Autor: Bieńkowska, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Interferometry of the plasma focus equipped with forehead cathode
Autorzy:: Kubeš, P.
Klír, D.
Rezac, K.
Paduch, M.
Pisarczyk, T.
Scholz, M.
Chodukowski, T.
Kalinowska, Z.
Hitschfel, J.
Kortanek, J.
Kravárik, J.
Ivanova-Stanik, I.
Bienkowska, B.
Karpinski, L.
Zielinska, E.
Sadowski, M. J.
Tomaszewski, K.
Powiązania:: https://bibliotekanauki.pl/articles/147512.pdf
Data publikacji:: 2012
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: interferometry
neutron diagnostics
plasma focus discharge
Opis:: The PF-1000 plasma-focus facility in Warsaw, equipped with Mather-type coaxial electrodes working with a deuterium filling, was modified by the addition of a cathode disk in front of the anode front-plate at a distance of 3 cm. The plasma was diagnosed with temporal resolved interferometry and neutron diagnostics. The modified electrode configuration showed an increase of the current in the pinch phase and a decrease of the total neutron yield. The lower total neutron yield is caused by a lower energy of deuterons producing the observed neutrons and by a decrease of the velocity of transformations of the structures in the pinch column.
Źródło:: Nukleonika; 2012, 57, 2; 189-192
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Status of a mega-joule scale Plasma-Focus experiments
Autorzy:: Scholz, M.
Bieńkowska, B.
Borowiecki, M.
Ivanova-Stanik, I.
Karpiński, L.
Stępniewski, W.
Paduch, M.
Tomaszewski, K.
Sadowski, M.
Szydłowski, A.
Kubeš, P.
Kravárik, J.
Powiązania:: https://bibliotekanauki.pl/articles/147496.pdf
Data publikacji:: 2006
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: plasma focus
dense magnetized plasma
neutron yield
Opis:: This paper presents results of the recent plasma-focus (PF) experiments carried out with PF facilities, which was operated at energies ranging from 0.5 MJ to about 1 MJ. Particular attention has been paid to pinch evolution, the emission of pulsed X-ray, fast electron beams, and fusion produced neutrons. Some theoretical models of the initial breakdown, which occurs at the insulator surface, are compared. It is pointed out that modeling of the breakdown is sensitive to kinetics of ionization processes and transport coefficients. Progress in experimental studies of the axial acceleration phase is unsatisfactory. Important experimental data have been collected, but new measurements are still needed. For the radial collapse phase, it was shown that the MHD modeling is efficient until the maximum compression, but plasma instabilities require more sophisticated approaches. The pinch phase was investigated by means of different diagnostics. Fusion neutron yields were measured in different experiments, but some discrepancies in scaling must still be explained. The conclusions concern directions for further studies and optimization of large-scale high-current PF facilities.
Źródło:: Nukleonika; 2006, 51, 1; 79-84
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

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