Characteristics of a heavy ion track in metals and radiation-acoustic effects

On the basis of track energy characteristics (area of increased temperature near the charged particle trajectory) elastic wave excitation process is investigated. Possibility of material brittle fracture under dynamic stresses and phase transition effect on mechanical effects near particle tracks are discussed. It is shown that acoustic pulse excited by radiation particles stimulating reconstruction of the material crystal structure may exceed the values predicted by the linear thermoacoustic theory. 7 refs.; 1 tab