Title :
Transformation of the Pinched Column at a Period of the Neutron Production
Author :
Kubes, Pavel ; Paduch, Marian ; Pisarczyk, Tadeusz ; Scholz, Marek ; Klir, Daniel ; Kravarik, Jozef ; Rezac, Karel ; Chodukowski, Tomasz ; Ivanova-Stanik, Irena ; Karpinski, Leslaw ; Zielinska, Eva ; Tomaszewski, Krzysztof ; Sadowski, Marek Jan
Author_Institution :
Fac. of Electr. Eng., Czech Tech. Univ. in Prague, Prague, Czech Republic
fDate :
4/1/2010 12:00:00 AM
Abstract :
A PF-1000 device working with a deuterium gas filling and a current on the order of 1 MA was used for studies of the pinch-column structure by means of a laser interferometric system at a period of hard X-ray (HXR) and neutron production. Three different phases of the plasma-column evolution, corresponding to the intense HXR and neutron emission, were studied for discharges with neutron yields equal to about 1011 neutrons/shot. First, the start of the stagnation of a pinch column was considered; as the second phase, the development and disruption of constrictions was studied, and as the third phase, the decrease of the plasma density in a part of the plasma column during its stagnation was considered. Regions of the probable electron and ion acceleration and possible neutron production were identified.
Keywords :
Z pinch; deuterium; light interferometry; neutron production; plasma X-ray sources; plasma density; plasma diagnostics; plasma focus; D; PF-1000 device; deuterium gas filling; discharges; electron acceleration; hard X-ray production; ion acceleration; laser interferometric system; neutron emission; neutron production; pinched column transformation; plasma column stagnation; plasma density; plasma-column evolution; Neutron sources; plasma focus (PF); plasma pinch;
Journal_Title :
Plasma Science, IEEE Transactions on
DOI :
10.1109/TPS.2009.2036623
