MEGAJOULE SCALE PLASMA-FOCUS AS EFFICIENT X-RAY SOURCE

Our experiments have established that a plasma focus (PF) with Filippo v type electrodes can convert 10% of the capacitor bank energy (for W = 0.9 MJ) into K-shell lines of Ne radiation. This result when compare d to the data obtained for a PF operated at W less than or equal to 5 kJ indicates a Y-x similar to I-p(3.5-4) radiation scaling(I-p is the pinch current) and is in conformity to the resistive heating mechanism of Ne-plasma. Measurements of the X-ray energy flux were carried out with specially developed sensors, based on the explosive evaporation o f the filtered targets.