FIELD: medical engineering. SUBSTANCE: device has radiation source, driving unit for moving the source unit along the rotation and eccentricity axes and control unit. The control unit has programming unit sinusoid-cosinusoid rotating transformer, tachogenerator unit, transformer unit, voltage control unit and amplifiers. EFFECT: uniform dose field; high dose gradient on the boundary; excluded risk of very low or very high dose applied to the neighboring fields. 2 dwg
