An anomalous effect revealed during the decay of a long-lived plasmoid

One studies an anomalous effect recorded in the course of decay of a long-lived plasmoid (lifetime equal to several seconds) involving stored energy de-excitation by a narrow beam. One presents a sequence of video frames at one of which the revealed effect is recorded. To provide explanation one presents the calculated dependencies of electron density radial gradient ensuring refractions of closed orbits of photons. The revealed effect is interpreted to be a consequence of distortion of the shape of surface total internal reflection in a long-lived plasmoid