[en] In thermonuclear synthesis reactions different secondary particles (neutrons, protons, alpha-particles, etc) are generating. Neutrons generation in nuclear reaction process have high penetration and activation ability and they are interacting with construction materials such as chromium, nickel, vandium, molybdenum, iron, tungsten, titanium and zirconium and forming in them radiation defects. At the stage of model formation for elementary act calculation it is necessary to carrying out of different reaction channels description and energy spectra for primary knock-out atoms in an analytical function form. In the work approximation of experimental data in the particular for ⁹⁶Mo and ⁹⁸Mo was carried out with help of computer code 'STATISTICA'