Results of experimental studies on sound compressive waves generated by pulsed proton‐carbon beams with current densities ranging from 100 A/cm2 to 1.6kA/cm2 in thick metallic targets are presented. Data on the duration of compressive stress at the front of the sound beam‐generated compressive wave in a metal are obtained. The factors changing the efficiency of sound generation in metal due to the gas‐kinetic recoil pulse of the gas‐plasma cloud extending away from the irradiated surface are discussed.

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