Synchrotron radiation and spin light

Spin light, or μ-radiation, is a new phenomenon of nature, which observation has become possible due to development of technology of the elementary particles acceleration. In this work the description of the Novosibirsk experiment, where the spin dependence of synchrotron radiation was observed for the first time, is given. It is shown, that the spin light is decomposed to different on principle μL- and μTh-radiation types. μL-radiation is conditioned by Larmor precision of the intrinsic magnetic moment of the electron (and its anomalous part), while μTh-radiation is connected with Thomas precession of the electron spin and has pure kinematic origin. In the relativistic quantum theory of radiation based on the Dirac equation. μL-radiation and μTh-radiation do not differ one from another and from the other quantum effects of electron radiation. Separate consideration is possible only in Jacksonʹs relativistic semiclassical radiation theory used in the given work.