. The experiments have shown that for each generator, it is possible to find a wire material, diameter and length for which the HXP generates an intense single burst of soft x-rays and develops a single hot spot with micron size. However, the physics of the process of single hot spot formation has not been studied in detail. In order to understand the physical processes that occur in the HXPs we are carrying out an in-depth investigation of those processes and comparing them with the physics of standard X pinches (SXP). The early stages of HXP and SXP hot spot formation have been studied on the BIN (250 kA, 100 ns) and XP (400 kA, 100 ns) pulsers. Point-projection x-ray radiography with HXPs as the source of the x-ray radiation was used in most experiments
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