Electron-Beam Guiding and Phase-Mix Damping by a Laser-Ionized Channel

W. E. Martin; G. J. Caporaso; W. M. Fawley; D. Prosnitz; A. G. Cole

doi:10.1103/PhysRevLett.54.685

Electron-Beam Guiding and Phase-Mix Damping by a Laser-Ionized Channel

W. E. Martin, G. J. Caporaso, W. M. Fawley, D. Prosnitz, and A. G. Cole

Phys. Rev. Lett. 54, 685 – Published 18 February 1985

Abstract

An ultraviolet-laser-ionized channel in low-pressure benzene has been successfully used to guide and focus a 7-kA relativistic electron beam over distances up to 4 m. In addition, phase-mix damping of coherent, transverse beam motion has been demonstrated. A simple analytical model of the equilibrium beam profile is presented which is in reasonable agreement with the data.