STRIPED SUPERCONDUCTOR UNDULATOR SCHEME

A new microundulator scheme is proposed. Superconductor (SC) material layers are interspaced with ferromagnetic layers composing a striped b lock (blocks). Electrons from a relativistic beam passing transversall y to the layers direction near this striped surface will be deflected periodically due to the interaction with self-induced currents: SC pro vides repulsion and ferromagnetic layers provide attraction. A gas loa ding of the order of 1-0.1 Torr would be necessary for space charge ne utralisation and for providing pure current-current interaction. Since the interaction strength is proportional to the current itself, rathe r high beam currents are needed for noticeable beam deflections. As it is shown kA currents would be effective enough. One of the specific f eatures of this scheme is that the undulator factor depends linearly o n the beam current. The scheme is analysing from the microundulator de sign problem point of view.