Elastic wave generation in solid target is investigated in case of normal incidence of a uniform pulsed beam of nonrelativistic ions on flat surface of the target. It is shown that generated acoustic stress is the result of cooperative action of three mechanisms, i.e. the thermoelastic mechanism, the dynamic mechanism caused by momentum transfer, and the deformational one connected with nonthermal expansion of a target material. The equations characterizing elastic pulses generated in the

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... ork of each of above-listed mechanisms are derived and their solutions for typical parameters of the ion beam are obtained. The terms of domination of one or another mechanism are formulated. KEYWORDS: pulsed ion beam, solid target, acoustic waves, sound generation mechanisms, ion beam dosimetry .. , .. «-»