“…Under ultrasonic excitation, a set of satellites related to the inelastic scattering processes with wavevector transfer, H + px (p = +1, -t-2 .... ), appears in the diffraction spectrum, each satellite having a width, Gp, proportional to the Bessel function of the pth order, Jp (HW), and the height, Ip < 1, reduced due to the X-ray absorption on the characteristic length, Lp (Polikarpov, 1996): L, (10) Lp _ [~(HW) + $2] 1/2" Excitation of satellites leads to considerable modifications in spectrum width and integrated intensity. Detailed theoretical analysis (Polikarpov, 1996;Polikarpov & Zolotoyabko, 1997) allowed the derivation of expressions describing the diffraction spectrum and integrated diffraction intensity in the form of a series over parameter p. Generally, these expressions may be used for computer simulations and selected examples of such calculations are given in Fig. 7.…”