Fig. 1. (a) Signals of the total discharge current, the current through the foil, and the x-ray pulse in the experiment on the BIN generator. (b) Signals of the total discharge current (the current through the foil) and UV radiation (E > 10 eV) from the exploded foil in experiments on the KING generator.

Fig. 2. (a) Schematic of experiments to study the structure of an exploded foil on the BIN generator. (b) Schematic of experiments to study UV radiation from an exploded foil on the KING generator. (c) Schematic of experiments to image a test object in UV radiation from an exploded foil on the KING generator. Key: (1) cathode plate; (2) return current post; (3) anode plate; (4) hybrid X-pinch; (5) thin foil; (6) filter; (7) imaging plate; (8) PCD; (9) pinhole camera; (10) MCP; (11) test object (a mesh with a wire diameter of 200 μm). y and x are the distances determining the magnifications in each scheme: x = 45 cm, y = 305 cm; y′ = 57 cm, x′ = 68 cm; y″ = 57 cm, x″ = 35 mm.

Fig. 3. Photographs of the structure of Al foil after laser exposure, as a result of which depressions of diameter 50 μm and depth 2 μm are formed, applied with a scale of about 100 μm.

Fig. 4. (a) Radiograph of an exploded Al foil with sections 1–5 on which various modifications had been made: (1) a section with grooves of width 50 μm, made with a 100 μm scale (the distance between the centers of the grooves) parallel to the foil’s initial structure in the X direction; (2) and (4) sections of exploded foil without modification; (3) a section with grooves of width 50 μm, made through 100 μm perpendicular to the foil’s initial structure in the Y direction; (5) a section with modification by pits of diameter 50 μm and scales along the Y and X axes of 50 μm. The foil’s initial structure is located in the X direction, i.e., parallel to the current. (b) Transmission curve for all sections of the exploded foil.

Fig. 5. Radiograph of an exploded Al foil with sections 1–3 on which modifications had been made in the form of pits of diameter 50 μm with various scales (average distance between pits) along the Y and X axes: (1) 50 μm (Y), 100 μm (X); (2) 100 μm (Y), 50 μm (X); (3) 100 μm (Y), 100 μm (X); (4) foil without modification. (b) Transmission curve for sections 1–4.

Fig. 6. (a) Photograph of pits taken with ×15 magnification using an optical microscope. (b) Radiograph of an exploded Al foil with sections 1, 3, and 5 on which a modification had been made in the form of pits of diameter 50 μm with various scales (average distance between pits) along the Y and X axes: (1) 50 μm (Y), 100 μm (X); (3) 100 μm (Y), 50 μm (X); (5) 100 μm (Y), 100 μm (X). Sections 2 and 4 are without modification. The scale of instabilities is 90 μm in section 1, 45 µm in section 3, and 90 µm in section 5. (c) Transmission curve for sections 1–5.

Fig. 7. (a) Pinhole images of exploded 4 μm thick Al foil without modification obtained in the UV range with radiation energy above 40 eV with a time resolution of 5 ns. The instants at the beginning of each frame are indicated at the top. (b) Intensity curves at the locations marked by lines 1–3 in (a).

Fig. 8. (a) Pinhole images of exploded Al foil with surface modification by pits of diameter 50 μm and scale (distance between pit centers) of 100 μm along both the X and Y axes. The images were recorded in the UV range with a time resolution of 5 ns. The instants of the beginning of each frame are indicated at the top. The direction of the current through the foil is shown by the arrow. (b) Intensity curves at the locations marked by lines 1–3 in (a).

Fig. 9. Pinhole images of a mesh with a wire diameter of 200 μm, obtained in the UV radiation from an exploded Al foil: (a) foil without modification (b) foil with modification of the entire surface by the application of pits of diameter 50 μm and scale (distance between pit centers) of 100 μm along both the X and Y axes. The mesh image was obtained with 1.6× magnification. The direction of the current through the foil is shown by the arrows. The moments of the beginning of the frame are indicated at the top.