EFFECT OF THE GRADIENT OF A STRONG ELECTROMAGNETIC RAY ON ELECTRONS AND ATOMS

The transverse inhomogeneity of a strong electromagnetic ray can exert a strong effect on electrons and atoms of a medium. If the wave frequency exceeds the proper frequency of the electron; oscillations (in a plasma or in atoms), the electrons or atoms will be forced out of the ray field. At sub-resonance frequencies, the particles will be pulled in, the force being especially large at resonance. A rarefication or compression may occur in the ray or in the focus of the radiation; the pressure gradient near the hole connecting the evacuated vessel with the atmosphere may be maintained, and a channel conducting charged partlcles may be created in the medium. A strong thermal, ionizing, and separating effect oi the ray on the medium can be used for setting up wave guide conditions of propagation and for eliminating divergency of the ray (selffocusing). Hollow rays may ensure directed flow and ejection of the plasma along the ray axis for plasma transport and creation of plasma current conductors. The possibilities of acceleration and heating of plasma electrons by a modulated ray are indicated. (auth)