Temat: ion - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

Skocz do pozycji: 2.

Tytuł:: Study of deuteron motion in a filamentary Plasma-Focus pinch column for different configurations of filaments
Autorzy:: Pasternak, A.
Sadowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/146934.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: deuterons
filamentary pinch
ion trajectories
numerical modeling
plasma focus
Opis:: The motion of deuterons in dynamical filamentary configurations of a PF pinch column has been studied with a three-dimensional numerical model. Apart from magnetic fields, the motion-induced electrical fields as well as ion-ion and ion-electron collisions have been included in the equations of deuteron motion. Calculations were performed for different numbers of filaments and its spatial distributions under different initial conditions. Energy of ions was assumed to be from 10 keV up to 200 keV. The results obtained have shown many possible modes of ion motion and have demonstrated that the current filaments can cause peculiarities observed in the angular distribution of deuterons emitted from the PF pinch column.
Źródło:: Nukleonika; 2001, 46, suppl. 1; 29-32
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Surface modification of plasma-sprayed alumina deposits by high-energy ion beams
Autorzy:: Sadowski, M.
Langner, J.
Stanisławski, J.
Matejícek, J.
Kolman, B.
Chráska, P.
Powiązania:: https://bibliotekanauki.pl/articles/146704.pdf
Data publikacji:: 2000
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: alumina coatings
plasma-ion streams
plasma spraying
surface modification
Opis:: This paper reports on characteristics of alumina-type coatings deposited on steel substrates and treated with pulsed plasma streams containing high-energy ion beams (N, Ar, and Ti+N). Originally matted surfaces of the ceramic layers, which were created by plasma spraying of gray alumina, were changed into shiny ones, and splat boundaries disappeared due to the melting of a thin surface layer. The thickness of this modified layer did not exceed 1 žm. A higher content of Ti was found on the surfaces of the Ti- and N-treated samples only.
Źródło:: Nukleonika; 2000, 45, 3; 199-202
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Comparison of characteristics of pulsed ion beams emitted from different small PF devices
Autorzy:: Sadowski, M.
Skladnik-Sadowska, E.
Baranowski, J.
Zebrowski, J.
Kelly, H.
Lepone, A.
Marquez, A.
Milanese, M.
Moroso, R.
Pouzo, J.
Powiązania:: https://bibliotekanauki.pl/articles/146809.pdf
Data publikacji:: 2000
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: Faraday cups
ion beams
plasma focus
Thomson analyzers
track detectors
Opis:: The paper concerns studies of pulsed ion beams emitted from different small-energy (5–50 kJ) devices of the plasma focus (PF) type. Emission characteristics of the ion beams as measured with nuclear track detectors (NTDs), Faraday-type collectors (FC), and Thomson-type analyzers, are summarized. Common features of the ion emission are considered and some differences are discussed.
Źródło:: Nukleonika; 2000, 45, 3; 179-184
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 5.

Tytuł:: Studies of Plasma-Focus discharges within the PF-360 facility equipped with a planar D2O-ice target
Autorzy:: Zebrowski, J.
Baranowski, J.
Jakubowski, L.
Sadowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/147057.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: cryogenic target
ion beams
neutron yield
plasma focus
X-rays
Opis:: The paper reports on investigations of dense magnetized plasmas produced within a modernized PF-360 facility, which was operated with an additional planar cryogenic target placed in the front of the electrode outlet and covered with D2O-ice layers. The main aim of these studies was to overcome the neutron saturation effect and to increase the maximum neutron yield from PF discharges by using fast deuteron beams. Such beams are usually emitted from a pinch region and can produce fast neutrons from D-D reactions during their interactions with the additional target.
Źródło:: Nukleonika; 2001, 46, suppl. 1; 65-68
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 6.

Tytuł:: Neutron and fast ion emission from PF-1000 facility equipped with new large electrodes
Autorzy:: Szydlowski, M.
Scholz, M.
Karpinski, L.
Sadowski, M.
Tomaszewski, K.
Paduch, M.
Powiązania:: https://bibliotekanauki.pl/articles/147301.pdf
Data publikacji:: 2001
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: fast ion beam
neutron emission anisotropy
neutron yield
plasma focus
Opis:: A PF-1000 facility was operated for the first time at an energy level of up to 1 MJ. The maximal emission of 2×1011 neutrons/shot was registered. Relatively low emission anisotropy was observed. Fast ion beams were generated only from shots performed at a low filling pressure (1-2 Torr).
Źródło:: Nukleonika; 2001, 46, suppl. 1; 61-64
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

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