FIELD: cooling any bodies in solid, liquid and gaseous state. SUBSTANCE: thermal energy is removed from body only (or mainly) by directive radiation. To this end, body to be cooled is isolated from surrounding medium by placing it in heat-insulated volume, for example in Dewar flask. Electromagnetic energy of thermal radiation concentrated in this heat-insulated volume is radiated towards cold sections of space within temperature range of relict radiation equal to 3 K within wave band corresponding to maximum Planck's spectral density by means of high-directional antenna system 8. In this process temperature of body is reduced as compared with initial cryogenic temperature of body which is equilibrium relative to antenna temperature depending on selected direction of radiation into space. EFFECT: enhanced efficiency. 3 cl, 1 dwg
