NUKLEONIKA 2012, 57(2):189-192



Pavel Kubeš1, Daniel Klír1, Karel Rezac1, Marian Paduch2, Tadeusz Pisarczyk2,
Marek Scholz2, Tomasz Chodukowski2, Zofia Kalinowska2, Jiří Hitschfel1, Jiří Kortanek1,
Josef Kravárik1, Irena Ivanova-Stanik2, Barbara Bienkowska1, Leslaw Karpinski1,
Ewa Zielinska1, Marek J. Sadowski2,3, Krzysztof Tomaszewski4

1 Czech Technical University (CVUT),
2 Technicka Str., 166-27 Prague 6, Czech Republic

2 Institute of Plasma Physics and Laser Microfusion, 23 Hery Str., 01-497 Warsaw, Poland
3 National Centre for Nuclear Research (NCBJ),
7 Andrzeja Sołtana Str., 05-400 Otwock/Świerk, Poland

3 ACS, 23 Hery Str., 01-497 Warsaw, Poland

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.

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