ABSTRACT

4.1. A MODEL OF RADIATION-ACOUSTIC EFFECTS

A micrononhomogeneous medium is a composite material consisting of a homogeneous matrix (binding) in which insertions are distributed randomly over the volume and directed isotropically. It is also assumed that the specific size d of insertions is small compared with the range, L, of primary radiation particles in the insertion material (d ≪ L) and with the size R of the radiation-matter interaction zone (d ≪ R). Moreover, we assume that the density, n, of the number of insertions in the medium, is sufficiently high, so at any time corresponding to an acoustic signal coming from the interaction zone to the detector, the measured amplitude is a superposition of signals which come from a set of insertions (the condition of temporal overlapping of signals from microradiators).