowski, M.
Skladnik-Sadowska, E.
Banaszak, A.
Kopeć, G.
Cheblukov, Y.
Kozodaev, M. A.
Suvorov, A. L.
Smirnov, I. S.
Powiązania:
https://bibliotekanauki.pl/articles/147991.pdf
Data publikacji:
2004
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
optical characteristics
irradiation
fast ion stream
morphology
Opis:
Changes in the optical characteristics in synthetic sapphire specimens produced by microsecond pulse irradiation with a stream of hydrogen ions of energies ranging up to tens keV have been observed. Data on decrease in the optical reflection, measured within the wavelength range of 200 900 nm, are presented. This characterization is compared with the data received by optical and atomic force microscopy as well as by lattice structure analysis performed with X-rays. The measurements indicate that the changes of optical parameters are not a consequence of absorption increase and/or sapphire decomposition. They result from modifications of the morphology and structure of surface layer of the sapphire samples, induced by irradiation.
Źródło:
Nukleonika; 2004, 49, 2; 43-49
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of powerful pulses of hydrogen plasma upon materials in PF-1000 device
Autorzy:
Pimenov, V.
Gribkov, V.
Dubrovsky, A.
Mezzetti, F.
Scholz, M.
Ugaste, U.
Dyomina, E.
Ivanov, L.
Maslyaev, S.
Miklaszewski, R.
Borowiecki, M.
De Chiara, P.
Pizzo, L.
Szydlowski, A.
Volobuev, I. V.
Powiązania:
https://bibliotekanauki.pl/articles/147096.pdf
Data publikacji:
2002
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dense plasma focus (DPF)
ion beam
irradiation
plasma jet
surface damage
test specimen
Opis:
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.
Źródło:
Nukleonika; 2002, 47, 4; 155-162
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dense magnetized plasma and its applications: review of the 3-year activity of the IAEA Co-ordinated Research Programme
Autorzy:
Gribkov, V.
Malaquias, A.
Powiązania:
https://bibliotekanauki.pl/articles/147438.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
dense magnetized plasma
ion beams
plasma beams
neutron beams
X-ray beams
irradiation
high energy density
volumetric interaction
Opis:
A review of the results received in the course of fulfillment of the International Atomic Energy Agency Co-ordinated Research Project “Dense Magnetized Plasma” for the last 3 years is presented. Niche of the plasma type within the plasma physics field is outlined. Efforts of the CRP participants concentrated on design and operation of new Dense Magnetized Plasma devices are described. All of them designed for plasma heating and for other applications mainly based on the interaction of radiations generated by the devices with different objects. Materials exploitable, diagnostics of the interaction processes, as well as analytical equipment used by the participants to process the irradiated targets are described. Works developed in the frame of the CRP are covered thermonuclear fusion applications, fundamental plasma physics and material science issues, medicine, biology, and some other spheres. New data on the interaction of the radiations generated in this apparatus with various materials are given. E.g. it was found that the necessary dose producing activation/inactivation of enzymes can be much lower if used at a high-power flux density in comparison with those received with classical sources. All these experiments are discussed in the framework of pulsed radiation chemistry in its perfect sense thereto the criteria are formulated. New foreseen applications of DMP devices mainly based on neutron radiation are proposed and discussed.
Źródło:
Nukleonika; 2006, 51, 1; 5-13
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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