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Interferometry of the plasma focus equipped with forehead cathode

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.

Nukleonika

2012

Vol. 57, No. 2

189-192

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.