The numerous experiments in which the features of Low-Energy Nuclear Reactions (LENR) were researched show that the emergence of new chemical elements in the reactions are accompanied by a radiation that has been detected on nuclear photographic plates located outside of the work chamber. Besides interactions between the radiation with various materials and absence of shielding by electromagnetic and molecular screens, it is characterized by other properties as well: nonmagnetic and nonelectric nature, the accompaniment by electromagnetic radiation, magnetization of nonmagnetic materials, etc. However, the nature of the radiation is left unknown, therefore this radiation is referred to as “strange” radiation. With the aim of determining the physical nature of “strange” radiation the properties of such process as spin supercurrent are analyzed in this work. The spin supercurrent emerges between objects having precessing spin and tends to equalize the respective characteristics of the spins (angles of precession and angles of deflection); that is, it transforms the angular momentum associated with spins. The investigations of spin supercurrent were conducted from 1976; in 2008 Yu. Bunkov, V. Dmitriev and I. Fomin, were awarded the Fritz London Memorial Prize for the studies of spin supercurrents in superfluid ³Не-B. The comparison of the properties of spin supercurrent with properties of “strange” radiation allows us to conclude the following: the spin supercurrent may be the physical process which accompanies Low-Energy Nuclear Reactions and called as “strange” radiation. From conducted investigations it follows that spin supercurrent does not only accompany Low-Energy Nuclear Reactions but it may stimulate the accomplishment of these reactions as well.

strange radiation, spin supercurrent, low-energy nuclear reactions, spin, virtual photons