X-ray Filter Obtained by Magnetron Sputtering on Light-melting Polymer Substrate

The work is devoted to the development of a multi-step X-ray filter on the basis of Al layers formed by magnetron sputtering on a thin polypropylene film. The conditions of deposition of Al layers up to 3 microns thick providing low-temperature effects on the light-melting 6 μm thick substrate have been found. Transmission of filter was tested by X-pinch radiation in the range of hv > 0.8 keV, created with a compact pulsed high-current generator XPG-3 (200 kA, 150 ns), which was designed and constructed at the Institute of High Current Electronics.