[en] Radiation resistance of magnetoacoustic resonators from hematite (a-Fe₂O₃) is studied. It is shown that the resonator being irradiated with the fast neutron fluence up to 2x10¹⁸ n/cm² (flux density (5.6+-0.6)10¹⁴ n/cm²xs) keeps within 0.1% accuracy of its own frequency and the range of returning under magnetic field action, while the amplitude of magnetization modes reduces to 50%. The latter is supposed to occur due to accumulation of radiation defects then condensed into large acoustic inhomogeneities. Firm frequency characteristics allow one to conclude that the apparatus based on magnetoacoustic resonators from hematite with frequency representation of information keeps stable operation in neutron fields, fast neutron being 5.6x10¹⁴ n/cm²xs, under irradiation dose up to 2x10¹⁸ n/cm²