A project of a hadron identifier for secondary beams of Eh ≥ 0.25 Tev is proposed. The XTR quanta detection is carried out due to their Compton scattering in the radiator made of a light substance. So the charged particles do not pass through the quantum detector and do not produce a background due to ionization losses. The lateral XTR quanta are registered by gaseous-xenon detector made in the form of a cylinder with almost 4π geometry. The Monte-Carlo calculation of the beam identifier has been carried out for a LiH radiator with the number of 0.05 mm-thick layers of 3360 at b = 1 mm air gaps.