An electromagnetic acoustic shock wave generator with a parabolic reflector and a band foil inductor as a radiating element inside a metallic cylindrical shell is described. The electromechanical model calculated allows for evaluating the optimal number of turns (layers) of the band coil depending on the geometric parameters of the radiator. A model generator specimen ensured the stepwise variation of the acoustic pulse duration from 1 to 3μs at a pressure amplitude of ～100 MPa at the focus. The possibility of generating two successive acoustic pulses of different durations with a controlled time delay between them is considered. The device can be applied in medical facilities for destruction of kidney stones and gallstones, and the high stability of the parameters of acoustic pulses may be of interest in studying the biology of cell cultures (sonoporation), acoustic cavitation, etc.
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